Go-服务器循环接收客户端消息

client.go

复制package main

import (
	"bufio"
	"fmt"
	"net"
	"os"
	"strings"
)

func main() {
	//连接
	conn, err := net.Dial("tcp", "192.168.0.104:8888")
	if err != nil {
		fmt.Println("client dial err=", err)
		return
	}
	//输入
	reader := bufio.NewReader(os.Stdin) //os.Stdin 代表标准输入[终端]
	for {
		line, err := reader.ReadString('\n')
		if err != nil {
			fmt.Println("readstring err=", err)
		}
		line = strings.Trim(line, " \r\n")
		if line == "exit" {
			fmt.Println("客户端退出..")
			break
		}
		//发送到服务器
		_, err = conn.Write([]byte(line + "\n"))
		if err != nil {
			fmt.Println("conn.Write err=", err)
		}
	}
}

server.go

复制package main

import (
	"fmt"
	"net"
)

func process(conn net.Conn) {
	defer conn.Close()
	for {
		buf := make([]byte, 1024)
		n, err := conn.Read(buf)
		if err != nil {
			fmt.Println("客户端退出")
			return
		}
		fmt.Print(string(buf[:n]))
	}
}

func main() {
	fmt.Println("服务器开始监听....")
	listen, err := net.Listen("tcp", "0.0.0.0:8888")
	if err != nil {
		fmt.Println("listen err=", err)
		return
	}
	defer listen.Close() //延时关闭listen
	for {
		fmt.Println("等待客户端来连接")
		conn, err := listen.Accept()
		if err != nil {
			fmt.Println("Accept() err=", err)
		} else {
			fmt.Printf("Accept() suc con=%v 客户端ip=%v\n", conn, conn.RemoteAddr().String())
		}
		go process(conn)
	}
}