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main.go
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package main
import (
"context"
"fmt"
"log"
"net/http"
"os"
"os/signal"
"syscall"
"systemMoniter-Server/dao/mysql"
"systemMoniter-Server/logger"
"systemMoniter-Server/models"
"systemMoniter-Server/routes"
"systemMoniter-Server/settings"
"time"
"github.com/spf13/viper"
"go.uber.org/zap"
)
func main() {
//设置东八中文时区
var cstZone = time.FixedZone("CST", 8*3600) // 东八
time.Local = cstZone
//1.加载配置文件
if err := settings.Init(); err != nil {
fmt.Printf("init settings failed err:%v\n", err)
return
}
//2、初始化日志
if err := logger.Init(); err != nil {
fmt.Printf("init logger failed err:%v\n", err)
return
}
defer zap.L().Sync()
//3.初始化mysql连接
if err := mysql.Init(); err != nil {
fmt.Printf("init mysql failed err:%v\n", err)
return
}
mysql.Migrate()
err := mysql.SetOldNodeStatus()
if err != nil {
zap.L().Error("Update node status failed")
}
// //4.初始化Redis连接
// if err := redis.Init(); err != nil {
// fmt.Printf("init redis failed err:%v\n", err)
// return
// }
// defer redis.Close()
//5.注册路由
models.SetConfig()
// basic := local.NewBasic()
// basic.Start()
// defer basic.Stop()
// netSpeed := local.NewNetSpeed()
// netSpeed.Start()
// defer netSpeed.Stop()
// if models.IsOpen == true {
// local.PingValue.IpStatus = false
// p10086 := local.NewPing()
// defer p10086.Stop()
// p10086.RunCM()
// p10010 := local.NewPing()
// defer p10010.Stop()
// p10010.RunCU()
// p189 := local.NewPing()
// defer p189.Stop()
// p189.RunCT()
// }
r := routes.SetUp()
//6.启动服务(优雅关机)
srv := &http.Server{
Addr: fmt.Sprintf(":%d", viper.GetInt("port")),
Handler: r,
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
MaxHeaderBytes: 1 << 20,
}
go func() {
// 开启一个goroutine启动服务
if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Fatalf("listen: %s\n", err)
}
}()
// 等待中断信号来优雅地关闭服务器,为关闭服务器操作设置一个5秒的超时
quit := make(chan os.Signal, 1) // 创建一个接收信号的通道
// kill 默认会发送 syscall.SIGTERM 信号
// kill -2 发送 syscall.SIGINT 信号,我们常用的Ctrl+C就是触发系统SIGINT信号
// kill -9 发送 syscall.SIGKILL 信号,但是不能被捕获,所以不需要添加它
// signal.Notify把收到的 syscall.SIGINT或syscall.SIGTERM 信号转发给quit
signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM) // 此处不会阻塞
<-quit // 阻塞在此,当接收到上述两种信号时才会往下执行
zap.L().Info("Shutdown Server ...")
// 创建一个5秒超时的context
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
// 5秒内优雅关闭服务(将未处理完的请求处理完再关闭服务),超过5秒就超时退出
if err := srv.Shutdown(ctx); err != nil {
zap.L().Fatal("Server Shutdown: ", zap.Error(err))
}
zap.L().Info("Server exiting")
}