Go语言网络通信---一个简单的UDP编程

Server端：

package main

import (
        "fmt"
        "net"
)

func main() {

        //创建udp地址
        udpAddr, _ := net.ResolveUDPAddr("udp", "127.0.0.1:8080")

        //服务端建立监听
        serverConn, _ := net.ListenUDP("udp", udpAddr)
        defer func() {
                serverConn.Close()
                fmt.Println("main over!")
        }()

        //与客户端IO
        buffer := make([]byte, 1024)
        n, remoteAddress, _ := serverConn.ReadFromUDP(buffer)
        contents := buffer[:n]
        fmt.Println("客户端："+string(contents))

        //回复客户端消息
        serverConn.WriteToUDP([]byte("孽障！"),remoteAddress)


}

Client端:

package main

import (
        "fmt"
        "net"
)

func main() {
        conn, _ := net.Dial("udp", "127.0.0.1:8080")
        defer func() {
                conn.Close()
                fmt.Println("客户端已退出")
        }()

        //客户端发起交谈
        conn.Write([]byte("你妹，今天天气不错"))

        //接收服务端消息
        buffer := make([]byte, 1024)
        n, _ := conn.Read(buffer)

        fmt.Println("服务端："+string(buffer[:n]))

}