老师你好，有关于go tcp socket编程方面的实例吗？分享一个

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问题内容

老师你好，有关于go tcp socket编程方面的实例吗？分享一个

正确答案

socket client

// socket-client project main.go
package main
import (
        "fmt"
        "net"
)
const (
        SERVER_HOST = "localhost"
        SERVER_PORT = "9988"
        SERVER_TYPE = "tcp"
)
func main() {
        //establish connection
        connection, err := net.Dial(SERVER_TYPE, SERVER_HOST+":"+SERVER_PORT)
        if err != nil {
                panic(err)
        }
        ///send some data
        _, err = connection.Write([]byte("Hello Server! Greetings."))
        buffer := make([]byte, 1024)
        mLen, err := connection.Read(buffer)
        if err != nil {
                fmt.Println("Error reading:", err.Error())
        }
        fmt.Println("Received: ", string(buffer[:mLen]))
        defer connection.Close()
}

socket server

// socket-server project main.go
package main
import (
        "fmt"
        "net"
        "os"
)
const (
        SERVER_HOST = "localhost"
        SERVER_PORT = "9988"
        SERVER_TYPE = "tcp"
)
func main() {
        fmt.Println("Server Running...")
        server, err := net.Listen(SERVER_TYPE, SERVER_HOST+":"+SERVER_PORT)
        if err != nil {
                fmt.Println("Error listening:", err.Error())
                os.Exit(1)
        }
        defer server.Close()
        fmt.Println("Listening on " + SERVER_HOST + ":" + SERVER_PORT)
        fmt.Println("Waiting for client...")
        for {
                connection, err := server.Accept()
                if err != nil {
                        fmt.Println("Error accepting: ", err.Error())
                        os.Exit(1)
                }
                fmt.Println("client connected")
                go processClient(connection)
        }
}
func processClient(connection net.Conn) {
        buffer := make([]byte, 1024)
        mLen, err := connection.Read(buffer)
        if err != nil {
                fmt.Println("Error reading:", err.Error())
        }
        fmt.Println("Received: ", string(buffer[:mLen]))
        _, err = connection.Write([]byte("Thanks! Got your message:" + string(buffer[:mLen])))
        connection.Close()
}

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