服务器客户端例子

服务器与客户端通信简单例子
服务端代码

// net_serv project main.go
package main

import (
    //    "fmt"
    "io"
    "log"
    "net"
)

func ExampleListener() {
    // Listen on TCP port 2000 on all available unicast and
    // anycast IP addresses of the local system.
    l, err := net.Listen("tcp", ":2000")
    if err != nil {
        log.Fatal(err)
    }
    defer l.Close()
    for {
        // Wait for a connection.
        conn, err := l.Accept()
        if err != nil {
            log.Fatal(err)
        }
        // Handle the connection in a new goroutine.
        // The loop then returns to accepting, so that
        // multiple connections may be served concurrently.
        go func(c net.Conn) {
            // Echo all incoming data.
            io.Copy(c, c)
            // Shut down the connection.
            c.Close()
        }(conn)
    }
}

func main() {
    ExampleListener()
}

客户端代码

// net_cli project main.go
package main

import (
    "bufio"
    "fmt"
    //    "io"
    //    "log"
    "net"
)

func client() {
    conn, err := net.Dial("tcp", "127.0.0.1:2000")
    if err != nil {
        // handle error
    }
    fmt.Fprintf(conn, "GET / HTTP/1.0\r\n\r\n")
    status, err := bufio.NewReader(conn).ReadString('\n')
    fmt.Printf(status)
}

func main() {
    client()
}

运行服务器：

运行客户端