QQ聊天中用户个人信息的传送

Question

public clientInfo connectToServerCheck(InetAddress ip,clientInfo info) throws ClassNotFoundException{//连接服务器并发送用户信息；
 clientInfo infoBack = null;
try {
  socketClient = new Socket(ip,9999);
  isConnect = true;
System.out.println("成功连接到服务器");
           ObjectOutputStream oop = new ObjectOutputStream(socketClient.getOutputStream());
           oop.writeObject(info);//把用户信息以对象流方式发送给服务器；
System.out.println("user:"+info.getNum());           ObjectInputStream oip = new ObjectInputStream(socketClient.getInputStream());
           infoBack = (clientInfo)oip.readObject();  //抛异常。。
//System.out.println("user:"+infoBack.getNum());   }catch(IOException e){
System.out.println("连接超时");
e.printStackTrace();
              isConnect = false;
  }
  
我做一个聊天器的，这段代码是：我把用户信息类info发送给服务器，oop.writeObject(info);服务器接收后进行是否合格的判断，然后再把设置好的用户信息以对象方式发回来给客户端，客户端接收infoBack = (clientInfo)oip.readObject(); ，开始进行下一步的判断，到infoBack = (clientInfo)oip.readObject(); 怎么跑出这个异常了呢？？求解啊？？？成功连接到服务器
user:123
连接超时//？？？？？？？？？？？？？？？？？？？？？？？？怎么会突然断了呢？？？？？？？？
java.io.EOFException
at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2281)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2750)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:780)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
at client.connectToServerCheck(client.java:36)
at loginFrame.actionPerformed(loginFrame.java:182)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6216)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
at java.awt.Component.processEvent(Component.java:5981)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4583)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4413)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4556)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4220)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4150)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2475)
at java.awt.Component.dispatchEvent(Component.java:4413)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Answer 1

at client.connectToServerCheck(client.java:36)
at loginFrame.actionPerformed(loginFrame.java:182)

Answer 2

你的代码太乱了，异常也没有层次结构，顶层的异常是java.io.EOFException，建议好好看看读取socket的代码。

Answer 3

http://download.csdn.net/source/3220620楼主可以看看我写的哦……

Answer 4

java.io.EOFException  
 
socket编程最常见的异常之一,按我的经验来看 经常是由于 客户端和服务器端的读写流不一致造成的.例如:
服务器端:Dataoutput 流写
客户端:ObjectInputStream 流读, 这样就可能发生 eofexception 建议楼主 仔细检查代码是否有上面的错误

Answer 5

IO异常，你的clientInfo这个类实现了序列化吗？有toString方法吗？贴你的clientInfo类代码