Go語言服務器端接收客戶端消息

server.go

package main

import (
	"fmt"
	"net"
)
func process(conn net.Conn) {
	defer conn.Close()
	for {
		buf := make([]byte, 1024)
		fmt.Println("服務器在等待客戶端發送信息"+conn.RemoteAddr().String())
		n, err := conn.Read(buf)
		if err != nil {
			fmt.Printf("服務器端read error =", err)
			return
		}
		// 顯示客戶端發送的內容到服務器的終端
		fmt.Print(string(buf[:n]))
	}
}
func main() {

	listen, err := net.Listen("tcp","0.0.0.0:8888")
	if err != nil {
		fmt.Println("listen err = ", err)
	}
	// 延時關閉
	defer listen.Close()
	for {
		// 等待客戶端鏈接
		fmt.Println("等待客戶端來鏈接")
		con, err := listen.Accept()
		if err != nil {
			fmt.Println("connect err = ", err)
		}
		fmt.Printf("connect success %v, 客戶端IP = %v", con, con.RemoteAddr().String())
		go process(con)
	}
	fmt.Printf("listen = %v", listen)
}

client.go

package main

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

func main() {
	conn, err := net.Dial("tcp", "0.0.0.0:8888")
	if err != nil {
		fmt.Println("client dial err = ", err)
		return
	}

	reader := bufio.NewReader(os.Stdin)
	line, err := reader.ReadString('\n')
	if err != nil {
		fmt.Println("read string err=", err)
	}
	n , err := conn.Write([]byte(line))
	if err != nil {
		fmt.Println("connect write = ", err)
	}

	fmt.Println("客戶端發送了%d的字節, 並退出", n)
}