一個簡單的支持多併發的socket服務/客戶端

代碼實戰

ServerBoot啓動類

package com.example.demo.server;

/**
 * @author  MySelf
 * @create  2018/9/29
 * @desc 服務啓動類
 **/
public class ServerBoot {

    private static final int PORT = 8000;

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

}

Server監聽端口服務類

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監聽端口主服務
 **/
public class Server {

    private ServerSocket serverSocket;

    /**
     * 監聽端口
     * @param port
     */
    public Server(int port){
        try {
            this.serverSocket = new ServerSocket(port);
            System.out.println("服務端啓動成功，端口："+port);
        }catch (IOException e){
            System.out.println("服務端啓動失敗");
        }
    }

    /**
     * 線程模式，防止註釋
     */
    public void start(){
        new Thread(new Runnable() {
            @Override
            public void run() {
                doStart();
            }
        }).start();
    }

    /**
     * 啓動客戶端接受
     */
    private void doStart() {
        while (true){
            try {
                Socket client = serverSocket.accept();
                new ClientHandler(client).start();
            }catch (IOException e){
                System.out.println("服務端異常");
            }
        }
    }

}

ClientHandler客戶端接入監聽類

package com.example.demo.server;

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

/**
 * @author  MySelf
 * @create  2018/9/29
 * @desc 客戶端接入監聽類
 **/
public class ClientHandler {

    /** 數據連接值 */
    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("新客戶端接入");
        new Thread(new Runnable() {
            @Override
            public void run() {
                doStart();
            }
        }).start();
    }

    /**
     * 對客戶端的業務處理，接收並重寫回去
     */
    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("客戶端傳來消息："+message);
                    socket.getOutputStream().write(data);
                }
            }
        }catch (IOException e){
            e.printStackTrace();
        }
    }

}

Client客戶端啓動類

package com.example.demo.client;

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

/**
 * @author  MySelf
 * @create  2018/9/29
 * @desc 客戶端啓動類
 **/
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);

        /**
         * 客戶端啓動，定時向服務端發送數據
         */
        new Thread(new Runnable() {
            @Override
            public void run() {
                System.out.println("客戶端啓動成功！");
                while (true){
                    try {
                        String message = "hello world";
                        System.out.println("客戶端發送數據："+message);
                        socket.getOutputStream().write(message.getBytes());
                    }catch (Exception e){
                        System.out.println("寫數據出錯！");
                    }
                    sleep();
                }
            }
        }).start();
    }

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

}

相關實戰

GitHub項目：基於Netty4與SpringBoot，聊天室WebSocket（文字圖片）、Iot物聯網-TCP/IP協議單片機通信，異步存儲聊天數據

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