Re: weird getParameter behavior

[Balogh Andras]

Hi !!

 

I think you should try like this :

 

 

if ( req.getParameterValues("hname")==null) {

                                                                              machine=false;

                                                                              }

 

if(machine) {

                     

                     string name= req.getParameterValues("hname")[0];

 

                   }

 

 

Hope it helps,

 

            Best wishes,

                                       Andras.

 

-----Original Message-----
From: Miriam <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Thursday, May 06, 1999 11:18 AM
Subject: weird getParameter behavior

>  I am trying to determine if a page was called with a parameter or not,
>and display output based on this, however, java is complaining about a
>NullPointerException,
>
> here is what I am trying to do:
>
>        // Did we get called with a machine name?
>        boolean machine=true;
>        if (req.getParameter("hname")==null)
>           machine=false;
>
>        if (machine) {
>
>        // blah blah big table
>        }
>        else {
>
>        // blah blah a different table
>
>        }
>
> when I use getParameter the url ~/update.jhtml?hname=something works
> but ~/update.jhtml does not.
>
> Conversely, when I use getParameterValues the url ~/update.jhtml
>works,   but ~/update.jhtml?hname=something does not..
>
> the error looks like:
>
>
> !-- java.lang.NullPointerException
>        at org.apache.jservssi.ServletInfoRequest.getParameter(Compiled Code)
>        at MachineUpdateServ.service(Compiled Code)
>        at javax.servlet.http.HttpServlet.service(Compiled Code)
>        at org.apache.jservssi.ServletInfoRequest.runServlet(Compiled Code)
>        at org.apache.jservssi.JServSSI.interpretPage(Compiled Code)
>        at org.apache.jservssi.JServSSI.doGet(Compiled Code)
>        at javax.servlet.http.HttpServlet.service(Compiled Code)
>        at javax.servlet.http.HttpServlet.service(Compiled Code)
>        at org.apache.jserv.JServConnection.run(Compiled Code)
>        at java.lang.Thread.run(Compiled Code)
>-->
>
> -Miriam
>
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