Re: applet communic with servlet

Thank you in "Viju" and "Nair" for your answers.  
According to what Nair said I tested of remove "response.setContentType
("application/x-java-serialized-object")" and I had the same error.  
Even error when I put "response.setContentType("text/html") as said 
Viju.  
Any idea ?  
Thank you

nb : The error is :
"java.io.StreamCorruptedException: InputStream does not contain a 
serialized object"


---- Messages d´origine ----
De: viju <[email protected]>
Date: jeudi 27 f&eacute;vrier  2003 23:19
Objet: Re: applet communic with servlet

> response.setContentType("text/html");
> will work for both conditions...
> 
> Vj
> 
> ----- Original Message -----
> From: "Jean-Baptiste Noël" <[email protected]>
> To: <[email protected]>
> Sent: Thursday,February 27,2003 9:16 PM
> Subject: applet communic with servlet
> 
> 
> > Hello,
> > I include/understand or comes the error but I do not know how 
> resolve> the problem.
> > I have applet which commnunic with a servlet. The applet sends
> > a "string" to the servlet. The servlet receive the "string" and
> > compares it with another. If it is not good, then the servlet re-
> send> a "stringError".
> > If not the servlet returns a page HTML.
> > It is here that is the problem when the servlet returns page 
> HTML I
> > have the error "java.io.StreamCorruptedException: Does InputStream
> > does not contain have serialized object" .
> > How to make so that the applet manages the two types of objects 
> which> it receives? Is this possible?
> > The code of the servlet and the applet below.
> > Thank you very much.
> >
> > //My Applet :
> > public class EchoApplet extends Applet {
> > ...
> > ...
> >   sendButton.addActionListener(new ActionListener() {
> >     public void actionPerformed(ActionEvent e) {
> >     onSendData();
> >     }
> >   }
> > /**
> > * Get a connection to the servlet.
> >  */
> >  private URLConnection getServletConnection()
> >   throws MalformedURLException, IOException {
> >    URL urlServlet = new URL(getCodeBase(), "echo");
> >    URLConnection con = urlServlet.openConnection();
> >    con.setDoInput(true);
> >    con.setDoOutput(true);
> >    con.setUseCaches(false);
> >    con.setRequestProperty("Content-Type",
> >             "application/x-java-serialized-object");
> >    return con;
> >   }
> >
> > /**
> > * Send the inputField data to the servlet and show the result in 
the
> > outputField.*/
> > private void onSendData() {
> >     try {
> >     String log = login.getText();
> >         // send data to the servlet
> >     URLConnection con = getServletConnection();
> >     OutputStream outstream = con.getOutputStream();
> >     ObjectOutputStream oos = new ObjectOutputStream(outstream);
> >         oos.writeObject(log);
> >     oos.flush();
> >     oos.close();
> >
> >       // receive result from servlet
> >     InputStream instr = con.getInputStream();
> >     ObjectInputStream inputFromServlet = new ObjectInputStream
> > (instr);
> >     String result = (String) inputFromServlet.readObject();
> >         inputFromServlet.close();
> >         instr.close();
> >     // show result
> >     outputField.setText(result);
> >
> >     } catch (Exception ex) {
> >     ex.printStackTrace();
> >     exceptionArea.setText(ex.toString());
> >       }
> >    }
> > }
> >
> >
> > //MY servlet
> > public class EchoServlet extends HttpServlet {
> > public void doPost(HttpServletRequest request,HttpServletResponse
> > response)
> > throws ServletException, IOException {
> > try {
> > InputStream in = request.getInputStream();
> > ObjectInputStream inputFromApplet = new ObjectInputStream(in);
> > String echo = (String)inputFromApplet.readObject();
> > String resultToApplet;
> > if (!(echo.equals("ok"))
> >  {
> > response.setContentType("application/x-java-serialized-object");
> > resultToApplet = "Error login or password";
> > // echo it to the applet
> > OutputStream outstr = response.getOutputStream();
> > ObjectOutputStream oos = new ObjectOutputStream(outstr);
> > oos.writeObject(resultToApplet);
> > oos.flush();
> > oos.close();
> > }
> >
> > else
> > {
> > //my new html page
> > response.setContentType("text/html; charset=ISO-8859-1");
> > PrintWriter out = response.getWriter();
> > out.print("<html><head></head><h1>OK</h1></html>");
> > }
> > } catch (Exception e) {
> > e.printStackTrace();
> > }
> > }
> > }
> >
> >
> 
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