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标题: 求助~~~~~~~~~~~~~！搞不懂错在哪了，求大神指教~~！ [打印本页]

作者: 梦里听传说 时间: 2014-9-12 00:01
标题: 求助~~~~~~~~~~~~~！搞不懂错在哪了，求大神指教~~！
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
class khd
{
public static void main(String[] args)
{
//new kehuduan();
DatagramSocket fs=null;
DatagramSocket js=null;
Frame ck=new Frame("A聊天室");
Button an=new Button("发送");
TextArea wbk1=new TextArea(10,40);
TextArea wbk2=new TextArea(10,40);
ck.setLayout(new FlowLayout());
ck.setBounds(100,200,350,420);
ck.add(wbk1);
ck.add(wbk2);
ck.add(an);
ck.setVisible(true);
try
{
fs=new DatagramSocket();
js=new DatagramSocket(33333);
}
catch (IOException e)
{
throw new RuntimeException("端口被占用");
}
jieshou s=new jieshou(js,wbk1);
Thread t=new Thread(s);
t.start();
new kehuduan(ck,an,wbk2,fs);

}

}
class jieshou implements Runnable
{
private DatagramSocket khd;
private TextArea wbk1;
jieshou(DatagramSocket khd,TextArea wbk1)
{
this.khd=khd;
this.wbk1=wbk1;
}
public void run()
{
byte y[]=new byte[1024];
DatagramPacket bao=new DatagramPacket(y,0,y.length);
try
{
while(true)
{
khd.receive(bao);
String id=bao.getAddress().getHostAddress();
int dk=bao.getPort();
String nr=new String(bao.getData(),0,bao.getLength());
wbk1.append("IP："+id+":"+dk+",说："+nr);
}
}
catch (IOException a)
{
throw new RuntimeException("接收失败");
}

}
}

class kehuduan
{
private Frame ck;
private Button an;
private TextArea wbk2;
private DatagramSocket khd;
kehuduan(Frame ck,Button an,TextArea wbk2,DatagramSocket khd)
{
this.ck=ck;
this.an=an;
this.wbk2=wbk2;
this.khd=khd;
jiemian();
}
public  void jiemian()
{

event();

}
private  void event()//事件方法
{
ck.addWindowListener(new WindowAdapter(){public void windowClosing(WindowEvent e){
System.exit(0);
}});
an.addActionListener(new ActionListener(){public void actionPerformed(ActionEvent e){
fs();
}});

}
private void fs()//发送按钮点击后聊天窗口发生的事情
{

try
{
String ls=null;
BufferedReader buf=new BufferedReader(new StringReader(wbk2.getText()));
wbk2.setText("");

while ((ls=buf.readLine())!=null)//把文本框2的内容发送到对方主机
{

try
{
byte lin[]=ls.getBytes();
DatagramPacket bao=new DatagramPacket(lin,lin.length,InetAddress.getByName("127.0.0.1"),12345);
khd.send(bao);
}
catch (IOException p)
{
throw new RuntimeException("发送失败");
}
finally
{
try
{
buf.close();

}
catch (IOException c)
{
throw new RuntimeException("关闭失败");
}
}

}
}
catch (IOException a)
{
throw new RuntimeException("读取失败");
}

}
}

运行后一点发送就报这样的异常
Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: 读取失败
      at kehuduan.fs(khd.java:142)
      at kehuduan.access$000(khd.java:73)
      at kehuduan$2.actionPerformed(khd.java:99)
      at java.awt.Button.processActionEvent(Button.java:409)
      at java.awt.Button.processEvent(Button.java:377)
      at java.awt.Component.dispatchEventImpl(Component.java:4883)
      at java.awt.Component.dispatchEvent(Component.java:4705)
      at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:746)
      at java.awt.EventQueue.access$400(EventQueue.java:97)
      at java.awt.EventQueue$3.run(EventQueue.java:697)
      at java.awt.EventQueue$3.run(EventQueue.java:691)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDo
main.java:75)
      at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDo
main.java:86)
      at java.awt.EventQueue$4.run(EventQueue.java:719)
      at java.awt.EventQueue$4.run(EventQueue.java:717)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDo
main.java:75)
      at java.awt.EventQueue.dispatchEvent(EventQueue.java:716)
      at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThre
ad.java:201)
      at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.
java:116)
      at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:105)
      at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)

      at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
      at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
我真找不到代码哪里错了求指导~~~~~~~！！！！！！！！！！！！！！！！:Q:Q:Q要疯了

作者: 梦里听传说 时间: 2014-9-12 00:02
问题就出在fs（）方法上，我看我代码没问题啊为什么会报错呢

作者: 梦里听传说 时间: 2014-9-12 00:10
快来人啊！！~:Q

作者: 何艳梅 时间: 2014-9-12 00:30
你为什么再用udp传输的时候，又用到流对象。就用数据包就好啦。你这样readline（）读不到结束符。

作者: 梦里听传说 时间: 2014-9-12 02:06

何艳梅发表于 2014-9-12 00:30
你为什么再用udp传输的时候，又用到流对象。就用数据包就好啦。你这样readline（）读不到结束符。 ...

谢谢提醒，迷瞪了:L

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