信号

package main
import (
    "log"
    "net/http"
    "os"
    "os/signal"
)

type webhandler struct {
}

type web2handler struct {
}

func (webhandler) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
    writer.Write([]byte("web1"))
}
func (web2handler) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
    writer.Write([]byte("web2"))
}

func main() {
    c := make(chan os.Signal) //监听信号
    go func() {
        http.ListenAndServe(":9091", webhandler{})
    }()

    go func() {
        http.ListenAndServe(":9092", web2handler{})
    }()

    signal.Notify(c, os.Interrupt) //监听到ctrlc的时候写入c chan，取消阻塞
    s := <-c
    log.Println(s)
}

来自为知笔记(Wiz)