Java Socket网络编程

服务器端：

import java.net.*;
import java.io.*;
public class SocketServer extends Thread {
    private ServerSocket serverSocket;
    public SocketServer(int port) throws IOException
    {
        serverSocket=new ServerSocket(port);
        //等待客户连接的时间不超过6秒
        serverSocket.setSoTimeout(100000);
    }
    public void run()
    {
        while(true)
        {
            try
            {
                System.out.println("等待远程连接，端口号为："+serverSocket.getLocalPort());
                Socket server =serverSocket.accept();
                System.out.println("远程主机地址"+server.getRemoteSocketAddress());
                //从客户端读数据
                DataInputStream in=new DataInputStream(server.getInputStream());
                System.out.println(in.readUTF());
                //往客户端发送数据
                DataOutputStream out=new DataOutputStream(server.getOutputStream());
                out.writeUTF("谢谢连接我："+server.getLocalSocketAddress()+"
Goodbye!");
                server.close();
            }
            catch(SocketException s)
            {
                System.out.println("Socket timed out");
                break;
            }
            catch(IOException e)
            {
                e.printStackTrace();
                break;
            }
        }
    }
    public static void main(String[] args)
    {
        int port=6066;
        try
        {
            Thread t=new SocketServer(port);
            t.run();
        }
        catch(IOException e)
        {
            e.printStackTrace();
        }
    }
}

客户端：

import java.net.*;
import java.io.*;
public class SocketClient {
    public static void main(String[] args)
    {
        //服务器地址
        String serverName="localhost";
        //服务器端口号
        int port=6066;
        try
        {
            System.out.println("连接到主机："+serverName+",端口号："+port);
            Socket client=new Socket(serverName,port);
            System.out.println("远程主机地址："+client.getRemoteSocketAddress());
            //向服务器传送消息
            OutputStream outToServer=client.getOutputStream();
            DataOutputStream out=new DataOutputStream(outToServer);
            out.writeUTF("Hello from"+client.getLocalSocketAddress());
            
            //获取服务器返回的信息
            InputStream inFromServer=client.getInputStream(); 
            DataInputStream in=new DataInputStream(inFromServer);
            System.out.println("服务器响应："+in.readUTF());
            client.close();
        }
        catch(IOException e)
        {
            e.printStackTrace();
        }
    }

}