/ server.go /
package main

十余年的南宁网站建设经验，针对设计、前端、开发、售后、文案、推广等六对一服务，响应快，48小时及时工作处理。成都全网营销的优势是能够根据用户设备显示端的尺寸不同，自动调整南宁建站的显示方式，使网站能够适用不同显示终端，在浏览器中调整网站的宽度，无论在任何一种浏览器上浏览网站，都能展现优雅布局与设计，从而大程度地提升浏览体验。创新互联建站从事“南宁网站设计”,“南宁网站推广”以来，每个客户项目都认真落实执行。

import (
"bufio"
"fmt"
"net"
"time"
)

func main() {
var tcpAddr *net.TCPAddr

    tcpAddr, _ = net.ResolveTCPAddr("tcp", "127.0.0.1:9999")

    tcpListener, _ := net.ListenTCP("tcp", tcpAddr)

    defer tcpListener.Close()

    for {
            tcpConn, err := tcpListener.AcceptTCP()
            if err != nil {
                    continue
            }

            fmt.Println("A client connected : " + tcpConn.RemoteAddr().String())
            go tcpPipe(tcpConn)
    }

}

func tcpPipe(conn *net.TCPConn) {
ipStr := conn.RemoteAddr().String()
defer func() {
fmt.Println("disconnected :" + ipStr)
conn.Close()
}()
reader := bufio.NewReader(conn)

    for {
            message, err := reader.ReadString('\n')
            if err != nil {
                    return
            }

            fmt.Println(string(message))
            msg := time.Now().String() + "\n"
            b := []byte(msg)
            conn.Write(b)
    }

}

/client.go /
package main

import (
"bufio"
"fmt"
"net"
"time"
)

var quitSemaphore chan bool

func main() {
var tcpAddr *net.TCPAddr
tcpAddr, _ = net.ResolveTCPAddr("tcp", "127.0.0.1:9999")

    conn, _ := net.DialTCP("tcp", nil, tcpAddr)
    defer conn.Close()
    fmt.Println("connected!")

    go onMessageRecived(conn)

    b := []byte("time\n")
    conn.Write(b)

    <-quitSemaphore

}

func onMessageRecived(conn *net.TCPConn) {
reader := bufio.NewReader(conn)
for {
msg, err := reader.ReadString('\n')
fmt.Println(msg)
if err != nil {
quitSemaphore <- true
break
}
time.Sleep(time.Second)
b := []byte(msg)
conn.Write(b)
}
}

本文题目：go语言实现tcp客户端/服务端
转载源于：http://cdweb.net/article/jhejih.html