applet通过http与servlet通信时抛出StreamCorruptedException异常
通讯代码是oRelly出的一本关于servlet的书上的,形式如下:
public Object ObjectCommunicateOverHttp(Object request, URL url)
throws IOException, ClassNotFoundException {
URLConnection uc = url.openConnection();
//System.out.println(url.getPath());
uc.setDoInput(true);
uc.setDoOutput(true);
uc.setUseCaches(false);
ObjectOutputStream out = new ObjectOutputStream(uc.getOutputStream());
out.writeObject(request);
out.flush();
out.close();
ObjectInputStream in = new ObjectInputStream(uc.getInputStream());
Object response = in.readObject();
return response;
}
我用这段代码负责多种通讯操作。其中有一种通讯在eclipse里执行的时候是可以正常工作的,但部署到web server上用浏览器打开后就不灵。打开sun 的java控制台,可以看到异常如下:
java.io.StreamCorruptedException
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readArray(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at MyPanel.ObjectCommunicateOverHttp(MyPanel.java:1148)
....
这个异常的getMessage返回为空。我观察了一下jdk类库的源代码,看得不太懂,不知是否有人了解这方面的问题?谢谢。