百分求解一程序(JAVA网络)

服务端代码：import java.io.*;
import java.net.*;
import java.util.*;public class ChatServer {
boolean started = false;
ServerSocket ss = null;

List<Client> clients = new ArrayList<Client>();

public static void main(String[] args) {
new ChatServer().start();
}

public void start() {
try {
ss = new ServerSocket(8888);
started = true;
} catch (BindException e) {
System.out.println("端口使用中....");
System.out.println("请关掉相关程序并重新运行服务器！");
System.exit(0);
} catch (IOException e) {
e.printStackTrace();
}

try {

while(started) {
Socket s = ss.accept();
Client c = new Client(s);
System.out.println("a client connected!");
new Thread(c).start();
clients.add(c);
//dis.close();
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
ss.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

class Client implements Runnable {
private Socket s;
private DataInputStream dis = null;
private DataOutputStream dos = null;
private boolean bConnected = false;

public Client(Socket s) {
this.s = s;
try {
dis = new DataInputStream(s.getInputStream());
dos = new DataOutputStream(s.getOutputStream());
bConnected = true;
} catch (IOException e) {
e.printStackTrace();
}
}

public void send(String str) {
try {
dos.writeUTF(str);
} catch (IOException e) {
clients.remove(this);
System.out.println("对方退出了！我从List里面去掉了！");
//e.printStackTrace();
}
}

public void run() {
try {
while(bConnected) {
String str = dis.readUTF();
System.out.println(str);
for(int i=0; i<clients.size(); i++) {
Client c = clients.get(i);
c.send(str);
//System.out.println(" a string send !");
}
/*
for(Iterator<Client> it = clients.iterator(); it.hasNext(); ) {
Client c = it.next();
c.send(str);
}
*/
/*
Iterator<Client> it = clients.iterator();
while(it.hasNext()) {
Client c = it.next();
c.send(str);
}
*/
}
} catch (EOFException e) {
System.out.println("Client closed!");
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if(dis != null) dis.close();
if(dos != null) dos.close();
if(s != null) {
s.close();
//s = null;
}

} catch (IOException e1) {
e1.printStackTrace();
}

}
}

}
}客户端代码：import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;public class ChatClient extends Frame {
Socket s = null;
DataOutputStream dos = null;
DataInputStream dis = null;
private boolean bConnected = false; TextField tfTxt = new TextField(); TextArea taContent = new TextArea();

Thread tRecv = new Thread(new RecvThread()); public static void main(String[] args) {
new ChatClient().launchFrame();
} public void launchFrame() {
setLocation(400, 300);
this.setSize(300, 300);
add(tfTxt, BorderLayout.SOUTH);
add(taContent, BorderLayout.NORTH);
pack();
this.addWindowListener(new WindowAdapter() { @Override
public void windowClosing(WindowEvent arg0) {
disconnect();
System.exit(0);
}

});
tfTxt.addActionListener(new TFListener());
setVisible(true);
connect();

tRecv.start();
}

public void connect() {
try {
s = new Socket("192.168.1.110", 8888);
dos = new DataOutputStream(s.getOutputStream());
dis = new DataInputStream(s.getInputStream());
System.out.println("connected!");
bConnected = true;
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}

}

public void disconnect() {
try {
dos.close();
dis.close();
s.close();
} catch (IOException e) {
e.printStackTrace();
}

/*
try {
bConnected = false;
tRecv.join();
} catch(InterruptedException e) {
e.printStackTrace();
} finally {
try {
dos.close();
dis.close();
s.close();
} catch (IOException e) {
e.printStackTrace();
}
}
*/
}

private class TFListener implements ActionListener { public void actionPerformed(ActionEvent e) {
String str = "李成龙：" + tfTxt.getText().trim();
//taContent.setText(str);
tfTxt.setText("");

try {
//System.out.println(s);
dos.writeUTF(str);
dos.flush();
//dos.close();
} catch (IOException e1) {
e1.printStackTrace();
}

}

}

private class RecvThread implements Runnable { public void run() {
try {
while(bConnected) {
String str = dis.readUTF();
//System.out.println(str);
taContent.setText(taContent.getText() + str + '\n');
}
} catch (SocketException e) {
System.out.println("退出了，bye!");
} catch (EOFException e) {
System.out.println("推出了，bye - bye!");
} catch (IOException e) {
e.printStackTrace();
}

}

}
}

格式不对，自己用eclipse调整一下就行了

就是Java 聊天室吧，我最近也在研究这个 ^.^

服务器端主程序

import java.io.IOException;
import java.net.BindException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.BlockingDeque;
import java.util.concurrent.LinkedBlockingDeque;
  public class ChatServer {
  boolean started = false;
  ServerSocket ss = null;
  private Set<ChatServerThread> threadSet = new HashSet<ChatServerThread>();
  private BlockingDeque<String> deque = new LinkedBlockingDeque<String>(5);
  public void removeThread(ChatServerThread thread) {
    threadSet.remove(thread);
  }
  public void addMessage(String msg) {
    try {
      System.out.println("<< " + msg);
      deque.putFirst(msg);
    } catch (Exception ex) {
      ex.printStackTrace();
    }
  }
  public static void main(String[] args) {
    new ChatServer().start();
  }
  public void start() {
    try {
      ss = new ServerSocket(7000);
      started = true;
    } catch (BindException e) {
      System.out.println("无法启动服务器:端口被占用");
    } catch (IOException e) {
      System.out.println("无法启动服务器:" + e.getLocalizedMessage());
    }
    try {
      Thread thread = null;
      new ChatServerBroadcast(threadSet, deque).start();
      while (started) {
        Socket socket = ss.accept();
        System.out.println("a client connected");
        ChatServerThread c = new ChatServerThread(this, socket);
        thread = new Thread(c);
        c.setThreadId(thread.getId());
        threadSet.add(c);
        thread.start();
      }
    } catch (IOException e) {
      e.printStackTrace();
    } finally {
      try {
        ss.close();
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
  }
}

服务器端线程处理类

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.EOFException;
import java.io.IOException;
import java.net.Socket;

public class ChatServerThread implements Runnable {
  private Socket s;
  private DataInputStream dis = null;
  private DataOutputStream dos = null;
  boolean bconnected = false;

  private long threadId;

  public long getThreadId() {
    return threadId;
  }

  public void setThreadId(long threadId) {
    this.threadId = threadId;
  }

  private ChatServer server = null;

  ChatServerThread(ChatServer server, Socket s) {
    this.server = server;
    this.s = s;
    try {
      dis = new DataInputStream(s.getInputStream());
      dos = new DataOutputStream(s.getOutputStream());
      bconnected = true;
    } catch (IOException e) {
      e.printStackTrace();
    }
  }

  public void run() {
    try {
      while (bconnected) {
        server.addMessage(dis.readUTF());
      }
    } catch (EOFException e) {
      System.out.println("Client closed!");
    } catch (IOException e) {
      e.printStackTrace();
    } finally {
      server.removeThread(this);
      try {
        if (dis != null)
          dis.close();
        if (s != null)
          s.close();
      } catch (IOException e1) {
        e1.printStackTrace();
      }
    }
  }

  public void sendMessage(String msg) {
    try {
      dos.writeUTF(msg);
    } catch (Exception ex) {
      bconnected = false;
    }
  }

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + (int) (threadId ^ (threadId >>> 32));
    return result;
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj)
      return true;
    if (obj == null)
      return false;
    if (getClass() != obj.getClass())
      return false;
    final ChatServerThread other = (ChatServerThread) obj;
    if (threadId != other.threadId)
      return false;
    return true;
  }
}

服务器端信息广播类

import java.util.Iterator;
import java.util.Set;
import java.util.concurrent.BlockingDeque;

/**
* 负责群发消息到各个连接
*
* @author Administrator
*
*/
public class ChatServerBroadcast extends Thread {
  private Set<ChatServerThread> threadSet;
  private BlockingDeque<String> deque;

  ChatServerBroadcast(Set<ChatServerThread> threadSet, BlockingDeque<String> deque) {
    this.threadSet = threadSet;
    this.deque = deque;
  }

  public void run() {
    while (true) {
      try {
        String msg = deque.takeLast();
        System.out.println(">> " + msg);
        Iterator<ChatServerThread> it = threadSet.iterator();
        while (it.hasNext()) {
          it.next().sendMessage(msg);
        }
      } catch (Exception ex) {
        ex.printStackTrace();
      }
    }
  }
}

客户端代码

import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Frame;
import java.awt.TextArea;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;


class ChatClient extends Frame {
  private static final long serialVersionUID = -6290371526617318074L;
  public static void main(String[] args) {
    new ChatClient("chat");
  }
  Button b = new Button("send");
  Socket s = null;
  DataOutputStream dos = null;
  TextField tf = new TextField();
  TextArea ta = new TextArea();
  DataInputStream dis = null;
  boolean bconnected = false;
  ChatClient(String s) {
    super(s);
    setLocation(400, 300);
    setVisible(true);
    setSize(300, 300);
    setLayout(new BorderLayout());
    add("East", b);
    Monitor1 monitor = new Monitor1();
    b.addActionListener(monitor);
    tf.addKeyListener(monitor);
    addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        setVisible(false);
        disconnected();
        System.exit(0);
      }
    });
    add("South", tf);
    add("North", ta);
    pack();
    connect();
    new Thread(new RecvThread()).start();
  }
  public void connect() {
    try {
      s = new Socket("127.0.0.1", 7000);
      dos = new DataOutputStream(s.getOutputStream());
      dis = new DataInputStream(s.getInputStream());
      System.out.println("connected");
      bconnected = true;
    } catch (UnknownHostException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
  public void disconnected() {
    try {
      dos.close();
    } catch (IOException e) {
      e.printStackTrace();
    }
    try {
      s.close();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
  class Monitor1 extends KeyAdapter implements ActionListener, KeyListener {
    @Override
    public void keyReleased(KeyEvent e) {
      if (e.getKeyCode() == KeyEvent.VK_ENTER) {
        doSend();
      }
    }
    public void actionPerformed(ActionEvent e) {
      if (e.getSource() == b) {
        doSend();
      }
    }
    private void doSend() {
      if (bconnected) {
        String str = tf.getText().trim();
        if (str.length() == 0) {
          return;
        }
        tf.setText("");
        try {
          dos.writeUTF(str);
          dos.flush();
        } catch (IOException e1) {
          e1.printStackTrace();
        }
      }
    }
  }
  private class RecvThread implements Runnable {
    public void run() {
      try {
        while (bconnected) {
          String str = dis.readUTF();
          ta.append(str + "\n");
        }
      } catch (java.net.SocketException ex) {
        bconnected = false;
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
  }
}

调试易

百分求解一程序(JAVA网络)

解决方案 »