Java Socket 服务端发送数据 客户端接收数据

package com.thinkgem.wlw.modules.api.test.socket;

/**
 * @Author: zhouhe
 * @Date: 2019/4/8 9:30
 */

import java.io.*;
import java.net.*;

/**
 * 服务端
 * 负责发送数据
 */
public class SocketServerTest {

    private static final int PORT = 5209;


    public static void test() {
        ServerSocket server = null;
        Socket socket = null;
        DataOutputStream out = null;
        try {
            server = new ServerSocket(PORT);
            socket = server.accept();
            out = new DataOutputStream(socket.getOutputStream());
            while (true) {
                Thread.sleep(1000);
                out.writeUTF(getRandomStr());
                out.flush();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }


    private static String getRandomStr() {
        String str = "";
        int ID = (int) (Math.random() * 30);
        int x = (int) (Math.random() * 200);
        int y = (int) (Math.random() * 300);
        int z = (int) (Math.random() * 10);
        str = "ID:" + ID + "/x:" + x + "/y:" + y + "/z:" + z;
        return str;
    }


    public static void main(String[] args) {
        test();
    }
}  

package com.thinkgem.wlw.modules.api.test.socket;

/**
 * @Author: zhouhe
 * @Date: 2019/4/8 9:27
 */

import java.net.*;
import java.io.*;

/**
 * 客户端
 * 负责接收数据
 */
public class SocketClientTest {
    private static final String HOST = "127.0.0.1";
    private static final int PORT = 5209;

    private static void test() {
        Socket socket = null;
        DataInputStream dis = null;
        InputStream is = null;

        try {
            socket = new Socket(HOST, PORT);
            is = socket.getInputStream();
            dis = new DataInputStream(is);
            while (true) {
                System.out.println("receive_msg:" + dis.readUTF());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {

        test();
    }
}