monitor.go

package main

import (

    "fmt"

    "net/http"

)

// 查询监控信息的接口

func statsHandler(w http.ResponseWriter, r *http.Request) {

    _str := ""

    for _, v := range BackendSvrs {

        _str += fmt.Sprintf("Server:%s FailTimes:%d isUp:%t\n", v.identify, v.failTimes, v.isLive)

    }

    fmt.Fprintf(w, "%s", _str)

}

// 初始化监控服务地址

func initStats() {

    Log.Infof("Start monitor on addr %s", Config.Stats)

    go func() {

        http.HandleFunc("/stats", statsHandler)

        http.ListenAndServe(Config.Stats, nil)

    }()

}

monitor.go

原文：http://www.cnblogs.com/zhangboyu/p/7456737.html