一个简单的支持多并发的socket服务/客户端

图片描述

代码实战

ServerBoot启动类

package com.example.demo.server;

/**
 * @author  MySelf
 * @create  2018/9/29
 * @desc 服务启动类
 **/
public class ServerBoot {

    private static final int PORT = 8000;

    /**
     * 启动Server类线程
     * @param args
     */
    public static void main(String[] args) {
        Server server = new Server(PORT);
        server.start();
    }

}

Server监听端口服务类

package com.example.demo.server;

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

/**
 * @author  MySelf
 * @create  2018/9/29
 * @desc Server监听端口主服务
 **/
public class Server {

    private ServerSocket serverSocket;

    /**
     * 监听端口
     * @param port
     */
    public Server(int port){
        try {
            this.serverSocket = new ServerSocket(port);
            System.out.println("服务端启动成功,端口:"+port);
        }catch (IOException e){
            System.out.println("服务端启动失败");
        }
    }

    /**
     * 线程模式,防止注释
     */
    public void start(){
        new Thread(new Runnable() {
            @Override
            public void run() {
                doStart();
            }
        }).start();
    }

    /**
     * 启动客户端接受
     */
    private void doStart() {
        while (true){
            try {
                Socket client = serverSocket.accept();
                new ClientHandler(client).start();
            }catch (IOException e){
                System.out.println("服务端异常");
            }
        }
    }

}

ClientHandler客户端接入监听类

package com.example.demo.server;

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

/**
 * @author  MySelf
 * @create  2018/9/29
 * @desc 客户端接入监听类
 **/
public class ClientHandler {

    /** 数据连接值 */
    public static final int MAX_DATA_LEN = 1024;
    private final Socket socket;

    public ClientHandler(Socket socket){
        this.socket = socket;
    }

    public void start(){
        System.out.println("新客户端接入");
        new Thread(new Runnable() {
            @Override
            public void run() {
                doStart();
            }
        }).start();
    }

    /**
     * 对客户端的业务处理,接收并重写回去
     */
    private void doStart(){
        try {
            InputStream inputStream = socket.getInputStream();
            while (true){
                byte[] data = new byte[MAX_DATA_LEN];
                int len;
                while((len = inputStream.read(data)) != -1){
                    String message = new String(data,0,len);
                    System.out.println("客户端传来消息:"+message);
                    socket.getOutputStream().write(data);
                }
            }
        }catch (IOException e){
            e.printStackTrace();
        }
    }

}

Client客户端启动类

package com.example.demo.client;

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

/**
 * @author  MySelf
 * @create  2018/9/29
 * @desc 客户端启动类
 **/
public class Client {

    private static final String HOST = "127.0.0.1";
    private static final int PORT = 8000;
    private static final int SLEEP_TIME = 5000;

    public static void main(String[] args) throws IOException {

        final Socket socket = new Socket(HOST,PORT);

        /**
         * 客户端启动,定时向服务端发送数据
         */
        new Thread(new Runnable() {
            @Override
            public void run() {
                System.out.println("客户端启动成功!");
                while (true){
                    try {
                        String message = "hello world";
                        System.out.println("客户端发送数据:"+message);
                        socket.getOutputStream().write(message.getBytes());
                    }catch (Exception e){
                        System.out.println("写数据出错!");
                    }
                    sleep();
                }
            }
        }).start();
    }

    private static void sleep() {
        try {
            Thread.sleep(SLEEP_TIME);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

}

相关实战

GitHub项目:基于Netty4与SpringBoot,聊天室WebSocket(文字图片)、Iot物联网-TCP/IP协议单片机通信,异步存储聊天数据


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