We noticed that the MIME type advertised was not
working so we switched to text/java-application. That
worked. Our code for sending objects back to applets
is as follows:
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class ObjectTransmitter {
public ObjectTransmitter(HttpServletResponse
response, Serializable ser) {
ObjectOutputStream oos = null;
try {
response.setContentType("text/java-application");
oos = new
ObjectOutputStream(response.getOutputStream());
oos.writeObject(ser);
oos.flush();
oos.close();
} catch (java.net.SocketException se) {
} catch (Exception erx) {
System.out.println("Exception Sending Response:"
+ erx);
} finally {
try { oos.close(); } catch (Exception e) {}
}
}
}
I am not sure if it was an NT specific issue.
//Nicholas
--- Rishi Asthana <[EMAIL PROTECTED]> wrote:
> That's wierd .... i simulated the same thing on the
> said platform and it works
> fine .... so i guess the only explaination is NT4.0
> :-)
> How about testing the same thing on some other
> platform ... ?!
> Rishi.
>
> Sandeep Gupta wrote:
>
> > I've checked that the string sent to applet is not
> null.
> >
> > There is no specific reasoon to set content type
> in that way. I just copied
> > it from a tutorial. Please let me know if there is
> a possibility of a
> > problem there ?
> >
> > Thanks & Regards,
> > Sandeep.
> >
> > > -----Original Message-----
> > > From: Francesca Quattrocchi
> [SMTP:[EMAIL PROTECTED]]
> > > Sent: Tuesday, January 11, 2000 4:54 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: Unable to get results from
> Servlet
> > >
> > > Are you sure you don't send a null String to the
> applet?
> > > Just another question: why do you set the
> Content Type in that way?
> > >
> > > > -----Original Message-----
> > > > From: Sandeep Gupta
> [SMTP:[EMAIL PROTECTED]]
> > > > Sent: Tuesday, January 11, 2000 4:04 PM
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Unable to get results from
> Servlet
> > > > Importance: High
> > > >
> > > > Hi All,
> > > >
> > > > I need to do Applet-Servlet Communication. I'm
> able to communication
> > > from
> > > > Applet to Servlet but not vice-versa. While I
> try to get results from
> > > > Servlet it gives following exception:
> > > >
> > > > java.io.StreamCorruptedException: InputStream
> does not contain a
> > > > serialized
> > > > object
> > > >
> > > > I'm working with JDK1.1.8 on NT4.0. My
> appletside code is :
> > > >
> > > > URLConnection con =
> servlet.openConnection();
> > > > con.setDoInput(true);
> > > > con.setDoOutput(true);
> > > > con.setUseCaches(false);
> > > >
> con.setRequestProperty("Content-Type",
> > > > "application/x-www-form-urlencoded");
> > > >
> > > > // Write the arguments as post
> data
> > > > ObjectOutputStream out = new
> > > > ObjectOutputStream(con.getOutputStream());
> > > > int numObjects = objs.length;
> > > > for (int x = 0; x <
> numObjects; x++) {
> > > >
> out.writeObject(objs[x]);
> > > > }
> > > >
> > > > out.flush();
> > > > out.close();
> > > >
> > > > ObjectInputStream in=new
> ObjectInputStream(
> > > > con.getInputStream());
> > > >
> > > > And my Servlet code is:
> > > > public void doPost(HttpServletRequest req,
> HttpServletResponse resp)
> > > > throws ServletException, IOException
> > > > {
> > > > ObjectInputStream in = new
> > > > ObjectInputStream(req.getInputStream());
> > > > ObjectOutputStream out = new
> > > > ObjectOutputStream(resp.getOutputStream());
> > > > try {
> > > > String data1 =
> (String)in.readObject();
> > > > String data2 =
> (String)in.readObject();
> > > > String result =
> db.Login(data1,data2);
> > > > Serializable objs1[] = {result};
> > > > out.writeObject(objs1[0]);
> > > > out.flush();
> > > > out.close();
> > > > in.close();
> > > > } catch (Exception e) {
> > > > System.out.println("Exception in
> UserLogin Servlet: "+e);
> > > > }
> > > > }
> > > >
> > > > Please let me know, where am I wrong ?
> > > >
> > > > Thanks & Regards,
> > > > Sandeep.
> > > >
> > > >
> > >
>
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=====
"Piper, Piper the red red worm
awoke last night to the sound of the storm
the words are the words I sailed upon."
Piper, Phish
--
Nicholas Whitehead
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