smart_canteen/main_back.go

package main

import (
	"applet/app/db"
	"applet/app/db/model"
	"context"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"
	"syscall"
	"time"

	"applet/app/cfg"
	"applet/app/router"
)

func main1() {
	var m []model.CentralKitchenForSchoolUserRefundDay
	if err := db.Db.Where("1=1").Desc("id").Find(&m); err != nil {
		fmt.Println(err)
	}
	var alreadyIds = map[int]bool{}
	for _, v := range m {
		if v.State != 3 && !alreadyIds[v.Id] {
			var mm []model.CentralKitchenForSchoolUserRefundDay
			if err := db.Db.Where("records_id = ?", v.RecordsId).And("state != 3").And("id != ?", v.Id).Find(&mm); err != nil {
				fmt.Println(err)
			}
			var ids []int
			for _, vv := range mm {
				if vv.State == 4 {
					if v.State == 4 {
						fmt.Println(v, vv)
					}
					ids = append(ids, v.Id)
					alreadyIds[v.Id] = true
				} else {
					ids = append(ids, vv.Id)
					alreadyIds[vv.Id] = true
				}
			}
			if len(ids) > 0 {
				db.Db.In("id", ids).Delete(model.CentralKitchenForSchoolUserRefundDay{})
			}
		}

	}
	r := router.Init() //创建路由

	srv := &http.Server{ //设置http服务参数
		Addr:    cfg.SrvAddr, //指定ip和端口
		Handler: r,           //指定路由
	}

	go func() { //协程启动监听http服务
		fmt.Println("Listening and serving HTTP on " + cfg.SrvAddr)
		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatalf("listen: %s\n", err)
		}
	}()

	//退出go守护进程
	quit := make(chan os.Signal)
	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
	<-quit
	log.Println("Shutting down server...")
	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()
	if err := srv.Shutdown(ctx); err != nil {
		log.Fatal("Server forced to shutdown:", err)
	}
	log.Println("Server exiting")

}