java socket server and client chat

<p><pre name="code" class="java">

package scoket;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;


/**
 *@ClassName:Server.java  
 *@Description:
 *@author: keweiquan 
 *@date:2016年6月16日 上午11:52:24  
 */
public class Server   
{  
private static final int PORT = 9888;  
    private Socket socket;  
  
    public static void main(String[] args) {  
        Server server = new Server();  
        ConnectThread connect = server.new ConnectThread();  
        new Thread(connect).start();  
    }  
  
    /** 
     * 服务端等待连接线程 
     *  
     * @author Administrator 
     *  
     */  
    class ConnectThread implements Runnable {  
  
        @Override  
        public void run() {  
            try {  
                System.out.println("Waiting client to connect...");  
                ServerSocket serverSocket = new ServerSocket(PORT);  
                socket = serverSocket.accept();  
  
                // socket连接之后开始启动接收与发送消息的线程  
                ReceiveThread receive = new ReceiveThread();  
                SendThread send = new SendThread();  
                new Thread(receive).start();  
                new Thread(send).start();  
            } catch (Exception e) {  
                e.printStackTrace();  
            } finally {  
  
            }  
        }  
    }  
  
    /** 
     * 服务端接收消息线程 
     *  
     * @author Administrator 
     *  
     */  
    class ReceiveThread implements Runnable {  
  
        @Override  
        public void run() {  
            try {  
                String info;  
                InputStream is = socket.getInputStream();  
                DataInputStream dis = new DataInputStream(is);  
                while (true) {  
                    info = dis.readUTF();  
                    System.out.println("Client:" + info);  
                    if (info.equals("bye")) {  
                        break;  
                    }  
                }  
            } catch (Exception e) {  
                e.printStackTrace();  
            } finally {  
  
            }  
        }  
    }  
  
    /** 
     * 服务端发送消息线程 
     *  
     * @author Administrator 
     *  
     */  
    class SendThread implements Runnable {  
  
        @Override  
        public void run() {  
            try {  
                OutputStream os = socket.getOutputStream();  
                DataOutputStream dos = new DataOutputStream(os);  
                InputStreamReader isr = new InputStreamReader(System.in);  
                // 从键盘读入数据  
                BufferedReader br = new BufferedReader(isr);  
                String info;  
                while (true) {  
                    info = br.readLine();  
                    dos.writeUTF(info);  
                    if (info.equals("bye")) {  
                        break;  
                    }  
                }  
            } catch (Exception e) {  
                e.printStackTrace();  
            } finally {  
  
            }  
        }  
    }  
}  

客户端

package scoket;


import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.Socket;


/**
 * @ClassName:Client.java
 * @Description:
 * @author: keweiquan
 * @date:2016年6月16日 上午11:53:12
 */
public class Client {
private static final String IP = "localhost";
private static final int PORT = 9888;
private Socket socket;


public static void main(String[] args) {
Client client = new Client();
ConnectThread connect = client.new ConnectThread();
new Thread(connect).start();
}


/**
* 客户端连接服务端线程
* 
* @author Administrator
* 
*/
class ConnectThread implements Runnable {


@Override
public void run() {
try {
socket = new Socket(IP, PORT);


// socket连接之后开始启动接收与发送消息的线程
ReceiveThread receive = new ReceiveThread();
SendThread send = new SendThread();
new Thread(receive).start();
new Thread(send).start();
} catch (Exception e) {
e.printStackTrace();
} finally {


}
}
}


/**
* 客户端接收消息线程
* 
* @author Administrator
* 
*/
class ReceiveThread implements Runnable {


@Override
public void run() {
try {
String info;
InputStream is = socket.getInputStream();
DataInputStream dis = new DataInputStream(is);
while (true) {
info = dis.readUTF();
System.out.println("Server:" + info);
if (info.equals("bye")) {
break;
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {


}
}
}


/**
* 客户端发送消息线程
* 
* @author Administrator
* 
*/
class SendThread implements Runnable {


@Override
public void run() {
try {
OutputStream os = socket.getOutputStream();
DataOutputStream dos = new DataOutputStream(os);
InputStreamReader isr = new InputStreamReader(System.in);
// 从键盘读入数据
BufferedReader br = new BufferedReader(isr);
String info;
while (true) {
info = br.readLine();
dos.writeUTF(info);
if (info.equals("bye")) {
break;
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {


}
}
}
}