java实现socket多线程代码

最新推荐文章于 2021-02-16 08:48:31 发布

原创最新推荐文章于 2021-02-16 08:48:31 发布 · 693 阅读

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文章标签：

#java #socket #client #server #线程

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本文介绍了一个简单的TCP客户端与服务器之间的交互示例。该示例通过Java实现，展示了如何建立连接、发送消息及接收反馈的过程。客户端可以向服务器发送消息，服务器接收到消息后反馈给客户端，直至客户端发送特定结束指令。

客户端：

package com.sky.java;

import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;
import java.io.*;
public class TCPEchoClientTwo
{

/**
* @param args
*/
public static void main(String[] args) throws IOException
{
try
{
Socket socket = new Socket("127.0.0.1", 4711);
BufferedReader ios = new BufferedReader(new InputStreamReader(System.in));
PrintWriter out = new PrintWriter(socket.getOutputStream());
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String readline = ios.readLine();
while(!readline.equals("bye")){
out.println(readline);
out.flush();
System.out.println("Client:"+readline);
System.out.println("server:"+in.readLine());
readline = ios.readLine();
}
ios.close();
out.close();
in.close();
} catch (Exception e)
{
// TODO: handle exception
System.out.println("err:"+e.getLocalizedMessage());
}
}

}

服务器端：

package com.sky.java;

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

public class TCPEchoServer
{

/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException
{

ServerSocket serverSocket = null;
try
{
serverSocket = new ServerSocket(4711);
Socket socket = null;
while (true)
{
socket = serverSocket.accept();
new ServerThread(socket).start();
}
} catch (Exception e)
{
System.err.println("err"+e.getMessage());
}

}

}

class ServerThread extends Thread{

Socket socket=null;
ServerThread(Socket socket)
{
this.socket =socket;
}
public synchronized void start()
{
// TODO Auto-generated method stub
super.start();
}

@Override
public void run()
{
// TODO Auto-generated method stub
super.run();
try
{
String line = null;
BufferedReader is=new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter os = null;

os = new PrintWriter(socket.getOutputStream());
BufferedReader sin=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Client:"+is.readLine());
line=sin.readLine();
while(!line.equals("bye"))
{
os.println(line);
os.flush();
System.out.println("Server:"+line);
System.out.println("Client:"+is.readLine());
line=sin.readLine();
}
System.out.println("Thread"+currentThread().getId());
os.close();
is.close();
socket.close();
} catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}

}

}