Hi,I'm Chinese.java.io.StreamCorruptedException: invalid type code: 6A?

Question

Hello! please help me, thanks! I'm Chinese.first to the sun forums.My English is bad,so sorry!
你好！感谢你的帮助！第一次来到sun 论坛来提问，很激动啊，呵呵。
java.io.StreamCorruptedException: invalid type code: 6A
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1356)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at controller.NetController$Receiver.run(NetController.java:88)
at java.lang.Thread.run(Thread.java:619)
java.io.StreamCorruptedException: invalid type code: 6A
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1356)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at controller.NetController$Receiver.run(NetController.java:88)
at java.lang.Thread.run(Thread.java:619)
Exception in thread "Thread-3" java.lang.NullPointerException
at controller.DoubleModeController.updateYourCtrl(DoubleModeController.java:127)
at controller.DoubleModeController.receiveObj(DoubleModeController.java:123)
at controller.NetController$Receiver.run(NetController.java:92)
at java.lang.Thread.run(Thread.java:619)
下面是NetCotroller类的一个内部类，负责接收数据：
This is a inner class of NetCotroller class, it receive datas:
Java code
private class Receiver implements Runnable {
        @Override
        public void run() {
            while(isRunning) {
                ObjectInputStream ois = null;
                try {
                    byte[] receiveBytes = new byte[1024*2];
                    dp = new DatagramPacket(receiveBytes, receiveBytes.length);
                    ds.receive(dp);
                    System.out.println("receive ...@_@");
                    ByteArrayInputStream bais = new ByteArrayInputStream(receiveBytes);
                    ois = new ObjectInputStream(bais);
                   //到下面这句时，就抛出了那异常！
           // this sentence throw the Exception
                    receiveObj = ois.readObject();
                    ois.close();
                    ncl.receiveObj((Object[])receiveObj);
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (ClassNotFoundException e) {
                    e.printStackTrace();
    }

Answer 1

1.
I changed the code to this(when datagram was fragmented, just leave it alone,and back to "ds.receive(dp);" ):
Is it OK?
private class Receiver implements Runnable {
@Override
public void run() {
boolean isCorrupted = false;//changed
while(isRunning) {
isCorrupted = false;//changed
ObjectInputStream ois = null;
Object o = null;
try {
byte[] receiveBytes = new byte[1024*5];
dp = new DatagramPacket(receiveBytes, receiveBytes.length);
ds.receive(dp);
ByteArrayInputStream bais = new ByteArrayInputStream(receiveBytes);
ois = new ObjectInputStream(bais);
o = ois.readObject();
} catch (IOException e) {
isCorrupted = true;//changed
System.out.println(o);
System.out.println("IOException---NetController--receiver");
// e.printStackTrace();
} catch (ClassNotFoundException e) {
System.out.println("ClassNotFoundException---NetController--receiver");
if(!isCorrupted) {//changed
System.out.println("receive ...@_@..." + Arrays.toString((Object[])o));
ncl.receiveObj((Object[])o);
}2.Is there a src of "Russia Block of Net"?Please send it to my e-mail ([[email protected]|mailto:[email protected]]), thank you very much!
Edited by: HolleWorld on Jan 2, 2010 1:51 AM