java tcp 仿真工具,Java 模拟基于TCP的Socket通信

最新推荐文章于 2025-06-10 22:15:11 发布

鞠腾辉

最新推荐文章于 2025-06-10 22:15:11 发布

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文章标签： java tcp 仿真工具

本文介绍了Java中如何实现多线程服务器和单线程服务器，通过创建ServerSocket监听客户端连接，多线程服务器利用线程池处理每个客户端请求，提高了并发性能。而单线程服务器每次只处理一个客户端请求，效率较低。同时提供了客户端的模拟代码，展示了如何与服务器进行交互。

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效果图：

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单线程服务器

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多线程服务器

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客户端模拟

多线程服务器代码

import java.io.*;

import java.net.InetAddress;

import java.net.ServerSocket;

import java.net.Socket;

public class MutiThreadServer implements Runnable {

Socket socket;

public MutiThreadServer(Socket socket) {

this.socket = socket;

}

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

int count=0;

ServerSocket serverSocket = new ServerSocket(1234);

System.out.println("listening");

while (true){

Socket socket1 = serverSocket.accept();

System.out.println("connected");

new Thread(new MutiThreadServer(socket1)).start();

count++;

System.out.println("客户端的数量："+count);

InetAddress address = socket1.getInetAddress();

System.out.println("当前客户端的IP为："+ address.getHostAddress());

}

@Override

public void run() {

InputStream inputStream=null; //字节输入流

InputStreamReader inputStreamReader=null; //把字节输入流转化为字符输入流

BufferedReader bufferedReader=null; //为输入流添加缓冲

OutputStream outputStream=null;

PrintWriter printWriter=null;

try {

/**

* 获取客户端的输入信息

inputStream = socket.getInputStream();

inputStreamReader = new InputStreamReader(inputStream);

bufferedReader = new BufferedReader(inputStreamReader);

String info = null;

while ((info = bufferedReader.readLine()) != null){

System.out.println("我是服务器，收到客户端信息："+info);

}

socket.shutdownInput(); //关闭输入流

/**

* 响应客户端

//获取输出流，用于向服务器发送请求

outputStream = socket.getOutputStream();

//把输出流转化为打印流

printWriter = new PrintWriter(outputStream);

printWriter.write("用户名是：Harry 欢迎您！！！");

printWriter.flush();

} catch (IOException e) {

e.printStackTrace();

}finally {

//关闭资源

try {

if (inputStream != null)

inputStream.close();

if (inputStream != null)

inputStreamReader.close();

if (bufferedReader != null) {

bufferedReader.close();

}

if (outputStream != null) {

outputStream.close();

}

if (printWriter != null) {

printWriter.close();

}

if (socket != null)

socket.close();

} catch (IOException e) {

e.printStackTrace();

}

单线程服务器

import java.io.*;

import java.net.ServerSocket;

import java.net.Socket;

public class Server {

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

/**

* 创建一个服务器端的Socket，并指定要监听的端口

ServerSocket serverSocket = new ServerSocket(1234);

System.out.println("````````````服务器即将启动｀｀｀｀｀｀｀｀｀｀｀｀");

/**

* 启动监听

Socket socket = serverSocket.accept();

/**

* 获取客户端的输入信息

InputStream inputStream = socket.getInputStream(); //字节输入流

InputStreamReader inputStreamReader = new InputStreamReader(inputStream); //把字节输入流转化为字符输入流

BufferedReader bufferedReader = new BufferedReader(inputStreamReader); //为输入流添加缓冲

String info = null;

while ((info = bufferedReader.readLine()) != null){

System.out.println("我是服务器，收到客户端信息："+info);

}

socket.shutdownInput(); //关闭输入流

/**

* 响应客户端

OutputStream outputStream = socket.getOutputStream(); //获取输出流，用于向服务器发送请求

PrintWriter printWriter = new PrintWriter(outputStream); //把输出流转化为打印流

printWriter.write("用户名是：Harry 欢迎您！！！");

printWriter.flush();

//关闭资源

printWriter.close();

outputStream.close();

bufferedReader.close();

inputStreamReader.close();

inputStream.close();

socket.close();

serverSocket.close();

}

客户端

import java.io.*;

import java.net.Socket;

public class ClientSocket {

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

/**

* 创建一个客户端的Socket，并指定服务器地址和端口号

Socket socket = new Socket("localhost",1234);

OutputStream outputStream = socket.getOutputStream(); //获取输出流，用于向服务器发送请求

PrintWriter printWriter = new PrintWriter(outputStream); //把输出流转化为打印流

printWriter.write("用户名是：Harry，密码是：123");

printWriter.flush();

socket.shutdownOutput(); //关闭输出流

/**

* 获取服务器的信息

InputStream inputStream = socket.getInputStream(); //字节输入流

InputStreamReader inputStreamReader = new InputStreamReader(inputStream); //把字节输入流转化为字符输入流

BufferedReader bufferedReader = new BufferedReader(inputStreamReader); //为输入流添加缓冲

String info = null;

while ((info = bufferedReader.readLine()) != null){

System.out.println("我是客户端，收到服务器信息："+info);

}

socket.shutdownInput(); //关闭输入流

/**

* 关闭资源

inputStream.close();

inputStreamReader.close();

bufferedReader.close();

printWriter.close();

outputStream.close();

socket.close();

}

注：测试的时候只需要启动其中一个服务器就即可。