【Socket 通信编程】【TCP双向通信线程池】

深碍√TFBOYSˉ_ 2022-02-19 13:09 285阅读 0赞

客户端不变，线程池的设置在服务器上

/* 服务器端 */
    import java.io.*;
    import java.net.*;
    import java.util.concurrent.*;
    public class TCPThreadPoolServer {
    	static int port = 2019;
    	static int poolSize = 50;
    	public static void main(String args[]) throws Exception{
    		ServerSocket server = new ServerSocket(port);
    		System.out.println("服务器正在监听端口号<" + port + ">");	
    		// 设置线程池
    		ExecutorService threadPool = Executors.newFixedThreadPool(poolSize);
    		while (true) {
    			// 监听到客户端
    			Socket socket = server.accept();
    			Runnable runnable=()-> {
    				String line = null;
    				InputStream input = null;
    				OutputStream output = null;
    				BufferedReader bf = null;
    				PrintWriter out = null;
    				try {
    					input = socket.getInputStream();
    					output = socket.getOutputStream();
    					bf = new BufferedReader(new InputStreamReader(input));
    					out = new PrintWriter(output);
    					while((line=bf.readLine())!=null) {
    						System.out.println("来自客户端的消息: " + line);
    						// 向客户端发送确认消息
    						out.println(line);
    						out.flush();
    					}
    				} catch (IOException e) {
    					// e.printStackTrace();
    					System.out.println("客户端已断开与服务器的连接");
    				} 
    			};
    			threadPool.submit(runnable);
    		}
    	}
    }
    /* 客户端 */
    import java.net.*;
    import java.io.*;
    public class Client {
    	// 定义端口和IP地址
    	static int port = 2019; 
    	static String IP = "127.0.0.1"; 
    	public static void main(String args[]) throws Exception {
    		// 定义客户端输入和服务器响应
    		String userInput = null; 
    		String echoMessage = null;
    		
    		// 将键盘输入读入缓冲区stdIn
    		BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
    		// 定义客户端套接字
    		Socket socket = new Socket(IP, port);
    		System.out.println("已连接到服务器...");
    		
    		// 客户端套接字上的getInputStream方法得到的输入流是从服务器端发回的数据
    		InputStream inStream = socket.getInputStream();
    		// 客户端套接字上的getOutputStream方法得到的输出流是发给服务器端的数据
    		OutputStream outStream = socket.getOutputStream();
    		
    		// 将服务器端发回的数据读入缓冲区in
    		BufferedReader in = new BufferedReader(new InputStreamReader(inStream));
    		// 定义向服务器发送数据流的对象out
    		PrintWriter out = new PrintWriter(outStream);
    		while((userInput = stdIn.readLine())!=null) {
    			// 向服务器打印数据
                out.println(userInput);
    			// flush方法的作用是刷新缓冲区
    			out.flush();
    			echoMessage = in.readLine();
    			System.out.println("服务器已收到消息: " + echoMessage);
    		}
    		socket.close();
    	}
    }

测试结果

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0RYSDkyNA_size_16_color_FFFFFF_t_70][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0RYSDkyNA_size_16_color_FFFFFF_t_70]: /images/20220219/a8fb99bf12ba4e8f8697b713f28721e6.png