InetAddress serverAddr=null;
        try { serverAddr = InetAddress.getByName(bindAddr);
        } catch (UnknownHostException e) {
            System.out.println("地址錯(cuò)誤：服務(wù)器地址錯(cuò)誤");
            System.out.println("用法：java MessageMTServer <地址> <端口號(hào)>");
            System.exit(-1); }
        ServerSocket server=null;
        Socket session=null;
        try {
            server=new ServerSocket(bindPort,20,serverAddr);
            System.out.println("信息：服務(wù)器啟動(dòng)成功，開(kāi)始監(jiān)聽(tīng)");
           while(true){
               session=server.accept();
               MessageService serv=new MessageService(session);
               new Thread(serv).start();
           }
       } catch (IOException e) {
            System.out.println("通信錯(cuò)誤：在與服務(wù)器通信過(guò)程中發(fā)生錯(cuò)誤");
            System.exit(-1);
        } finally{  try { session.close(); } catch (IOException e) {}  }
}}




import java.io.*;
import java.net.Socket;
public class MessageService implements Runnable {
    Socket session=null;
    public MessageService(Socket sess){  session=sess; }
    public void run() {
        try {
            DataInputStream dis=new DataInputStream(session.getInputStream());
            DataOutputStream dos=new DataOutputStream(session.getOutputStream());
            String message=dis.readUTF();
            dos.writeUTF("接收到的消息: "+message);
        } catch (IOException e) {
            System.out.println(“錯(cuò)誤：在與客戶端通信過(guò)程中發(fā)生錯(cuò)誤”);
        } finally{ 
            try { session.close(); } 
            catch (IOException e) {
                System.out.println(“錯(cuò)誤：關(guān)閉Socket時(shí)發(fā)生錯(cuò)誤”);
            }
        }
    }