update

md/redis_key.go

@@ -0,0 +1,6 @@
+package md
+
+const (
+	AppCfgCacheKey = "cfg_cache:%s" // 占位符：key的第一个字母
+	CfgCacheTime   = 86400 * 0.5
+)

src/dao/sys_cfg_dao.go

@@ -0,0 +1,14 @@
+package dao
+
+import "code.fnuoos.com/EggPlanet/egg_models.git/src/model"
+
+type SysCfgDao interface {
+	SysCfgGetAll() (*[]model.SysCfg, error)
+	SysCfgGetOneNoDataNoErr(key string) (*model.SysCfg, error)
+	SysCfgGetOne(key string) (*model.SysCfg, error)
+	SysCfgInsert(key, val, memo string) bool
+	SysCfgUpdate(key, val string) bool
+	SysCfgGetWithDb(HKey string) string
+	SysCfgDel(HKey string) error
+	SysCfgFindWithDb(keys ...string) map[string]string
+}

src/implement/sys_cfg_implement.go

@@ -0,0 +1,127 @@
+package implement
+
+import (
+	"code.fnuoos.com/EggPlanet/egg_models.git/md"
+	"code.fnuoos.com/EggPlanet/egg_models.git/src/dao"
+	"code.fnuoos.com/EggPlanet/egg_models.git/src/model"
+	"code.fnuoos.com/EggPlanet/egg_models.git/utils/cache"
+	zhios_order_relate_logx "code.fnuoos.com/EggPlanet/egg_models.git/utils/logx"
+	"fmt"
+	"xorm.io/xorm"
+)
+
+func NewSysCfgDb(engine *xorm.Engine, redisAddr string) dao.SysCfgDao {
+	if redisAddr != "" {
+		cache.NewRedis(redisAddr)
+	}
+	return &SysCfgDb{
+		Db:        engine,
+		RedisAddr: redisAddr,
+	}
+}
+
+type SysCfgDb struct {
+	Db        *xorm.Engine
+	RedisAddr string
+}
+
+func (s SysCfgDb) SysCfgGetAll() (*[]model.SysCfg, error) {
+	var cfgList []model.SysCfg
+	if err := s.Db.Cols("key,val,memo").Find(&cfgList); err != nil {
+		return nil, zhios_order_relate_logx.Error(err)
+	}
+	return &cfgList, nil
+}
+
+func (s SysCfgDb) SysCfgGetOneNoDataNoErr(key string) (*model.SysCfg, error) {
+	var cfgList model.SysCfg
+	has, err := s.Db.Where("`key`=?", key).Get(&cfgList)
+	if err != nil {
+		return nil, zhios_order_relate_logx.Error(err)
+	}
+	if !has {
+		return nil, nil
+	}
+	return &cfgList, nil
+}
+
+func (s SysCfgDb) SysCfgGetOne(key string) (*model.SysCfg, error) {
+	var cfgList model.SysCfg
+	if has, err := s.Db.Where("`key`=?", key).Get(&cfgList); err != nil || has == false {
+		return nil, zhios_order_relate_logx.Error(err)
+	}
+	return &cfgList, nil
+}
+
+func (s SysCfgDb) SysCfgInsert(key, val, memo string) bool {
+	cfg := model.SysCfg{Key: key, Val: val, Memo: memo}
+	_, err := s.Db.InsertOne(&cfg)
+	if err != nil {
+		zhios_order_relate_logx.Error(err)
+		return false
+	}
+	return true
+}
+
+func (s SysCfgDb) SysCfgUpdate(key, val string) bool {
+	cfg := model.SysCfg{Key: key, Val: val}
+	_, err := s.Db.Where("`k`=?", key).Cols("v").Update(&cfg)
+	if err != nil {
+		zhios_order_relate_logx.Error(err)
+		return false
+	}
+	s.SysCfgDel(key)
+	return true
+}
+
+func (s SysCfgDb) SysCfgGetWithDb(HKey string) string {
+	cacheKey := fmt.Sprintf(md.AppCfgCacheKey, HKey[0:1])
+	get, err := cache.HGetString(cacheKey, HKey)
+	if err != nil || get == "" {
+		cfg, err := s.SysCfgGetOne(HKey)
+		if err != nil || cfg == nil {
+			_ = zhios_order_relate_logx.Error(err)
+			return ""
+		}
+
+		// key是否存在
+		cacheKeyExist := false
+		if cache.Exists(cacheKey) {
+			cacheKeyExist = true
+		}
+
+		// 设置缓存
+		_, err = cache.HSet(cacheKey, HKey, cfg.Val)
+		if err != nil {
+			_ = zhios_order_relate_logx.Error(err)
+			return ""
+		}
+		if !cacheKeyExist { // 如果是首次设置 设置过期时间
+			_, err := cache.Expire(cacheKey, md.CfgCacheTime)
+			if err != nil {
+				_ = zhios_order_relate_logx.Error(err)
+				return ""
+			}
+		}
+		return cfg.Val
+	}
+	return get
+}
+
+func (s SysCfgDb) SysCfgDel(HKey string) error {
+	cacheKey := fmt.Sprintf(md.AppCfgCacheKey, HKey[0:1])
+	_, err := cache.HDel(cacheKey, HKey)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (s SysCfgDb) SysCfgFindWithDb(keys ...string) map[string]string {
+	res := map[string]string{}
+	for _, v := range keys {
+		val := s.SysCfgGetWithDb(v)
+		res[v] = val
+	}
+	return res
+}

src/model/sys_cfg.go

@@ -1,7 +1,7 @@
 package model
 
 type SysCfg struct {
-	K    string `json:"k" xorm:"not null pk comment('键') VARCHAR(127)"`
-	V    string `json:"v" xorm:"comment('值') TEXT"`
+	Key  string `json:"key" xorm:"not null pk comment('键') VARCHAR(64)"`
+	Val  string `json:"val" xorm:"not null comment('值') TEXT"`
 	Memo string `json:"memo" xorm:"not null default '' comment('备注') VARCHAR(255)"`
 }

utils/cache/base.go

@@ -0,0 +1,421 @@
+package cache
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+	"time"
+)
+
+const (
+	redisDialTTL         = 10 * time.Second
+	redisReadTTL         = 3 * time.Second
+	redisWriteTTL        = 3 * time.Second
+	redisIdleTTL         = 10 * time.Second
+	redisPoolTTL         = 10 * time.Second
+	redisPoolSize    int = 512
+	redisMaxIdleConn int = 64
+	redisMaxActive   int = 512
+)
+
+var (
+	ErrNil          = errors.New("nil return")
+	ErrWrongArgsNum = errors.New("args num error")
+	ErrNegativeInt  = errors.New("redis cluster: unexpected value for Uint64")
+)
+
+// 以下为提供类型转换
+
+func Int(reply interface{}, err error) (int, error) {
+	if err != nil {
+		return 0, err
+	}
+	switch reply := reply.(type) {
+	case int:
+		return reply, nil
+	case int8:
+		return int(reply), nil
+	case int16:
+		return int(reply), nil
+	case int32:
+		return int(reply), nil
+	case int64:
+		x := int(reply)
+		if int64(x) != reply {
+			return 0, strconv.ErrRange
+		}
+		return x, nil
+	case uint:
+		n := int(reply)
+		if n < 0 {
+			return 0, strconv.ErrRange
+		}
+		return n, nil
+	case uint8:
+		return int(reply), nil
+	case uint16:
+		return int(reply), nil
+	case uint32:
+		n := int(reply)
+		if n < 0 {
+			return 0, strconv.ErrRange
+		}
+		return n, nil
+	case uint64:
+		n := int(reply)
+		if n < 0 {
+			return 0, strconv.ErrRange
+		}
+		return n, nil
+	case []byte:
+		data := string(reply)
+		if len(data) == 0 {
+			return 0, ErrNil
+		}
+
+		n, err := strconv.ParseInt(data, 10, 0)
+		return int(n), err
+	case string:
+		if len(reply) == 0 {
+			return 0, ErrNil
+		}
+
+		n, err := strconv.ParseInt(reply, 10, 0)
+		return int(n), err
+	case nil:
+		return 0, ErrNil
+	case error:
+		return 0, reply
+	}
+	return 0, fmt.Errorf("redis cluster: unexpected type for Int, got type %T", reply)
+}
+
+func Int64(reply interface{}, err error) (int64, error) {
+	if err != nil {
+		return 0, err
+	}
+	switch reply := reply.(type) {
+	case int:
+		return int64(reply), nil
+	case int8:
+		return int64(reply), nil
+	case int16:
+		return int64(reply), nil
+	case int32:
+		return int64(reply), nil
+	case int64:
+		return reply, nil
+	case uint:
+		n := int64(reply)
+		if n < 0 {
+			return 0, strconv.ErrRange
+		}
+		return n, nil
+	case uint8:
+		return int64(reply), nil
+	case uint16:
+		return int64(reply), nil
+	case uint32:
+		return int64(reply), nil
+	case uint64:
+		n := int64(reply)
+		if n < 0 {
+			return 0, strconv.ErrRange
+		}
+		return n, nil
+	case []byte:
+		data := string(reply)
+		if len(data) == 0 {
+			return 0, ErrNil
+		}
+
+		n, err := strconv.ParseInt(data, 10, 64)
+		return n, err
+	case string:
+		if len(reply) == 0 {
+			return 0, ErrNil
+		}
+
+		n, err := strconv.ParseInt(reply, 10, 64)
+		return n, err
+	case nil:
+		return 0, ErrNil
+	case error:
+		return 0, reply
+	}
+	return 0, fmt.Errorf("redis cluster: unexpected type for Int64, got type %T", reply)
+}
+
+func Uint64(reply interface{}, err error) (uint64, error) {
+	if err != nil {
+		return 0, err
+	}
+	switch reply := reply.(type) {
+	case uint:
+		return uint64(reply), nil
+	case uint8:
+		return uint64(reply), nil
+	case uint16:
+		return uint64(reply), nil
+	case uint32:
+		return uint64(reply), nil
+	case uint64:
+		return reply, nil
+	case int:
+		if reply < 0 {
+			return 0, ErrNegativeInt
+		}
+		return uint64(reply), nil
+	case int8:
+		if reply < 0 {
+			return 0, ErrNegativeInt
+		}
+		return uint64(reply), nil
+	case int16:
+		if reply < 0 {
+			return 0, ErrNegativeInt
+		}
+		return uint64(reply), nil
+	case int32:
+		if reply < 0 {
+			return 0, ErrNegativeInt
+		}
+		return uint64(reply), nil
+	case int64:
+		if reply < 0 {
+			return 0, ErrNegativeInt
+		}
+		return uint64(reply), nil
+	case []byte:
+		data := string(reply)
+		if len(data) == 0 {
+			return 0, ErrNil
+		}
+
+		n, err := strconv.ParseUint(data, 10, 64)
+		return n, err
+	case string:
+		if len(reply) == 0 {
+			return 0, ErrNil
+		}
+
+		n, err := strconv.ParseUint(reply, 10, 64)
+		return n, err
+	case nil:
+		return 0, ErrNil
+	case error:
+		return 0, reply
+	}
+	return 0, fmt.Errorf("redis cluster: unexpected type for Uint64, got type %T", reply)
+}
+
+func Float64(reply interface{}, err error) (float64, error) {
+	if err != nil {
+		return 0, err
+	}
+
+	var value float64
+	err = nil
+	switch v := reply.(type) {
+	case float32:
+		value = float64(v)
+	case float64:
+		value = v
+	case int:
+		value = float64(v)
+	case int8:
+		value = float64(v)
+	case int16:
+		value = float64(v)
+	case int32:
+		value = float64(v)
+	case int64:
+		value = float64(v)
+	case uint:
+		value = float64(v)
+	case uint8:
+		value = float64(v)
+	case uint16:
+		value = float64(v)
+	case uint32:
+		value = float64(v)
+	case uint64:
+		value = float64(v)
+	case []byte:
+		data := string(v)
+		if len(data) == 0 {
+			return 0, ErrNil
+		}
+		value, err = strconv.ParseFloat(string(v), 64)
+	case string:
+		if len(v) == 0 {
+			return 0, ErrNil
+		}
+		value, err = strconv.ParseFloat(v, 64)
+	case nil:
+		err = ErrNil
+	case error:
+		err = v
+	default:
+		err = fmt.Errorf("redis cluster: unexpected type for Float64, got type %T", v)
+	}
+
+	return value, err
+}
+
+func Bool(reply interface{}, err error) (bool, error) {
+	if err != nil {
+		return false, err
+	}
+	switch reply := reply.(type) {
+	case bool:
+		return reply, nil
+	case int64:
+		return reply != 0, nil
+	case []byte:
+		data := string(reply)
+		if len(data) == 0 {
+			return false, ErrNil
+		}
+
+		return strconv.ParseBool(data)
+	case string:
+		if len(reply) == 0 {
+			return false, ErrNil
+		}
+
+		return strconv.ParseBool(reply)
+	case nil:
+		return false, ErrNil
+	case error:
+		return false, reply
+	}
+	return false, fmt.Errorf("redis cluster: unexpected type for Bool, got type %T", reply)
+}
+
+func Bytes(reply interface{}, err error) ([]byte, error) {
+	if err != nil {
+		return nil, err
+	}
+	switch reply := reply.(type) {
+	case []byte:
+		if len(reply) == 0 {
+			return nil, ErrNil
+		}
+		return reply, nil
+	case string:
+		data := []byte(reply)
+		if len(data) == 0 {
+			return nil, ErrNil
+		}
+		return data, nil
+	case nil:
+		return nil, ErrNil
+	case error:
+		return nil, reply
+	}
+	return nil, fmt.Errorf("redis cluster: unexpected type for Bytes, got type %T", reply)
+}
+
+func String(reply interface{}, err error) (string, error) {
+	if err != nil {
+		return "", err
+	}
+
+	value := ""
+	err = nil
+	switch v := reply.(type) {
+	case string:
+		if len(v) == 0 {
+			return "", ErrNil
+		}
+
+		value = v
+	case []byte:
+		if len(v) == 0 {
+			return "", ErrNil
+		}
+
+		value = string(v)
+	case int:
+		value = strconv.FormatInt(int64(v), 10)
+	case int8:
+		value = strconv.FormatInt(int64(v), 10)
+	case int16:
+		value = strconv.FormatInt(int64(v), 10)
+	case int32:
+		value = strconv.FormatInt(int64(v), 10)
+	case int64:
+		value = strconv.FormatInt(v, 10)
+	case uint:
+		value = strconv.FormatUint(uint64(v), 10)
+	case uint8:
+		value = strconv.FormatUint(uint64(v), 10)
+	case uint16:
+		value = strconv.FormatUint(uint64(v), 10)
+	case uint32:
+		value = strconv.FormatUint(uint64(v), 10)
+	case uint64:
+		value = strconv.FormatUint(v, 10)
+	case float32:
+		value = strconv.FormatFloat(float64(v), 'f', -1, 32)
+	case float64:
+		value = strconv.FormatFloat(v, 'f', -1, 64)
+	case bool:
+		value = strconv.FormatBool(v)
+	case nil:
+		err = ErrNil
+	case error:
+		err = v
+	default:
+		err = fmt.Errorf("redis cluster: unexpected type for String, got type %T", v)
+	}
+
+	return value, err
+}
+
+func Strings(reply interface{}, err error) ([]string, error) {
+	if err != nil {
+		return nil, err
+	}
+	switch reply := reply.(type) {
+	case []interface{}:
+		result := make([]string, len(reply))
+		for i := range reply {
+			if reply[i] == nil {
+				continue
+			}
+			switch subReply := reply[i].(type) {
+			case string:
+				result[i] = subReply
+			case []byte:
+				result[i] = string(subReply)
+			default:
+				return nil, fmt.Errorf("redis cluster: unexpected element type for String, got type %T", reply[i])
+			}
+		}
+		return result, nil
+	case []string:
+		return reply, nil
+	case nil:
+		return nil, ErrNil
+	case error:
+		return nil, reply
+	}
+	return nil, fmt.Errorf("redis cluster: unexpected type for Strings, got type %T", reply)
+}
+
+func Values(reply interface{}, err error) ([]interface{}, error) {
+	if err != nil {
+		return nil, err
+	}
+	switch reply := reply.(type) {
+	case []interface{}:
+		return reply, nil
+	case nil:
+		return nil, ErrNil
+	case error:
+		return nil, reply
+	}
+	return nil, fmt.Errorf("redis cluster: unexpected type for Values, got type %T", reply)
+}

utils/cache/cache/cache.go

@@ -0,0 +1,107 @@
+package cache
+
+import (
+	"fmt"
+	"time"
+)
+
+var c Cache
+
+type Cache interface {
+	// get cached value by key.
+	Get(key string) interface{}
+	// GetMulti is a batch version of Get.
+	GetMulti(keys []string) []interface{}
+	// set cached value with key and expire time.
+	Put(key string, val interface{}, timeout time.Duration) error
+	// delete cached value by key.
+	Delete(key string) error
+	// increase cached int value by key, as a counter.
+	Incr(key string) error
+	// decrease cached int value by key, as a counter.
+	Decr(key string) error
+	// check if cached value exists or not.
+	IsExist(key string) bool
+	// clear all cache.
+	ClearAll() error
+	// start gc routine based on config string settings.
+	StartAndGC(config string) error
+}
+
+// Instance is a function create a new Cache Instance
+type Instance func() Cache
+
+var adapters = make(map[string]Instance)
+
+// Register makes a cache adapter available by the adapter name.
+// If Register is called twice with the same name or if driver is nil,
+// it panics.
+func Register(name string, adapter Instance) {
+	if adapter == nil {
+		panic("cache: Register adapter is nil")
+	}
+	if _, ok := adapters[name]; ok {
+		panic("cache: Register called twice for adapter " + name)
+	}
+	adapters[name] = adapter
+}
+
+// NewCache Create a new cache driver by adapter name and config string.
+// config need to be correct JSON as string: {"interval":360}.
+// it will start gc automatically.
+func NewCache(adapterName, config string) (adapter Cache, err error) {
+	instanceFunc, ok := adapters[adapterName]
+	if !ok {
+		err = fmt.Errorf("cache: unknown adapter name %q (forgot to import?)", adapterName)
+		return
+	}
+	adapter = instanceFunc()
+	err = adapter.StartAndGC(config)
+	if err != nil {
+		adapter = nil
+	}
+	return
+}
+
+func InitCache(adapterName, config string) (err error) {
+	instanceFunc, ok := adapters[adapterName]
+	if !ok {
+		err = fmt.Errorf("cache: unknown adapter name %q (forgot to import?)", adapterName)
+		return
+	}
+	c = instanceFunc()
+	err = c.StartAndGC(config)
+	if err != nil {
+		c = nil
+	}
+	return
+}
+
+func Get(key string) interface{} {
+	return c.Get(key)
+}
+
+func GetMulti(keys []string) []interface{} {
+	return c.GetMulti(keys)
+}
+func Put(key string, val interface{}, ttl time.Duration) error {
+	return c.Put(key, val, ttl)
+}
+func Delete(key string) error {
+	return c.Delete(key)
+}
+func Incr(key string) error {
+	return c.Incr(key)
+}
+func Decr(key string) error {
+	return c.Decr(key)
+}
+func IsExist(key string) bool {
+	return c.IsExist(key)
+}
+func ClearAll() error {
+	return c.ClearAll()
+}
+func StartAndGC(cfg string) error {
+	return c.StartAndGC(cfg)
+}

utils/cache/cache/conv.go

@@ -0,0 +1,86 @@
+package cache
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// GetString convert interface to string.
+func GetString(v interface{}) string {
+	switch result := v.(type) {
+	case string:
+		return result
+	case []byte:
+		return string(result)
+	default:
+		if v != nil {
+			return fmt.Sprint(result)
+		}
+	}
+	return ""
+}
+
+// GetInt convert interface to int.
+func GetInt(v interface{}) int {
+	switch result := v.(type) {
+	case int:
+		return result
+	case int32:
+		return int(result)
+	case int64:
+		return int(result)
+	default:
+		if d := GetString(v); d != "" {
+			value, _ := strconv.Atoi(d)
+			return value
+		}
+	}
+	return 0
+}
+
+// GetInt64 convert interface to int64.
+func GetInt64(v interface{}) int64 {
+	switch result := v.(type) {
+	case int:
+		return int64(result)
+	case int32:
+		return int64(result)
+	case int64:
+		return result
+	default:
+
+		if d := GetString(v); d != "" {
+			value, _ := strconv.ParseInt(d, 10, 64)
+			return value
+		}
+	}
+	return 0
+}
+
+// GetFloat64 convert interface to float64.
+func GetFloat64(v interface{}) float64 {
+	switch result := v.(type) {
+	case float64:
+		return result
+	default:
+		if d := GetString(v); d != "" {
+			value, _ := strconv.ParseFloat(d, 64)
+			return value
+		}
+	}
+	return 0
+}
+
+// GetBool convert interface to bool.
+func GetBool(v interface{}) bool {
+	switch result := v.(type) {
+	case bool:
+		return result
+	default:
+		if d := GetString(v); d != "" {
+			value, _ := strconv.ParseBool(d)
+			return value
+		}
+	}
+	return false
+}

utils/cache/cache/file.go

@@ -0,0 +1,241 @@
+package cache
+
+import (
+	"bytes"
+	"crypto/md5"
+	"encoding/gob"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"reflect"
+	"strconv"
+	"time"
+)
+
+// FileCacheItem is basic unit of file cache adapter.
+// it contains data and expire time.
+type FileCacheItem struct {
+	Data       interface{}
+	LastAccess time.Time
+	Expired    time.Time
+}
+
+// FileCache Config
+var (
+	FileCachePath           = "cache"     // cache directory
+	FileCacheFileSuffix     = ".bin"      // cache file suffix
+	FileCacheDirectoryLevel = 2           // cache file deep level if auto generated cache files.
+	FileCacheEmbedExpiry    time.Duration // cache expire time, default is no expire forever.
+)
+
+// FileCache is cache adapter for file storage.
+type FileCache struct {
+	CachePath      string
+	FileSuffix     string
+	DirectoryLevel int
+	EmbedExpiry    int
+}
+
+// NewFileCache Create new file cache with no config.
+// the level and expiry need set in method StartAndGC as config string.
+func NewFileCache() Cache {
+	//    return &FileCache{CachePath:FileCachePath, FileSuffix:FileCacheFileSuffix}
+	return &FileCache{}
+}
+
+// StartAndGC will start and begin gc for file cache.
+// the config need to be like {CachePath:"/cache","FileSuffix":".bin","DirectoryLevel":2,"EmbedExpiry":0}
+func (fc *FileCache) StartAndGC(config string) error {
+
+	var cfg map[string]string
+	json.Unmarshal([]byte(config), &cfg)
+	if _, ok := cfg["CachePath"]; !ok {
+		cfg["CachePath"] = FileCachePath
+	}
+	if _, ok := cfg["FileSuffix"]; !ok {
+		cfg["FileSuffix"] = FileCacheFileSuffix
+	}
+	if _, ok := cfg["DirectoryLevel"]; !ok {
+		cfg["DirectoryLevel"] = strconv.Itoa(FileCacheDirectoryLevel)
+	}
+	if _, ok := cfg["EmbedExpiry"]; !ok {
+		cfg["EmbedExpiry"] = strconv.FormatInt(int64(FileCacheEmbedExpiry.Seconds()), 10)
+	}
+	fc.CachePath = cfg["CachePath"]
+	fc.FileSuffix = cfg["FileSuffix"]
+	fc.DirectoryLevel, _ = strconv.Atoi(cfg["DirectoryLevel"])
+	fc.EmbedExpiry, _ = strconv.Atoi(cfg["EmbedExpiry"])
+
+	fc.Init()
+	return nil
+}
+
+// Init will make new dir for file cache if not exist.
+func (fc *FileCache) Init() {
+	if ok, _ := exists(fc.CachePath); !ok { // todo : error handle
+		_ = os.MkdirAll(fc.CachePath, os.ModePerm) // todo : error handle
+	}
+}
+
+// get cached file name. it's md5 encoded.
+func (fc *FileCache) getCacheFileName(key string) string {
+	m := md5.New()
+	io.WriteString(m, key)
+	keyMd5 := hex.EncodeToString(m.Sum(nil))
+	cachePath := fc.CachePath
+	switch fc.DirectoryLevel {
+	case 2:
+		cachePath = filepath.Join(cachePath, keyMd5[0:2], keyMd5[2:4])
+	case 1:
+		cachePath = filepath.Join(cachePath, keyMd5[0:2])
+	}
+
+	if ok, _ := exists(cachePath); !ok { // todo : error handle
+		_ = os.MkdirAll(cachePath, os.ModePerm) // todo : error handle
+	}
+
+	return filepath.Join(cachePath, fmt.Sprintf("%s%s", keyMd5, fc.FileSuffix))
+}
+
+// Get value from file cache.
+// if non-exist or expired, return empty string.
+func (fc *FileCache) Get(key string) interface{} {
+	fileData, err := FileGetContents(fc.getCacheFileName(key))
+	if err != nil {
+		return ""
+	}
+	var to FileCacheItem
+	GobDecode(fileData, &to)
+	if to.Expired.Before(time.Now()) {
+		return ""
+	}
+	return to.Data
+}
+
+// GetMulti gets values from file cache.
+// if non-exist or expired, return empty string.
+func (fc *FileCache) GetMulti(keys []string) []interface{} {
+	var rc []interface{}
+	for _, key := range keys {
+		rc = append(rc, fc.Get(key))
+	}
+	return rc
+}
+
+// Put value into file cache.
+// timeout means how long to keep this file, unit of ms.
+// if timeout equals FileCacheEmbedExpiry(default is 0), cache this item forever.
+func (fc *FileCache) Put(key string, val interface{}, timeout time.Duration) error {
+	gob.Register(val)
+
+	item := FileCacheItem{Data: val}
+	if timeout == FileCacheEmbedExpiry {
+		item.Expired = time.Now().Add((86400 * 365 * 10) * time.Second) // ten years
+	} else {
+		item.Expired = time.Now().Add(timeout)
+	}
+	item.LastAccess = time.Now()
+	data, err := GobEncode(item)
+	if err != nil {
+		return err
+	}
+	return FilePutContents(fc.getCacheFileName(key), data)
+}
+
+// Delete file cache value.
+func (fc *FileCache) Delete(key string) error {
+	filename := fc.getCacheFileName(key)
+	if ok, _ := exists(filename); ok {
+		return os.Remove(filename)
+	}
+	return nil
+}
+
+// Incr will increase cached int value.
+// fc value is saving forever unless Delete.
+func (fc *FileCache) Incr(key string) error {
+	data := fc.Get(key)
+	var incr int
+	if reflect.TypeOf(data).Name() != "int" {
+		incr = 0
+	} else {
+		incr = data.(int) + 1
+	}
+	fc.Put(key, incr, FileCacheEmbedExpiry)
+	return nil
+}
+
+// Decr will decrease cached int value.
+func (fc *FileCache) Decr(key string) error {
+	data := fc.Get(key)
+	var decr int
+	if reflect.TypeOf(data).Name() != "int" || data.(int)-1 <= 0 {
+		decr = 0
+	} else {
+		decr = data.(int) - 1
+	}
+	fc.Put(key, decr, FileCacheEmbedExpiry)
+	return nil
+}
+
+// IsExist check value is exist.
+func (fc *FileCache) IsExist(key string) bool {
+	ret, _ := exists(fc.getCacheFileName(key))
+	return ret
+}
+
+// ClearAll will clean cached files.
+// not implemented.
+func (fc *FileCache) ClearAll() error {
+	return nil
+}
+
+// check file exist.
+func exists(path string) (bool, error) {
+	_, err := os.Stat(path)
+	if err == nil {
+		return true, nil
+	}
+	if os.IsNotExist(err) {
+		return false, nil
+	}
+	return false, err
+}
+
+// FileGetContents Get bytes to file.
+// if non-exist, create this file.
+func FileGetContents(filename string) (data []byte, e error) {
+	return ioutil.ReadFile(filename)
+}
+
+// FilePutContents Put bytes to file.
+// if non-exist, create this file.
+func FilePutContents(filename string, content []byte) error {
+	return ioutil.WriteFile(filename, content, os.ModePerm)
+}
+
+// GobEncode Gob encodes file cache item.
+func GobEncode(data interface{}) ([]byte, error) {
+	buf := bytes.NewBuffer(nil)
+	enc := gob.NewEncoder(buf)
+	err := enc.Encode(data)
+	if err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), err
+}
+
+// GobDecode Gob decodes file cache item.
+func GobDecode(data []byte, to *FileCacheItem) error {
+	buf := bytes.NewBuffer(data)
+	dec := gob.NewDecoder(buf)
+	return dec.Decode(&to)
+}
+
+func init() {
+	Register("file", NewFileCache)
+}

utils/cache/cache/memory.go

@@ -0,0 +1,239 @@
+package cache
+
+import (
+	"encoding/json"
+	"errors"
+	"sync"
+	"time"
+)
+
+var (
+	// DefaultEvery means the clock time of recycling the expired cache items in memory.
+	DefaultEvery = 60 // 1 minute
+)
+
+// MemoryItem store memory cache item.
+type MemoryItem struct {
+	val         interface{}
+	createdTime time.Time
+	lifespan    time.Duration
+}
+
+func (mi *MemoryItem) isExpire() bool {
+	// 0 means forever
+	if mi.lifespan == 0 {
+		return false
+	}
+	return time.Now().Sub(mi.createdTime) > mi.lifespan
+}
+
+// MemoryCache is Memory cache adapter.
+// it contains a RW locker for safe map storage.
+type MemoryCache struct {
+	sync.RWMutex
+	dur   time.Duration
+	items map[string]*MemoryItem
+	Every int // run an expiration check Every clock time
+}
+
+// NewMemoryCache returns a new MemoryCache.
+func NewMemoryCache() Cache {
+	cache := MemoryCache{items: make(map[string]*MemoryItem)}
+	return &cache
+}
+
+// Get cache from memory.
+// if non-existed or expired, return nil.
+func (bc *MemoryCache) Get(name string) interface{} {
+	bc.RLock()
+	defer bc.RUnlock()
+	if itm, ok := bc.items[name]; ok {
+		if itm.isExpire() {
+			return nil
+		}
+		return itm.val
+	}
+	return nil
+}
+
+// GetMulti gets caches from memory.
+// if non-existed or expired, return nil.
+func (bc *MemoryCache) GetMulti(names []string) []interface{} {
+	var rc []interface{}
+	for _, name := range names {
+		rc = append(rc, bc.Get(name))
+	}
+	return rc
+}
+
+// Put cache to memory.
+// if lifespan is 0, it will be forever till restart.
+func (bc *MemoryCache) Put(name string, value interface{}, lifespan time.Duration) error {
+	bc.Lock()
+	defer bc.Unlock()
+	bc.items[name] = &MemoryItem{
+		val:         value,
+		createdTime: time.Now(),
+		lifespan:    lifespan,
+	}
+	return nil
+}
+
+// Delete cache in memory.
+func (bc *MemoryCache) Delete(name string) error {
+	bc.Lock()
+	defer bc.Unlock()
+	if _, ok := bc.items[name]; !ok {
+		return errors.New("key not exist")
+	}
+	delete(bc.items, name)
+	if _, ok := bc.items[name]; ok {
+		return errors.New("delete key error")
+	}
+	return nil
+}
+
+// Incr increase cache counter in memory.
+// it supports int,int32,int64,uint,uint32,uint64.
+func (bc *MemoryCache) Incr(key string) error {
+	bc.RLock()
+	defer bc.RUnlock()
+	itm, ok := bc.items[key]
+	if !ok {
+		return errors.New("key not exist")
+	}
+	switch itm.val.(type) {
+	case int:
+		itm.val = itm.val.(int) + 1
+	case int32:
+		itm.val = itm.val.(int32) + 1
+	case int64:
+		itm.val = itm.val.(int64) + 1
+	case uint:
+		itm.val = itm.val.(uint) + 1
+	case uint32:
+		itm.val = itm.val.(uint32) + 1
+	case uint64:
+		itm.val = itm.val.(uint64) + 1
+	default:
+		return errors.New("item val is not (u)int (u)int32 (u)int64")
+	}
+	return nil
+}
+
+// Decr decrease counter in memory.
+func (bc *MemoryCache) Decr(key string) error {
+	bc.RLock()
+	defer bc.RUnlock()
+	itm, ok := bc.items[key]
+	if !ok {
+		return errors.New("key not exist")
+	}
+	switch itm.val.(type) {
+	case int:
+		itm.val = itm.val.(int) - 1
+	case int64:
+		itm.val = itm.val.(int64) - 1
+	case int32:
+		itm.val = itm.val.(int32) - 1
+	case uint:
+		if itm.val.(uint) > 0 {
+			itm.val = itm.val.(uint) - 1
+		} else {
+			return errors.New("item val is less than 0")
+		}
+	case uint32:
+		if itm.val.(uint32) > 0 {
+			itm.val = itm.val.(uint32) - 1
+		} else {
+			return errors.New("item val is less than 0")
+		}
+	case uint64:
+		if itm.val.(uint64) > 0 {
+			itm.val = itm.val.(uint64) - 1
+		} else {
+			return errors.New("item val is less than 0")
+		}
+	default:
+		return errors.New("item val is not int int64 int32")
+	}
+	return nil
+}
+
+// IsExist check cache exist in memory.
+func (bc *MemoryCache) IsExist(name string) bool {
+	bc.RLock()
+	defer bc.RUnlock()
+	if v, ok := bc.items[name]; ok {
+		return !v.isExpire()
+	}
+	return false
+}
+
+// ClearAll will delete all cache in memory.
+func (bc *MemoryCache) ClearAll() error {
+	bc.Lock()
+	defer bc.Unlock()
+	bc.items = make(map[string]*MemoryItem)
+	return nil
+}
+
+// StartAndGC start memory cache. it will check expiration in every clock time.
+func (bc *MemoryCache) StartAndGC(config string) error {
+	var cf map[string]int
+	json.Unmarshal([]byte(config), &cf)
+	if _, ok := cf["interval"]; !ok {
+		cf = make(map[string]int)
+		cf["interval"] = DefaultEvery
+	}
+	dur := time.Duration(cf["interval"]) * time.Second
+	bc.Every = cf["interval"]
+	bc.dur = dur
+	go bc.vacuum()
+	return nil
+}
+
+// check expiration.
+func (bc *MemoryCache) vacuum() {
+	bc.RLock()
+	every := bc.Every
+	bc.RUnlock()
+
+	if every < 1 {
+		return
+	}
+	for {
+		<-time.After(bc.dur)
+		if bc.items == nil {
+			return
+		}
+		if keys := bc.expiredKeys(); len(keys) != 0 {
+			bc.clearItems(keys)
+		}
+	}
+}
+
+// expiredKeys returns key list which are expired.
+func (bc *MemoryCache) expiredKeys() (keys []string) {
+	bc.RLock()
+	defer bc.RUnlock()
+	for key, itm := range bc.items {
+		if itm.isExpire() {
+			keys = append(keys, key)
+		}
+	}
+	return
+}
+
+// clearItems removes all the items which key in keys.
+func (bc *MemoryCache) clearItems(keys []string) {
+	bc.Lock()
+	defer bc.Unlock()
+	for _, key := range keys {
+		delete(bc.items, key)
+	}
+}
+
+func init() {
+	Register("memory", NewMemoryCache)
+}

utils/cache/redis.go

@@ -0,0 +1,412 @@
+package cache
+
+import (
+	"encoding/json"
+	"errors"
+	"log"
+	"strings"
+	"time"
+
+	redigo "github.com/gomodule/redigo/redis"
+)
+
+// configuration
+type Config struct {
+	Server   string
+	Password string
+	MaxIdle  int // Maximum number of idle connections in the pool.
+
+	// Maximum number of connections allocated by the pool at a given time.
+	// When zero, there is no limit on the number of connections in the pool.
+	MaxActive int
+
+	// Close connections after remaining idle for this duration. If the value
+	// is zero, then idle connections are not closed. Applications should set
+	// the timeout to a value less than the server's timeout.
+	IdleTimeout time.Duration
+
+	// If Wait is true and the pool is at the MaxActive limit, then Get() waits
+	// for a connection to be returned to the pool before returning.
+	Wait           bool
+	KeyPrefix      string // prefix to all keys; example is "dev environment name"
+	KeyDelimiter   string // delimiter to be used while appending keys; example is ":"
+	KeyPlaceholder string // placeholder to be parsed using given arguments to obtain a final key; example is "?"
+}
+
+var pool *redigo.Pool
+var conf *Config
+
+func NewRedis(addr string) {
+	if addr == "" {
+		panic("\nredis connect string cannot be empty\n")
+	}
+	pool = &redigo.Pool{
+		MaxIdle:     redisMaxIdleConn,
+		IdleTimeout: redisIdleTTL,
+		MaxActive:   redisMaxActive,
+		// MaxConnLifetime: redisDialTTL,
+		Wait: true,
+		Dial: func() (redigo.Conn, error) {
+			c, err := redigo.Dial("tcp", addr,
+				redigo.DialConnectTimeout(redisDialTTL),
+				redigo.DialReadTimeout(redisReadTTL),
+				redigo.DialWriteTimeout(redisWriteTTL),
+			)
+			if err != nil {
+				log.Println("Redis Dial failed: ", err)
+				return nil, err
+			}
+			return c, err
+		},
+		TestOnBorrow: func(c redigo.Conn, t time.Time) error {
+			_, err := c.Do("PING")
+			if err != nil {
+				log.Println("Unable to ping to redis server:", err)
+			}
+			return err
+		},
+	}
+	conn := pool.Get()
+	defer conn.Close()
+	if conn.Err() != nil {
+		println("\nredis connect " + addr + " error: " + conn.Err().Error())
+	} else {
+		println("\nredis connect " + addr + " success!\n")
+	}
+}
+
+func Do(cmd string, args ...interface{}) (reply interface{}, err error) {
+	conn := pool.Get()
+	defer conn.Close()
+	return conn.Do(cmd, args...)
+}
+
+func GetPool() *redigo.Pool {
+	return pool
+}
+
+func ParseKey(key string, vars []string) (string, error) {
+	arr := strings.Split(key, conf.KeyPlaceholder)
+	actualKey := ""
+	if len(arr) != len(vars)+1 {
+		return "", errors.New("redis/connection.go: Insufficient arguments to parse key")
+	} else {
+		for index, val := range arr {
+			if index == 0 {
+				actualKey = arr[index]
+			} else {
+				actualKey += vars[index-1] + val
+			}
+		}
+	}
+	return getPrefixedKey(actualKey), nil
+}
+
+func getPrefixedKey(key string) string {
+	return conf.KeyPrefix + conf.KeyDelimiter + key
+}
+func StripEnvKey(key string) string {
+	return strings.TrimLeft(key, conf.KeyPrefix+conf.KeyDelimiter)
+}
+func SplitKey(key string) []string {
+	return strings.Split(key, conf.KeyDelimiter)
+}
+func Expire(key string, ttl int) (interface{}, error) {
+	return Do("EXPIRE", key, ttl)
+}
+func Persist(key string) (interface{}, error) {
+	return Do("PERSIST", key)
+}
+
+func Del(key string) (interface{}, error) {
+	return Do("DEL", key)
+}
+func Set(key string, data interface{}) (interface{}, error) {
+	// set
+	return Do("SET", key, data)
+}
+func SetNX(key string, data interface{}) (interface{}, error) {
+	return Do("SETNX", key, data)
+}
+func SetEx(key string, data interface{}, ttl int) (interface{}, error) {
+	return Do("SETEX", key, ttl, data)
+}
+
+func SetJson(key string, data interface{}, ttl int) bool {
+	c, err := json.Marshal(data)
+	if err != nil {
+		return false
+	}
+	if ttl < 1 {
+		_, err = Set(key, c)
+	} else {
+		_, err = SetEx(key, c, ttl)
+	}
+	if err != nil {
+		return false
+	}
+	return true
+}
+
+func GetJson(key string, dst interface{}) error {
+	b, err := GetBytes(key)
+	if err != nil {
+		return err
+	}
+	if err = json.Unmarshal(b, dst); err != nil {
+		return err
+	}
+	return nil
+}
+
+func Get(key string) (interface{}, error) {
+	// get
+	return Do("GET", key)
+}
+func GetTTL(key string) (time.Duration, error) {
+	ttl, err := redigo.Int64(Do("TTL", key))
+	return time.Duration(ttl) * time.Second, err
+}
+func GetBytes(key string) ([]byte, error) {
+	return redigo.Bytes(Do("GET", key))
+}
+func GetString(key string) (string, error) {
+	return redigo.String(Do("GET", key))
+}
+func GetStringMap(key string) (map[string]string, error) {
+	return redigo.StringMap(Do("GET", key))
+}
+func GetInt(key string) (int, error) {
+	return redigo.Int(Do("GET", key))
+}
+func GetInt64(key string) (int64, error) {
+	return redigo.Int64(Do("GET", key))
+}
+func GetStringLength(key string) (int, error) {
+	return redigo.Int(Do("STRLEN", key))
+}
+func ZAdd(key string, score float64, data interface{}) (interface{}, error) {
+	return Do("ZADD", key, score, data)
+}
+func ZAddNX(key string, score float64, data interface{}) (interface{}, error) {
+	return Do("ZADD", key, "NX", score, data)
+}
+func ZRem(key string, data interface{}) (interface{}, error) {
+	return Do("ZREM", key, data)
+}
+func ZRange(key string, start int, end int, withScores bool) ([]interface{}, error) {
+	if withScores {
+		return redigo.Values(Do("ZRANGE", key, start, end, "WITHSCORES"))
+	}
+	return redigo.Values(Do("ZRANGE", key, start, end))
+}
+func ZRemRangeByScore(key string, start int64, end int64) ([]interface{}, error) {
+	return redigo.Values(Do("ZREMRANGEBYSCORE", key, start, end))
+}
+func ZCard(setName string) (int64, error) {
+	return redigo.Int64(Do("ZCARD", setName))
+}
+func ZScan(setName string) (int64, error) {
+	return redigo.Int64(Do("ZCARD", setName))
+}
+func SAdd(setName string, data interface{}) (interface{}, error) {
+	return Do("SADD", setName, data)
+}
+func SCard(setName string) (int64, error) {
+	return redigo.Int64(Do("SCARD", setName))
+}
+func SIsMember(setName string, data interface{}) (bool, error) {
+	return redigo.Bool(Do("SISMEMBER", setName, data))
+}
+func SMembers(setName string) ([]string, error) {
+	return redigo.Strings(Do("SMEMBERS", setName))
+}
+func SRem(setName string, data interface{}) (interface{}, error) {
+	return Do("SREM", setName, data)
+}
+func HSet(key string, HKey string, data interface{}) (interface{}, error) {
+	return Do("HSET", key, HKey, data)
+}
+
+func HGet(key string, HKey string) (interface{}, error) {
+	return Do("HGET", key, HKey)
+}
+
+func HMGet(key string, hashKeys ...string) ([]interface{}, error) {
+	ret, err := Do("HMGET", key, hashKeys)
+	if err != nil {
+		return nil, err
+	}
+	reta, ok := ret.([]interface{})
+	if !ok {
+		return nil, errors.New("result not an array")
+	}
+	return reta, nil
+}
+
+func HMSet(key string, hashKeys []string, vals []interface{}) (interface{}, error) {
+	if len(hashKeys) == 0 || len(hashKeys) != len(vals) {
+		var ret interface{}
+		return ret, errors.New("bad length")
+	}
+	input := []interface{}{key}
+	for i, v := range hashKeys {
+		input = append(input, v, vals[i])
+	}
+	return Do("HMSET", input...)
+}
+
+func HGetString(key string, HKey string) (string, error) {
+	return redigo.String(Do("HGET", key, HKey))
+}
+func HGetFloat(key string, HKey string) (float64, error) {
+	f, err := redigo.Float64(Do("HGET", key, HKey))
+	return f, err
+}
+func HGetInt(key string, HKey string) (int, error) {
+	return redigo.Int(Do("HGET", key, HKey))
+}
+func HGetInt64(key string, HKey string) (int64, error) {
+	return redigo.Int64(Do("HGET", key, HKey))
+}
+func HGetBool(key string, HKey string) (bool, error) {
+	return redigo.Bool(Do("HGET", key, HKey))
+}
+func HDel(key string, HKey string) (interface{}, error) {
+	return Do("HDEL", key, HKey)
+}
+
+func HGetAll(key string) (map[string]interface{}, error) {
+	vals, err := redigo.Values(Do("HGETALL", key))
+	if err != nil {
+		return nil, err
+	}
+	num := len(vals) / 2
+	result := make(map[string]interface{}, num)
+	for i := 0; i < num; i++ {
+		key, _ := redigo.String(vals[2*i], nil)
+		result[key] = vals[2*i+1]
+	}
+	return result, nil
+}
+
+func FlushAll() bool {
+	res, _ := redigo.String(Do("FLUSHALL"))
+	if res == "" {
+		return false
+	}
+	return true
+}
+
+// NOTE: Use this in production environment with extreme care.
+// Read more here:https://redigo.io/commands/keys
+func Keys(pattern string) ([]string, error) {
+	return redigo.Strings(Do("KEYS", pattern))
+}
+
+func HKeys(key string) ([]string, error) {
+	return redigo.Strings(Do("HKEYS", key))
+}
+
+func Exists(key string) bool {
+	count, err := redigo.Int(Do("EXISTS", key))
+	if count == 0 || err != nil {
+		return false
+	}
+	return true
+}
+
+func Incr(key string) (int64, error) {
+	return redigo.Int64(Do("INCR", key))
+}
+
+func Decr(key string) (int64, error) {
+	return redigo.Int64(Do("DECR", key))
+}
+
+func IncrBy(key string, incBy int64) (int64, error) {
+	return redigo.Int64(Do("INCRBY", key, incBy))
+}
+
+func DecrBy(key string, decrBy int64) (int64, error) {
+	return redigo.Int64(Do("DECRBY", key))
+}
+
+func IncrByFloat(key string, incBy float64) (float64, error) {
+	return redigo.Float64(Do("INCRBYFLOAT", key, incBy))
+}
+
+func DecrByFloat(key string, decrBy float64) (float64, error) {
+	return redigo.Float64(Do("DECRBYFLOAT", key, decrBy))
+}
+
+// use for message queue
+func LPush(key string, data interface{}) (interface{}, error) {
+	// set
+	return Do("LPUSH", key, data)
+}
+
+func LPop(key string) (interface{}, error) {
+	return Do("LPOP", key)
+}
+
+func LPopString(key string) (string, error) {
+	return redigo.String(Do("LPOP", key))
+}
+func LPopFloat(key string) (float64, error) {
+	f, err := redigo.Float64(Do("LPOP", key))
+	return f, err
+}
+func LPopInt(key string) (int, error) {
+	return redigo.Int(Do("LPOP", key))
+}
+func LPopInt64(key string) (int64, error) {
+	return redigo.Int64(Do("LPOP", key))
+}
+
+func RPush(key string, data interface{}) (interface{}, error) {
+	// set
+	return Do("RPUSH", key, data)
+}
+
+func RPop(key string) (interface{}, error) {
+	return Do("RPOP", key)
+}
+
+func RPopString(key string) (string, error) {
+	return redigo.String(Do("RPOP", key))
+}
+func RPopFloat(key string) (float64, error) {
+	f, err := redigo.Float64(Do("RPOP", key))
+	return f, err
+}
+func RPopInt(key string) (int, error) {
+	return redigo.Int(Do("RPOP", key))
+}
+func RPopInt64(key string) (int64, error) {
+	return redigo.Int64(Do("RPOP", key))
+}
+
+func Scan(cursor int64, pattern string, count int64) (int64, []string, error) {
+	var items []string
+	var newCursor int64
+
+	values, err := redigo.Values(Do("SCAN", cursor, "MATCH", pattern, "COUNT", count))
+	if err != nil {
+		return 0, nil, err
+	}
+	values, err = redigo.Scan(values, &newCursor, &items)
+	if err != nil {
+		return 0, nil, err
+	}
+	return newCursor, items, nil
+}
+
+func LPushMax(key string, data ...interface{}) (interface{}, error) {
+	// set
+	return Do("LPUSH", key, data)
+}
+
+func SelectDb(db int) (interface{}, error) {
+	return Do("SELECT", db)
+}

utils/cache/redis_cluster.go

@@ -0,0 +1,622 @@
+package cache
+
+import (
+	"strconv"
+	"time"
+
+	"github.com/go-redis/redis"
+)
+
+var pools *redis.ClusterClient
+
+func NewRedisCluster(addrs []string) error {
+	opt := &redis.ClusterOptions{
+		Addrs:        addrs,
+		PoolSize:     redisPoolSize,
+		PoolTimeout:  redisPoolTTL,
+		IdleTimeout:  redisIdleTTL,
+		DialTimeout:  redisDialTTL,
+		ReadTimeout:  redisReadTTL,
+		WriteTimeout: redisWriteTTL,
+	}
+	pools = redis.NewClusterClient(opt)
+	if err := pools.Ping().Err(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func RCGet(key string) (interface{}, error) {
+	res, err := pools.Get(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return []byte(res), nil
+}
+func RCSet(key string, value interface{}) error {
+	err := pools.Set(key, value, 0).Err()
+	return convertError(err)
+}
+func RCGetSet(key string, value interface{}) (interface{}, error) {
+	res, err := pools.GetSet(key, value).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return []byte(res), nil
+}
+func RCSetNx(key string, value interface{}) (int64, error) {
+	res, err := pools.SetNX(key, value, 0).Result()
+	if err != nil {
+		return 0, convertError(err)
+	}
+	if res {
+		return 1, nil
+	}
+	return 0, nil
+}
+func RCSetEx(key string, value interface{}, timeout int64) error {
+	_, err := pools.Set(key, value, time.Duration(timeout)*time.Second).Result()
+	if err != nil {
+		return convertError(err)
+	}
+	return nil
+}
+
+// nil表示成功，ErrNil表示数据库内已经存在这个key，其他表示数据库发生错误
+func RCSetNxEx(key string, value interface{}, timeout int64) error {
+	res, err := pools.SetNX(key, value, time.Duration(timeout)*time.Second).Result()
+	if err != nil {
+		return convertError(err)
+	}
+	if res {
+		return nil
+	}
+	return ErrNil
+}
+func RCMGet(keys ...string) ([]interface{}, error) {
+	res, err := pools.MGet(keys...).Result()
+	return res, convertError(err)
+}
+
+// 为确保多个key映射到同一个slot，每个key最好加上hash tag，如:{test}
+func RCMSet(kvs map[string]interface{}) error {
+	pairs := make([]string, 0, len(kvs)*2)
+	for k, v := range kvs {
+		val, err := String(v, nil)
+		if err != nil {
+			return err
+		}
+		pairs = append(pairs, k, val)
+	}
+	return convertError(pools.MSet(pairs).Err())
+}
+
+// 为确保多个key映射到同一个slot，每个key最好加上hash tag，如:{test}
+func RCMSetNX(kvs map[string]interface{}) (bool, error) {
+	pairs := make([]string, 0, len(kvs)*2)
+	for k, v := range kvs {
+		val, err := String(v, nil)
+		if err != nil {
+			return false, err
+		}
+		pairs = append(pairs, k, val)
+	}
+	res, err := pools.MSetNX(pairs).Result()
+	return res, convertError(err)
+}
+func RCExpireAt(key string, timestamp int64) (int64, error) {
+	res, err := pools.ExpireAt(key, time.Unix(timestamp, 0)).Result()
+	if err != nil {
+		return 0, convertError(err)
+	}
+	if res {
+		return 1, nil
+	}
+	return 0, nil
+}
+func RCDel(keys ...string) (int64, error) {
+	args := make([]interface{}, 0, len(keys))
+	for _, key := range keys {
+		args = append(args, key)
+	}
+	res, err := pools.Del(keys...).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCIncr(key string) (int64, error) {
+	res, err := pools.Incr(key).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCIncrBy(key string, delta int64) (int64, error) {
+	res, err := pools.IncrBy(key, delta).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCExpire(key string, duration int64) (int64, error) {
+	res, err := pools.Expire(key, time.Duration(duration)*time.Second).Result()
+	if err != nil {
+		return 0, convertError(err)
+	}
+	if res {
+		return 1, nil
+	}
+	return 0, nil
+}
+func RCExists(key string) (bool, error) {
+	res, err := pools.Exists(key).Result()
+	if err != nil {
+		return false, convertError(err)
+	}
+	if res > 0 {
+		return true, nil
+	}
+	return false, nil
+}
+func RCHGet(key string, field string) (interface{}, error) {
+	res, err := pools.HGet(key, field).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return []byte(res), nil
+}
+func RCHLen(key string) (int64, error) {
+	res, err := pools.HLen(key).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCHSet(key string, field string, val interface{}) error {
+	value, err := String(val, nil)
+	if err != nil && err != ErrNil {
+		return err
+	}
+	_, err = pools.HSet(key, field, value).Result()
+	if err != nil {
+		return convertError(err)
+	}
+	return nil
+}
+func RCHDel(key string, fields ...string) (int64, error) {
+	args := make([]interface{}, 0, len(fields)+1)
+	args = append(args, key)
+	for _, field := range fields {
+		args = append(args, field)
+	}
+	res, err := pools.HDel(key, fields...).Result()
+	if err != nil {
+		return 0, convertError(err)
+	}
+	return res, nil
+}
+
+func RCHMGet(key string, fields ...string) (interface{}, error) {
+	args := make([]interface{}, 0, len(fields)+1)
+	args = append(args, key)
+	for _, field := range fields {
+		args = append(args, field)
+	}
+	if len(fields) == 0 {
+		return nil, ErrNil
+	}
+	res, err := pools.HMGet(key, fields...).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func RCHMSet(key string, kvs ...interface{}) error {
+	if len(kvs) == 0 {
+		return nil
+	}
+	if len(kvs)%2 != 0 {
+		return ErrWrongArgsNum
+	}
+	var err error
+	v := map[string]interface{}{} // todo change
+	v["field"], err = String(kvs[0], nil)
+	if err != nil && err != ErrNil {
+		return err
+	}
+	v["value"], err = String(kvs[1], nil)
+	if err != nil && err != ErrNil {
+		return err
+	}
+	pairs := make([]string, 0, len(kvs)-2)
+	if len(kvs) > 2 {
+		for _, kv := range kvs[2:] {
+			kvString, err := String(kv, nil)
+			if err != nil && err != ErrNil {
+				return err
+			}
+			pairs = append(pairs, kvString)
+		}
+	}
+	v["paris"] = pairs
+	_, err = pools.HMSet(key, v).Result()
+	if err != nil {
+		return convertError(err)
+	}
+	return nil
+}
+
+func RCHKeys(key string) ([]string, error) {
+	res, err := pools.HKeys(key).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCHVals(key string) ([]interface{}, error) {
+	res, err := pools.HVals(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	rs := make([]interface{}, 0, len(res))
+	for _, res := range res {
+		rs = append(rs, res)
+	}
+	return rs, nil
+}
+func RCHGetAll(key string) (map[string]string, error) {
+	vals, err := pools.HGetAll(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return vals, nil
+}
+func RCHIncrBy(key, field string, delta int64) (int64, error) {
+	res, err := pools.HIncrBy(key, field, delta).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCZAdd(key string, kvs ...interface{}) (int64, error) {
+	args := make([]interface{}, 0, len(kvs)+1)
+	args = append(args, key)
+	args = append(args, kvs...)
+	if len(kvs) == 0 {
+		return 0, nil
+	}
+	if len(kvs)%2 != 0 {
+		return 0, ErrWrongArgsNum
+	}
+	zs := make([]redis.Z, len(kvs)/2)
+	for i := 0; i < len(kvs); i += 2 {
+		idx := i / 2
+		score, err := Float64(kvs[i], nil)
+		if err != nil && err != ErrNil {
+			return 0, err
+		}
+		zs[idx].Score = score
+		zs[idx].Member = kvs[i+1]
+	}
+	res, err := pools.ZAdd(key, zs...).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCZRem(key string, members ...string) (int64, error) {
+	args := make([]interface{}, 0, len(members))
+	args = append(args, key)
+	for _, member := range members {
+		args = append(args, member)
+	}
+	res, err := pools.ZRem(key, members).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, err
+}
+
+func RCZRange(key string, min, max int64, withScores bool) (interface{}, error) {
+	res := make([]interface{}, 0)
+	if withScores {
+		zs, err := pools.ZRangeWithScores(key, min, max).Result()
+		if err != nil {
+			return nil, convertError(err)
+		}
+		for _, z := range zs {
+			res = append(res, z.Member, strconv.FormatFloat(z.Score, 'f', -1, 64))
+		}
+	} else {
+		ms, err := pools.ZRange(key, min, max).Result()
+		if err != nil {
+			return nil, convertError(err)
+		}
+		for _, m := range ms {
+			res = append(res, m)
+		}
+	}
+	return res, nil
+}
+func RCZRangeByScoreWithScore(key string, min, max int64) (map[string]int64, error) {
+	opt := new(redis.ZRangeBy)
+	opt.Min = strconv.FormatInt(int64(min), 10)
+	opt.Max = strconv.FormatInt(int64(max), 10)
+	opt.Count = -1
+	opt.Offset = 0
+	vals, err := pools.ZRangeByScoreWithScores(key, *opt).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	res := make(map[string]int64, len(vals))
+	for _, val := range vals {
+		key, err := String(val.Member, nil)
+		if err != nil && err != ErrNil {
+			return nil, err
+		}
+		res[key] = int64(val.Score)
+	}
+	return res, nil
+}
+func RCLRange(key string, start, stop int64) (interface{}, error) {
+	res, err := pools.LRange(key, start, stop).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func RCLSet(key string, index int, value interface{}) error {
+	err := pools.LSet(key, int64(index), value).Err()
+	return convertError(err)
+}
+func RCLLen(key string) (int64, error) {
+	res, err := pools.LLen(key).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCLRem(key string, count int, value interface{}) (int, error) {
+	val, _ := value.(string)
+	res, err := pools.LRem(key, int64(count), val).Result()
+	if err != nil {
+		return int(res), convertError(err)
+	}
+	return int(res), nil
+}
+func RCTTl(key string) (int64, error) {
+	duration, err := pools.TTL(key).Result()
+	if err != nil {
+		return int64(duration.Seconds()), convertError(err)
+	}
+	return int64(duration.Seconds()), nil
+}
+func RCLPop(key string) (interface{}, error) {
+	res, err := pools.LPop(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func RCRPop(key string) (interface{}, error) {
+	res, err := pools.RPop(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func RCBLPop(key string, timeout int) (interface{}, error) {
+	res, err := pools.BLPop(time.Duration(timeout)*time.Second, key).Result()
+	if err != nil {
+		// 兼容redis 2.x
+		if err == redis.Nil {
+			return nil, ErrNil
+		}
+		return nil, err
+	}
+	return res[1], nil
+}
+func RCBRPop(key string, timeout int) (interface{}, error) {
+	res, err := pools.BRPop(time.Duration(timeout)*time.Second, key).Result()
+	if err != nil {
+		// 兼容redis 2.x
+		if err == redis.Nil {
+			return nil, ErrNil
+		}
+		return nil, convertError(err)
+	}
+	return res[1], nil
+}
+func RCLPush(key string, value ...interface{}) error {
+	args := make([]interface{}, 0, len(value)+1)
+	args = append(args, key)
+	args = append(args, value...)
+	vals := make([]string, 0, len(value))
+	for _, v := range value {
+		val, err := String(v, nil)
+		if err != nil && err != ErrNil {
+			return err
+		}
+		vals = append(vals, val)
+	}
+	_, err := pools.LPush(key, vals).Result() // todo ...
+	if err != nil {
+		return convertError(err)
+	}
+	return nil
+}
+func RCRPush(key string, value ...interface{}) error {
+	args := make([]interface{}, 0, len(value)+1)
+	args = append(args, key)
+	args = append(args, value...)
+	vals := make([]string, 0, len(value))
+	for _, v := range value {
+		val, err := String(v, nil)
+		if err != nil && err != ErrNil {
+			if err == ErrNil {
+				continue
+			}
+			return err
+		}
+		if val == "" {
+			continue
+		}
+		vals = append(vals, val)
+	}
+	_, err := pools.RPush(key, vals).Result() // todo ...
+	if err != nil {
+		return convertError(err)
+	}
+	return nil
+}
+
+// 为确保srcKey跟destKey映射到同一个slot，srcKey和destKey需要加上hash tag，如:{test}
+func RCBRPopLPush(srcKey string, destKey string, timeout int) (interface{}, error) {
+	res, err := pools.BRPopLPush(srcKey, destKey, time.Duration(timeout)*time.Second).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+
+// 为确保srcKey跟destKey映射到同一个slot，srcKey和destKey需要加上hash tag，如:{test}
+func RCRPopLPush(srcKey string, destKey string) (interface{}, error) {
+	res, err := pools.RPopLPush(srcKey, destKey).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func RCSAdd(key string, members ...interface{}) (int64, error) {
+	args := make([]interface{}, 0, len(members)+1)
+	args = append(args, key)
+	args = append(args, members...)
+	ms := make([]string, 0, len(members))
+	for _, member := range members {
+		m, err := String(member, nil)
+		if err != nil && err != ErrNil {
+			return 0, err
+		}
+		ms = append(ms, m)
+	}
+	res, err := pools.SAdd(key, ms).Result() // todo ...
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCSPop(key string) ([]byte, error) {
+	res, err := pools.SPop(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return []byte(res), nil
+}
+func RCSIsMember(key string, member interface{}) (bool, error) {
+	m, _ := member.(string)
+	res, err := pools.SIsMember(key, m).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCSRem(key string, members ...interface{}) (int64, error) {
+	args := make([]interface{}, 0, len(members)+1)
+	args = append(args, key)
+	args = append(args, members...)
+	ms := make([]string, 0, len(members))
+	for _, member := range members {
+		m, err := String(member, nil)
+		if err != nil && err != ErrNil {
+			return 0, err
+		}
+		ms = append(ms, m)
+	}
+	res, err := pools.SRem(key, ms).Result() // todo ...
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCSMembers(key string) ([]string, error) {
+	res, err := pools.SMembers(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func RCScriptLoad(luaScript string) (interface{}, error) {
+	res, err := pools.ScriptLoad(luaScript).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func RCEvalSha(sha1 string, numberKeys int, keysArgs ...interface{}) (interface{}, error) {
+	vals := make([]interface{}, 0, len(keysArgs)+2)
+	vals = append(vals, sha1, numberKeys)
+	vals = append(vals, keysArgs...)
+	keys := make([]string, 0, numberKeys)
+	args := make([]string, 0, len(keysArgs)-numberKeys)
+	for i, value := range keysArgs {
+		val, err := String(value, nil)
+		if err != nil && err != ErrNil {
+			return nil, err
+		}
+		if i < numberKeys {
+			keys = append(keys, val)
+		} else {
+			args = append(args, val)
+		}
+	}
+	res, err := pools.EvalSha(sha1, keys, args).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func RCEval(luaScript string, numberKeys int, keysArgs ...interface{}) (interface{}, error) {
+	vals := make([]interface{}, 0, len(keysArgs)+2)
+	vals = append(vals, luaScript, numberKeys)
+	vals = append(vals, keysArgs...)
+	keys := make([]string, 0, numberKeys)
+	args := make([]string, 0, len(keysArgs)-numberKeys)
+	for i, value := range keysArgs {
+		val, err := String(value, nil)
+		if err != nil && err != ErrNil {
+			return nil, err
+		}
+		if i < numberKeys {
+			keys = append(keys, val)
+		} else {
+			args = append(args, val)
+		}
+	}
+	res, err := pools.Eval(luaScript, keys, args).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func RCGetBit(key string, offset int64) (int64, error) {
+	res, err := pools.GetBit(key, offset).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func RCSetBit(key string, offset uint32, value int) (int, error) {
+	res, err := pools.SetBit(key, int64(offset), value).Result()
+	return int(res), convertError(err)
+}
+func RCGetClient() *redis.ClusterClient {
+	return pools
+}
+func convertError(err error) error {
+	if err == redis.Nil {
+		// 为了兼容redis 2.x,这里不返回 ErrNil，ErrNil在调用redis_cluster_reply函数时才返回
+		return nil
+	}
+	return err
+}

utils/cache/redis_pool.go

@@ -0,0 +1,324 @@
+package cache
+
+import (
+	"errors"
+	"log"
+	"strings"
+	"time"
+
+	redigo "github.com/gomodule/redigo/redis"
+)
+
+type RedisPool struct {
+	*redigo.Pool
+}
+
+func NewRedisPool(cfg *Config) *RedisPool {
+	return &RedisPool{&redigo.Pool{
+		MaxIdle:     cfg.MaxIdle,
+		IdleTimeout: cfg.IdleTimeout,
+		MaxActive:   cfg.MaxActive,
+		Wait:        cfg.Wait,
+		Dial: func() (redigo.Conn, error) {
+			c, err := redigo.Dial("tcp", cfg.Server)
+			if err != nil {
+				log.Println("Redis Dial failed: ", err)
+				return nil, err
+			}
+			if cfg.Password != "" {
+				if _, err := c.Do("AUTH", cfg.Password); err != nil {
+					c.Close()
+					log.Println("Redis AUTH failed: ", err)
+					return nil, err
+				}
+			}
+			return c, err
+		},
+		TestOnBorrow: func(c redigo.Conn, t time.Time) error {
+			_, err := c.Do("PING")
+			if err != nil {
+				log.Println("Unable to ping to redis server:", err)
+			}
+			return err
+		},
+	}}
+}
+
+func (p *RedisPool) Do(cmd string, args ...interface{}) (reply interface{}, err error) {
+	conn := pool.Get()
+	defer conn.Close()
+	return conn.Do(cmd, args...)
+}
+
+func (p *RedisPool) GetPool() *redigo.Pool {
+	return pool
+}
+
+func (p *RedisPool) ParseKey(key string, vars []string) (string, error) {
+	arr := strings.Split(key, conf.KeyPlaceholder)
+	actualKey := ""
+	if len(arr) != len(vars)+1 {
+		return "", errors.New("redis/connection.go: Insufficient arguments to parse key")
+	} else {
+		for index, val := range arr {
+			if index == 0 {
+				actualKey = arr[index]
+			} else {
+				actualKey += vars[index-1] + val
+			}
+		}
+	}
+	return getPrefixedKey(actualKey), nil
+}
+
+func (p *RedisPool) getPrefixedKey(key string) string {
+	return conf.KeyPrefix + conf.KeyDelimiter + key
+}
+func (p *RedisPool) StripEnvKey(key string) string {
+	return strings.TrimLeft(key, conf.KeyPrefix+conf.KeyDelimiter)
+}
+func (p *RedisPool) SplitKey(key string) []string {
+	return strings.Split(key, conf.KeyDelimiter)
+}
+func (p *RedisPool) Expire(key string, ttl int) (interface{}, error) {
+	return Do("EXPIRE", key, ttl)
+}
+func (p *RedisPool) Persist(key string) (interface{}, error) {
+	return Do("PERSIST", key)
+}
+
+func (p *RedisPool) Del(key string) (interface{}, error) {
+	return Do("DEL", key)
+}
+func (p *RedisPool) Set(key string, data interface{}) (interface{}, error) {
+	// set
+	return Do("SET", key, data)
+}
+func (p *RedisPool) SetNX(key string, data interface{}) (interface{}, error) {
+	return Do("SETNX", key, data)
+}
+func (p *RedisPool) SetEx(key string, data interface{}, ttl int) (interface{}, error) {
+	return Do("SETEX", key, ttl, data)
+}
+func (p *RedisPool) Get(key string) (interface{}, error) {
+	// get
+	return Do("GET", key)
+}
+func (p *RedisPool) GetStringMap(key string) (map[string]string, error) {
+	// get
+	return redigo.StringMap(Do("GET", key))
+}
+
+func (p *RedisPool) GetTTL(key string) (time.Duration, error) {
+	ttl, err := redigo.Int64(Do("TTL", key))
+	return time.Duration(ttl) * time.Second, err
+}
+func (p *RedisPool) GetBytes(key string) ([]byte, error) {
+	return redigo.Bytes(Do("GET", key))
+}
+func (p *RedisPool) GetString(key string) (string, error) {
+	return redigo.String(Do("GET", key))
+}
+func (p *RedisPool) GetInt(key string) (int, error) {
+	return redigo.Int(Do("GET", key))
+}
+func (p *RedisPool) GetStringLength(key string) (int, error) {
+	return redigo.Int(Do("STRLEN", key))
+}
+func (p *RedisPool) ZAdd(key string, score float64, data interface{}) (interface{}, error) {
+	return Do("ZADD", key, score, data)
+}
+func (p *RedisPool) ZRem(key string, data interface{}) (interface{}, error) {
+	return Do("ZREM", key, data)
+}
+func (p *RedisPool) ZRange(key string, start int, end int, withScores bool) ([]interface{}, error) {
+	if withScores {
+		return redigo.Values(Do("ZRANGE", key, start, end, "WITHSCORES"))
+	}
+	return redigo.Values(Do("ZRANGE", key, start, end))
+}
+func (p *RedisPool) SAdd(setName string, data interface{}) (interface{}, error) {
+	return Do("SADD", setName, data)
+}
+func (p *RedisPool) SCard(setName string) (int64, error) {
+	return redigo.Int64(Do("SCARD", setName))
+}
+func (p *RedisPool) SIsMember(setName string, data interface{}) (bool, error) {
+	return redigo.Bool(Do("SISMEMBER", setName, data))
+}
+func (p *RedisPool) SMembers(setName string) ([]string, error) {
+	return redigo.Strings(Do("SMEMBERS", setName))
+}
+func (p *RedisPool) SRem(setName string, data interface{}) (interface{}, error) {
+	return Do("SREM", setName, data)
+}
+func (p *RedisPool) HSet(key string, HKey string, data interface{}) (interface{}, error) {
+	return Do("HSET", key, HKey, data)
+}
+
+func (p *RedisPool) HGet(key string, HKey string) (interface{}, error) {
+	return Do("HGET", key, HKey)
+}
+
+func (p *RedisPool) HMGet(key string, hashKeys ...string) ([]interface{}, error) {
+	ret, err := Do("HMGET", key, hashKeys)
+	if err != nil {
+		return nil, err
+	}
+	reta, ok := ret.([]interface{})
+	if !ok {
+		return nil, errors.New("result not an array")
+	}
+	return reta, nil
+}
+
+func (p *RedisPool) HMSet(key string, hashKeys []string, vals []interface{}) (interface{}, error) {
+	if len(hashKeys) == 0 || len(hashKeys) != len(vals) {
+		var ret interface{}
+		return ret, errors.New("bad length")
+	}
+	input := []interface{}{key}
+	for i, v := range hashKeys {
+		input = append(input, v, vals[i])
+	}
+	return Do("HMSET", input...)
+}
+
+func (p *RedisPool) HGetString(key string, HKey string) (string, error) {
+	return redigo.String(Do("HGET", key, HKey))
+}
+func (p *RedisPool) HGetFloat(key string, HKey string) (float64, error) {
+	f, err := redigo.Float64(Do("HGET", key, HKey))
+	return float64(f), err
+}
+func (p *RedisPool) HGetInt(key string, HKey string) (int, error) {
+	return redigo.Int(Do("HGET", key, HKey))
+}
+func (p *RedisPool) HGetInt64(key string, HKey string) (int64, error) {
+	return redigo.Int64(Do("HGET", key, HKey))
+}
+func (p *RedisPool) HGetBool(key string, HKey string) (bool, error) {
+	return redigo.Bool(Do("HGET", key, HKey))
+}
+func (p *RedisPool) HDel(key string, HKey string) (interface{}, error) {
+	return Do("HDEL", key, HKey)
+}
+func (p *RedisPool) HGetAll(key string) (map[string]interface{}, error) {
+	vals, err := redigo.Values(Do("HGETALL", key))
+	if err != nil {
+		return nil, err
+	}
+	num := len(vals) / 2
+	result := make(map[string]interface{}, num)
+	for i := 0; i < num; i++ {
+		key, _ := redigo.String(vals[2*i], nil)
+		result[key] = vals[2*i+1]
+	}
+	return result, nil
+}
+
+// NOTE: Use this in production environment with extreme care.
+// Read more here:https://redigo.io/commands/keys
+func (p *RedisPool) Keys(pattern string) ([]string, error) {
+	return redigo.Strings(Do("KEYS", pattern))
+}
+
+func (p *RedisPool) HKeys(key string) ([]string, error) {
+	return redigo.Strings(Do("HKEYS", key))
+}
+
+func (p *RedisPool) Exists(key string) (bool, error) {
+	count, err := redigo.Int(Do("EXISTS", key))
+	if count == 0 {
+		return false, err
+	} else {
+		return true, err
+	}
+}
+
+func (p *RedisPool) Incr(key string) (int64, error) {
+	return redigo.Int64(Do("INCR", key))
+}
+
+func (p *RedisPool) Decr(key string) (int64, error) {
+	return redigo.Int64(Do("DECR", key))
+}
+
+func (p *RedisPool) IncrBy(key string, incBy int64) (int64, error) {
+	return redigo.Int64(Do("INCRBY", key, incBy))
+}
+
+func (p *RedisPool) DecrBy(key string, decrBy int64) (int64, error) {
+	return redigo.Int64(Do("DECRBY", key))
+}
+
+func (p *RedisPool) IncrByFloat(key string, incBy float64) (float64, error) {
+	return redigo.Float64(Do("INCRBYFLOAT", key, incBy))
+}
+
+func (p *RedisPool) DecrByFloat(key string, decrBy float64) (float64, error) {
+	return redigo.Float64(Do("DECRBYFLOAT", key, decrBy))
+}
+
+// use for message queue
+func (p *RedisPool) LPush(key string, data interface{}) (interface{}, error) {
+	// set
+	return Do("LPUSH", key, data)
+}
+
+func (p *RedisPool) LPop(key string) (interface{}, error) {
+	return Do("LPOP", key)
+}
+
+func (p *RedisPool) LPopString(key string) (string, error) {
+	return redigo.String(Do("LPOP", key))
+}
+func (p *RedisPool) LPopFloat(key string) (float64, error) {
+	f, err := redigo.Float64(Do("LPOP", key))
+	return float64(f), err
+}
+func (p *RedisPool) LPopInt(key string) (int, error) {
+	return redigo.Int(Do("LPOP", key))
+}
+func (p *RedisPool) LPopInt64(key string) (int64, error) {
+	return redigo.Int64(Do("LPOP", key))
+}
+
+func (p *RedisPool) RPush(key string, data interface{}) (interface{}, error) {
+	// set
+	return Do("RPUSH", key, data)
+}
+
+func (p *RedisPool) RPop(key string) (interface{}, error) {
+	return Do("RPOP", key)
+}
+
+func (p *RedisPool) RPopString(key string) (string, error) {
+	return redigo.String(Do("RPOP", key))
+}
+func (p *RedisPool) RPopFloat(key string) (float64, error) {
+	f, err := redigo.Float64(Do("RPOP", key))
+	return float64(f), err
+}
+func (p *RedisPool) RPopInt(key string) (int, error) {
+	return redigo.Int(Do("RPOP", key))
+}
+func (p *RedisPool) RPopInt64(key string) (int64, error) {
+	return redigo.Int64(Do("RPOP", key))
+}
+
+func (p *RedisPool) Scan(cursor int64, pattern string, count int64) (int64, []string, error) {
+	var items []string
+	var newCursor int64
+
+	values, err := redigo.Values(Do("SCAN", cursor, "MATCH", pattern, "COUNT", count))
+	if err != nil {
+		return 0, nil, err
+	}
+	values, err = redigo.Scan(values, &newCursor, &items)
+	if err != nil {
+		return 0, nil, err
+	}
+
+	return newCursor, items, nil
+}

utils/cache/redis_pool_cluster.go

@@ -0,0 +1,617 @@
+package cache
+
+import (
+	"strconv"
+	"time"
+
+	"github.com/go-redis/redis"
+)
+
+type RedisClusterPool struct {
+	client *redis.ClusterClient
+}
+
+func NewRedisClusterPool(addrs []string) (*RedisClusterPool, error) {
+	opt := &redis.ClusterOptions{
+		Addrs:        addrs,
+		PoolSize:     512,
+		PoolTimeout:  10 * time.Second,
+		IdleTimeout:  10 * time.Second,
+		DialTimeout:  10 * time.Second,
+		ReadTimeout:  3 * time.Second,
+		WriteTimeout: 3 * time.Second,
+	}
+	c := redis.NewClusterClient(opt)
+	if err := c.Ping().Err(); err != nil {
+		return nil, err
+	}
+	return &RedisClusterPool{client: c}, nil
+}
+
+func (p *RedisClusterPool) Get(key string) (interface{}, error) {
+	res, err := p.client.Get(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return []byte(res), nil
+}
+func (p *RedisClusterPool) Set(key string, value interface{}) error {
+	err := p.client.Set(key, value, 0).Err()
+	return convertError(err)
+}
+func (p *RedisClusterPool) GetSet(key string, value interface{}) (interface{}, error) {
+	res, err := p.client.GetSet(key, value).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return []byte(res), nil
+}
+func (p *RedisClusterPool) SetNx(key string, value interface{}) (int64, error) {
+	res, err := p.client.SetNX(key, value, 0).Result()
+	if err != nil {
+		return 0, convertError(err)
+	}
+	if res {
+		return 1, nil
+	}
+	return 0, nil
+}
+func (p *RedisClusterPool) SetEx(key string, value interface{}, timeout int64) error {
+	_, err := p.client.Set(key, value, time.Duration(timeout)*time.Second).Result()
+	if err != nil {
+		return convertError(err)
+	}
+	return nil
+}
+
+// nil表示成功，ErrNil表示数据库内已经存在这个key，其他表示数据库发生错误
+func (p *RedisClusterPool) SetNxEx(key string, value interface{}, timeout int64) error {
+	res, err := p.client.SetNX(key, value, time.Duration(timeout)*time.Second).Result()
+	if err != nil {
+		return convertError(err)
+	}
+	if res {
+		return nil
+	}
+	return ErrNil
+}
+func (p *RedisClusterPool) MGet(keys ...string) ([]interface{}, error) {
+	res, err := p.client.MGet(keys...).Result()
+	return res, convertError(err)
+}
+
+// 为确保多个key映射到同一个slot，每个key最好加上hash tag，如:{test}
+func (p *RedisClusterPool) MSet(kvs map[string]interface{}) error {
+	pairs := make([]string, 0, len(kvs)*2)
+	for k, v := range kvs {
+		val, err := String(v, nil)
+		if err != nil {
+			return err
+		}
+		pairs = append(pairs, k, val)
+	}
+	return convertError(p.client.MSet(pairs).Err())
+}
+
+// 为确保多个key映射到同一个slot，每个key最好加上hash tag，如:{test}
+func (p *RedisClusterPool) MSetNX(kvs map[string]interface{}) (bool, error) {
+	pairs := make([]string, 0, len(kvs)*2)
+	for k, v := range kvs {
+		val, err := String(v, nil)
+		if err != nil {
+			return false, err
+		}
+		pairs = append(pairs, k, val)
+	}
+	res, err := p.client.MSetNX(pairs).Result()
+	return res, convertError(err)
+}
+func (p *RedisClusterPool) ExpireAt(key string, timestamp int64) (int64, error) {
+	res, err := p.client.ExpireAt(key, time.Unix(timestamp, 0)).Result()
+	if err != nil {
+		return 0, convertError(err)
+	}
+	if res {
+		return 1, nil
+	}
+	return 0, nil
+}
+func (p *RedisClusterPool) Del(keys ...string) (int64, error) {
+	args := make([]interface{}, 0, len(keys))
+	for _, key := range keys {
+		args = append(args, key)
+	}
+	res, err := p.client.Del(keys...).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) Incr(key string) (int64, error) {
+	res, err := p.client.Incr(key).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) IncrBy(key string, delta int64) (int64, error) {
+	res, err := p.client.IncrBy(key, delta).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) Expire(key string, duration int64) (int64, error) {
+	res, err := p.client.Expire(key, time.Duration(duration)*time.Second).Result()
+	if err != nil {
+		return 0, convertError(err)
+	}
+	if res {
+		return 1, nil
+	}
+	return 0, nil
+}
+func (p *RedisClusterPool) Exists(key string) (bool, error) { // todo (bool, error)
+	res, err := p.client.Exists(key).Result()
+	if err != nil {
+		return false, convertError(err)
+	}
+	if res > 0 {
+		return true, nil
+	}
+	return false, nil
+}
+func (p *RedisClusterPool) HGet(key string, field string) (interface{}, error) {
+	res, err := p.client.HGet(key, field).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return []byte(res), nil
+}
+func (p *RedisClusterPool) HLen(key string) (int64, error) {
+	res, err := p.client.HLen(key).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) HSet(key string, field string, val interface{}) error {
+	value, err := String(val, nil)
+	if err != nil && err != ErrNil {
+		return err
+	}
+	_, err = p.client.HSet(key, field, value).Result()
+	if err != nil {
+		return convertError(err)
+	}
+	return nil
+}
+func (p *RedisClusterPool) HDel(key string, fields ...string) (int64, error) {
+	args := make([]interface{}, 0, len(fields)+1)
+	args = append(args, key)
+	for _, field := range fields {
+		args = append(args, field)
+	}
+	res, err := p.client.HDel(key, fields...).Result()
+	if err != nil {
+		return 0, convertError(err)
+	}
+	return res, nil
+}
+
+func (p *RedisClusterPool) HMGet(key string, fields ...string) (interface{}, error) {
+	args := make([]interface{}, 0, len(fields)+1)
+	args = append(args, key)
+	for _, field := range fields {
+		args = append(args, field)
+	}
+	if len(fields) == 0 {
+		return nil, ErrNil
+	}
+	res, err := p.client.HMGet(key, fields...).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) HMSet(key string, kvs ...interface{}) error {
+	if len(kvs) == 0 {
+		return nil
+	}
+	if len(kvs)%2 != 0 {
+		return ErrWrongArgsNum
+	}
+	var err error
+	v := map[string]interface{}{} // todo change
+	v["field"], err = String(kvs[0], nil)
+	if err != nil && err != ErrNil {
+		return err
+	}
+	v["value"], err = String(kvs[1], nil)
+	if err != nil && err != ErrNil {
+		return err
+	}
+	pairs := make([]string, 0, len(kvs)-2)
+	if len(kvs) > 2 {
+		for _, kv := range kvs[2:] {
+			kvString, err := String(kv, nil)
+			if err != nil && err != ErrNil {
+				return err
+			}
+			pairs = append(pairs, kvString)
+		}
+	}
+	v["paris"] = pairs
+	_, err = p.client.HMSet(key, v).Result()
+	if err != nil {
+		return convertError(err)
+	}
+	return nil
+}
+
+func (p *RedisClusterPool) HKeys(key string) ([]string, error) {
+	res, err := p.client.HKeys(key).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) HVals(key string) ([]interface{}, error) {
+	res, err := p.client.HVals(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	rs := make([]interface{}, 0, len(res))
+	for _, res := range res {
+		rs = append(rs, res)
+	}
+	return rs, nil
+}
+func (p *RedisClusterPool) HGetAll(key string) (map[string]string, error) {
+	vals, err := p.client.HGetAll(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return vals, nil
+}
+func (p *RedisClusterPool) HIncrBy(key, field string, delta int64) (int64, error) {
+	res, err := p.client.HIncrBy(key, field, delta).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) ZAdd(key string, kvs ...interface{}) (int64, error) {
+	args := make([]interface{}, 0, len(kvs)+1)
+	args = append(args, key)
+	args = append(args, kvs...)
+	if len(kvs) == 0 {
+		return 0, nil
+	}
+	if len(kvs)%2 != 0 {
+		return 0, ErrWrongArgsNum
+	}
+	zs := make([]redis.Z, len(kvs)/2)
+	for i := 0; i < len(kvs); i += 2 {
+		idx := i / 2
+		score, err := Float64(kvs[i], nil)
+		if err != nil && err != ErrNil {
+			return 0, err
+		}
+		zs[idx].Score = score
+		zs[idx].Member = kvs[i+1]
+	}
+	res, err := p.client.ZAdd(key, zs...).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) ZRem(key string, members ...string) (int64, error) {
+	args := make([]interface{}, 0, len(members))
+	args = append(args, key)
+	for _, member := range members {
+		args = append(args, member)
+	}
+	res, err := p.client.ZRem(key, members).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, err
+}
+
+func (p *RedisClusterPool) ZRange(key string, min, max int64, withScores bool) (interface{}, error) {
+	res := make([]interface{}, 0)
+	if withScores {
+		zs, err := p.client.ZRangeWithScores(key, min, max).Result()
+		if err != nil {
+			return nil, convertError(err)
+		}
+		for _, z := range zs {
+			res = append(res, z.Member, strconv.FormatFloat(z.Score, 'f', -1, 64))
+		}
+	} else {
+		ms, err := p.client.ZRange(key, min, max).Result()
+		if err != nil {
+			return nil, convertError(err)
+		}
+		for _, m := range ms {
+			res = append(res, m)
+		}
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) ZRangeByScoreWithScore(key string, min, max int64) (map[string]int64, error) {
+	opt := new(redis.ZRangeBy)
+	opt.Min = strconv.FormatInt(int64(min), 10)
+	opt.Max = strconv.FormatInt(int64(max), 10)
+	opt.Count = -1
+	opt.Offset = 0
+	vals, err := p.client.ZRangeByScoreWithScores(key, *opt).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	res := make(map[string]int64, len(vals))
+	for _, val := range vals {
+		key, err := String(val.Member, nil)
+		if err != nil && err != ErrNil {
+			return nil, err
+		}
+		res[key] = int64(val.Score)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) LRange(key string, start, stop int64) (interface{}, error) {
+	res, err := p.client.LRange(key, start, stop).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) LSet(key string, index int, value interface{}) error {
+	err := p.client.LSet(key, int64(index), value).Err()
+	return convertError(err)
+}
+func (p *RedisClusterPool) LLen(key string) (int64, error) {
+	res, err := p.client.LLen(key).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) LRem(key string, count int, value interface{}) (int, error) {
+	val, _ := value.(string)
+	res, err := p.client.LRem(key, int64(count), val).Result()
+	if err != nil {
+		return int(res), convertError(err)
+	}
+	return int(res), nil
+}
+func (p *RedisClusterPool) TTl(key string) (int64, error) {
+	duration, err := p.client.TTL(key).Result()
+	if err != nil {
+		return int64(duration.Seconds()), convertError(err)
+	}
+	return int64(duration.Seconds()), nil
+}
+func (p *RedisClusterPool) LPop(key string) (interface{}, error) {
+	res, err := p.client.LPop(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) RPop(key string) (interface{}, error) {
+	res, err := p.client.RPop(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) BLPop(key string, timeout int) (interface{}, error) {
+	res, err := p.client.BLPop(time.Duration(timeout)*time.Second, key).Result()
+	if err != nil {
+		// 兼容redis 2.x
+		if err == redis.Nil {
+			return nil, ErrNil
+		}
+		return nil, err
+	}
+	return res[1], nil
+}
+func (p *RedisClusterPool) BRPop(key string, timeout int) (interface{}, error) {
+	res, err := p.client.BRPop(time.Duration(timeout)*time.Second, key).Result()
+	if err != nil {
+		// 兼容redis 2.x
+		if err == redis.Nil {
+			return nil, ErrNil
+		}
+		return nil, convertError(err)
+	}
+	return res[1], nil
+}
+func (p *RedisClusterPool) LPush(key string, value ...interface{}) error {
+	args := make([]interface{}, 0, len(value)+1)
+	args = append(args, key)
+	args = append(args, value...)
+	vals := make([]string, 0, len(value))
+	for _, v := range value {
+		val, err := String(v, nil)
+		if err != nil && err != ErrNil {
+			return err
+		}
+		vals = append(vals, val)
+	}
+	_, err := p.client.LPush(key, vals).Result() // todo ...
+	if err != nil {
+		return convertError(err)
+	}
+	return nil
+}
+func (p *RedisClusterPool) RPush(key string, value ...interface{}) error {
+	args := make([]interface{}, 0, len(value)+1)
+	args = append(args, key)
+	args = append(args, value...)
+	vals := make([]string, 0, len(value))
+	for _, v := range value {
+		val, err := String(v, nil)
+		if err != nil && err != ErrNil {
+			if err == ErrNil {
+				continue
+			}
+			return err
+		}
+		if val == "" {
+			continue
+		}
+		vals = append(vals, val)
+	}
+	_, err := p.client.RPush(key, vals).Result() // todo ...
+	if err != nil {
+		return convertError(err)
+	}
+	return nil
+}
+
+// 为确保srcKey跟destKey映射到同一个slot，srcKey和destKey需要加上hash tag，如:{test}
+func (p *RedisClusterPool) BRPopLPush(srcKey string, destKey string, timeout int) (interface{}, error) {
+	res, err := p.client.BRPopLPush(srcKey, destKey, time.Duration(timeout)*time.Second).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+
+// 为确保srcKey跟destKey映射到同一个slot，srcKey和destKey需要加上hash tag，如:{test}
+func (p *RedisClusterPool) RPopLPush(srcKey string, destKey string) (interface{}, error) {
+	res, err := p.client.RPopLPush(srcKey, destKey).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) SAdd(key string, members ...interface{}) (int64, error) {
+	args := make([]interface{}, 0, len(members)+1)
+	args = append(args, key)
+	args = append(args, members...)
+	ms := make([]string, 0, len(members))
+	for _, member := range members {
+		m, err := String(member, nil)
+		if err != nil && err != ErrNil {
+			return 0, err
+		}
+		ms = append(ms, m)
+	}
+	res, err := p.client.SAdd(key, ms).Result() // todo ...
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) SPop(key string) ([]byte, error) {
+	res, err := p.client.SPop(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return []byte(res), nil
+}
+func (p *RedisClusterPool) SIsMember(key string, member interface{}) (bool, error) {
+	m, _ := member.(string)
+	res, err := p.client.SIsMember(key, m).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) SRem(key string, members ...interface{}) (int64, error) {
+	args := make([]interface{}, 0, len(members)+1)
+	args = append(args, key)
+	args = append(args, members...)
+	ms := make([]string, 0, len(members))
+	for _, member := range members {
+		m, err := String(member, nil)
+		if err != nil && err != ErrNil {
+			return 0, err
+		}
+		ms = append(ms, m)
+	}
+	res, err := p.client.SRem(key, ms).Result() // todo ...
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) SMembers(key string) ([]string, error) {
+	res, err := p.client.SMembers(key).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) ScriptLoad(luaScript string) (interface{}, error) {
+	res, err := p.client.ScriptLoad(luaScript).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) EvalSha(sha1 string, numberKeys int, keysArgs ...interface{}) (interface{}, error) {
+	vals := make([]interface{}, 0, len(keysArgs)+2)
+	vals = append(vals, sha1, numberKeys)
+	vals = append(vals, keysArgs...)
+	keys := make([]string, 0, numberKeys)
+	args := make([]string, 0, len(keysArgs)-numberKeys)
+	for i, value := range keysArgs {
+		val, err := String(value, nil)
+		if err != nil && err != ErrNil {
+			return nil, err
+		}
+		if i < numberKeys {
+			keys = append(keys, val)
+		} else {
+			args = append(args, val)
+		}
+	}
+	res, err := p.client.EvalSha(sha1, keys, args).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) Eval(luaScript string, numberKeys int, keysArgs ...interface{}) (interface{}, error) {
+	vals := make([]interface{}, 0, len(keysArgs)+2)
+	vals = append(vals, luaScript, numberKeys)
+	vals = append(vals, keysArgs...)
+	keys := make([]string, 0, numberKeys)
+	args := make([]string, 0, len(keysArgs)-numberKeys)
+	for i, value := range keysArgs {
+		val, err := String(value, nil)
+		if err != nil && err != ErrNil {
+			return nil, err
+		}
+		if i < numberKeys {
+			keys = append(keys, val)
+		} else {
+			args = append(args, val)
+		}
+	}
+	res, err := p.client.Eval(luaScript, keys, args).Result()
+	if err != nil {
+		return nil, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) GetBit(key string, offset int64) (int64, error) {
+	res, err := p.client.GetBit(key, offset).Result()
+	if err != nil {
+		return res, convertError(err)
+	}
+	return res, nil
+}
+func (p *RedisClusterPool) SetBit(key string, offset uint32, value int) (int, error) {
+	res, err := p.client.SetBit(key, int64(offset), value).Result()
+	return int(res), convertError(err)
+}
+func (p *RedisClusterPool) GetClient() *redis.ClusterClient {
+	return pools
+}