Socket ServerSocket 编程原始版

最新推荐文章于 2025-05-17 16:44:11 发布

郭胜_自强

最新推荐文章于 2025-05-17 16:44:11 发布

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分类专栏： java基础

本文链接：https://blog.youkuaiyun.com/GS2016/article/details/81741321

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本文详细介绍了一个使用Java实现的网络通信程序，包括客户端与服务器的交互过程。通过具体代码示例，展示了如何创建Socket连接，进行数据读写操作，并实现多线程处理，以提升服务器的并发能力。

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package eight16three;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;

public class Client {

	final static String ADDRESS = "127.0.0.1";
	final static int PORT = 8888;
	
	public static void main(String[] args){
		Client c = new Client();
		for(int i =0;i<1200;i++){
			c.client(String.valueOf(i));
		}
	}
	
	public void client(String arg){
		
		Socket socket = null;
		BufferedReader in = null;
		PrintWriter out = null;
		
		try {
			socket = new Socket(ADDRESS,PORT);
			in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
			out = new PrintWriter(socket.getOutputStream(),true);
			
			out.println("client request" + arg);
			System.out.println("client:"+in.readLine());
			
		} catch (UnknownHostException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			if(in != null){
				try {
					in.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if(out != null){
				out.close();
			}
			if(socket != null){
				try {
					socket.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			socket = null;
		}
	}
}

package eight16three;

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

public class Server {

	final static int PORT = 8888;
	
	public static void main(String[] args){
		ServerSocket server = null;
		
		try {
			server = new ServerSocket(PORT);
			System.out.println("server start");
			Socket socket = null;
			HandlerExecutorPool executor = new HandlerExecutorPool(50,100);
			while(true){
				socket = server.accept();
				executor.execute(new ServerHandler(socket));
			}
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			if(server != null){
				try {
					server.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			server = null;
		}
	}
}

package eight16three;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class ServerHandler implements Runnable{

	private Socket socket;

	public ServerHandler(Socket socket) {
		super();
		this.socket = socket;
	}
	
	

	public void run() {
		
		BufferedReader in =null;
		PrintWriter out = null;
		
		try {
			in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
			out = new PrintWriter(socket.getOutputStream(),true);
			String body = null;
			while(true){
				body = in.readLine();
				if(body == null) break;
				System.out.println("client:" + body);
				out.println("server response");
			}
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			if(in != null){
				try {
					in.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if(out != null){
				out.close();
			}
			if(socket != null){
				try {
					socket.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			socket = null;
		}
	}

	
	
}

package eight16three;

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class HandlerExecutorPool {

	private ExecutorService executor;
	public HandlerExecutorPool(int maxPoolSize,int queueSize){
		this.executor = new ThreadPoolExecutor(Runtime.getRuntime().availableProcessors()
				,maxPoolSize,120L,TimeUnit.SECONDS,new ArrayBlockingQueue<Runnable>(queueSize));
	}
	
	public void execute(Runnable task){
		this.executor.execute(task);
	}
}