[网络协议]java网络基础1119

TCP通信
sever程序

package com.company;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class severSocket {
    public static void main(String[] args) {
        try {
            ServerSocket server = new ServerSocket(1100);//创建服务器套接字
            System.out.println("服务器启动成功，等待用户接入。。。");
            Socket client = server.accept();//等待接入
            System.out.println("有客户端链接进来，客户端IP"+client.getInetAddress());//获得IP地址
            InputStream input  = client.getInputStream();
            byte[] bt = new byte[1024];
            int len  = input.read(bt);
            String data = new String(bt,0,len);
            System.out.println("客户段发来的数据为："+data);
            client.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

client程序

package com.company;

import java.io.IOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.nio.charset.StandardCharsets;

public class Main {

    public static void main(String[] args) {

        try {
            Socket client = new Socket("127.0.0.1",1100);
            System.out.println("链接成功！");
            OutputStream out = client.getOutputStream();
            String massage = "服务器，您好！我是客户端";
            out.write(massage.getBytes(StandardCharsets.UTF_8));

            client.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
         
    }
}