Richard,
ok! i'm gonna try to explain
This is the code where it gives the error:
public Object getFromServlet(String opcao, String
am){
Object obj = null;
try{
URL url = new
URL("http://phc:8000/main?"+URLEncoder.encode("opcao")+
"="+URLEncoder.encode(opcao)+"&"+URLEncoder.encode("param")+
"="+URLEncoder.encode(param));
URLConnection con = url.openConnection();
con.setDoOutput( true );
con.setDoInput( true );
con.setUseCaches( false );
con.setDefaultUseCaches(false);
InputStream in = con.getInputStream(); //THE ERROR OCCURS HERE
ObjectInputStream objStream;
objStream = new ObjectInputStream(in);
obj = (Object)objStream.readObject();
objStream.close();
in.close();
}catch(IOException o){o.printStackTrace();}
catch(ClassNotFoundException c){c.printStackTrace();}
return obj;
}
Has you can see, i think i'm connecting to right url... (like i said i think...)
Just a detail this code is not exactly in the applet class file. I'm going to
explain... My applet is kind of big, it has a lot of stuff so i've created a new class
which extends JPanel, and put it as an attribute of my applet class. May this be a
problem?
Thanks for your help.
Hugo Malheiro
-----Original Message-----
From: A mailing list for discussion about Sun Microsystem's Java Servlet
API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of
Richard Yee
Sent: quinta-feira, 20 de Setembro de 2001 19:22
To: [EMAIL PROTECTED]
Subject: Re: java.net.ConnectException in applet connection to servlet
Hugo,
Can you describe what your applet is doing again? It still sounds like it
is trying to make a HttpURLConnection to a server that is different from
where the applet was downloaded from. Doing this is a security exception
and changing the permissions is not going to help.
-Richard
At 06:54 PM 9/20/01 +0100, you wrote:
>You were right, about the name server. The problem was that i was using an
>older version of my file where i've already have changed the name of the
>server.
>
>However the problem persists in another way. In localhost it gives no error
>but when i run my application in another computer it gives me now another
>error.
>
>Exception occurred during event dispatching:
>java.security.AccessControlException: access denied
>(java.net.SocketPermission phc:8000 connect,resolve)
>at java.security.AccessControlContext.checkPermission(Unknown Source)
>at java.security.AccessController.checkPermission(Unknown Source)
>at java.lang.SecurityManager.checkPermission(Unknown Source)
>at java.lang.SecurityManager.checkConnect(Unknown Source)
>at sun.plugin.protocol.jdk12.http.HttpURLConnection.connectStep1(Unknown
>Source)
>at sun.plugin.protocol.jdk12.http.HttpURLConnection.connect(Unknown Source)
>at Veiculos_Panel.getFromServlet(Veiculos_Panel.java:712)
>at Veiculos_Panel.procuraButtonActionPerformed(Veiculos_Panel.java:615)
>at Veiculos_Panel$5.actionPerformed(Veiculos_Panel.java:426)
>at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
>at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Unknown
>Source)
> at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
> at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
>at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
>at java.awt.Component.processMouseEvent(Unknown Source)
>at java.awt.Component.processEvent(Unknown Source)
>at java.awt.Container.processEvent(Unknown Source)
>at java.awt.Component.dispatchEventImpl(Unknown Source)
>at java.awt.Container.dispatchEventImpl(Unknown Source)
>at java.awt.Component.dispatchEvent(Unknown Source)
>at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
>at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
>at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
>at java.awt.Container.dispatchEventImpl(Unk
nown Source)
>at java.awt.Component.dispatchEvent(Unknown Source)
> at java.awt.EventQueue.dispatchEvent(Unknown Source)
>at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
>at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
> at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> at java.awt.EventDispatchThread.run(Unknown Source)
>
>
>And my java.policy file looks like this:
>
>grant {
>permission java.security.AllPermission;
>};
>
>Thanks for your help.
>
>Hugo Malheiro
>
>
>-----Original Message-----
>From: A mailing list for discussion about Sun Microsystem's Java Servlet
>API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of
>Sohaila Roberts
>Sent: quinta-feira, 20 de Setembro de 2001 15:10
>To: [EMAIL PROTECTED]
>Subject: Re: java.net.ConnectException in applet connection to servlet
>
>
>try putting the actual server's name that the servlet is running on,
>instead of localhost
>
> > URL url = new
>URL("http://localhost:8000/main?"+URLEncoder.encode("opcao")+
> >
>"="+URLEncoder.encode(opcao)+"&"+URLEncoder.encode("param")+
> >
>"="+URLEncoder.encode(param));
> > URLConnection con = url.openConnection();
> > con.setDoOutput( true );
> > con.setDoInput( true );
> > con.setUseCaches( false );
> > con.setDefaultUseCaches(false);
> > InputStream in = con.getInputStream();
> > ObjectInputStream objStream;
> > objStream = new ObjectInputStream(in);
> > obj = (Object)objStream.readObject();
> > objStream.close();
> > in.close();
> >
> > }catch(IOException o){o.printStackTrace();}
> > catch(ClassNotFoundException c){c.printStackTrace();}
> >
> >
> > return obj;
> > }
> >
> > (I return an object some that i can use the same function in diferent
> > places)
> >
> > I've looked in the archives and in search engines for this exception,
but
>i
> > did not find anything relevant. Some if anyone can help me i would
>apreciate
> > it.
> >
> > Thanks for you time.
> > Hugo Malheiro
> >
> >
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> >
>
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