The URL I am sending from myFlag.html is: http://localhost:8080/myJSPs/Hour10/myFlag.jsp?country=venezuela&colors=yell ow&colors=blue&colors=red
-----Original Message----- From: Capr1ce [mailto:[EMAIL PROTECTED]] Sent: Thursday, August 15, 2002 11:41 AM To: Tomcat Users List Subject: Re: AW: Errors Compiling a JSP If that is all the code you have, I assume you have a NullPointerException, which means that one of the variables you are trying to use is null. ie. probably never set. If that code you gave was in a file called 'test.jsp', add parameters onto the end of it when you call it in your browser like this: http://localhost:8080/yourWebapp/test.jsp?country=uk&colors=red&colors=blue&; colors=pink with this code: Parameters * Country = <%= request.getParameter("country") %> * Colors: <% String[] colorValues = request.getParameterValues("colors"); %> * Color 1 = <%= colorValues[0]%> * Color 2 = <%= colorValues[1]%> * Color 3 = <%= colorValues[2]%> and it will work. At 05:34 PM 15/08/2002 +0200, you wrote: >There should be more information available in one of the logs. > >Some background: > >The JSP is compiled to a servlet. > >With <%! %> you define members or methods for the class or >instance. >With <% %> you fill the body of a method, all implicit >variables (like request) are local to this method. > >Have a look at the generated code in the work directory >to get a better idea what happens with your code. > > > -----Ursprüngliche Nachricht----- > > Von: Sharples, Brian [mailto:[EMAIL PROTECTED]] > > Gesendet: Donnerstag, 15. August 2002 17:21 > > An: 'Tomcat Users List' > > Betreff: RE: Errors Compiling a JSP > > > > > > That didn't work. Removing the "!" gave me the error: Status > > 500 The server > > encountered an internal error that prevented it from fulfilling this > > request. > > > > Thanks > > > > Brian > > > > -----Original Message----- > > From: Capr1ce [mailto:[EMAIL PROTECTED]] > > Sent: Thursday, August 15, 2002 11:19 AM > > To: Tomcat Users List > > Subject: Re: Errors Compiling a JSP > > > > > > > > Try it like this: > > > > <% String[] colorValues = request.getParameterValues("colors"); %> > > > > > > At 11:14 AM 15/08/2002 -0400, you wrote: > > >Hi, > > > > > >I am learning JSP with the SAMS book"Teach Yourself JSP in > > 24 Hours". One > > >of the sample JSPs keeps getting a compiler error. The code is: > > > > > >Parameters > > > * Country = <%= request.getParameter("country") %> > > > * Colors: > > > <%! String[] colorValues = > > request.getParameterValues("colors"); %> > > > * Color 1 = <%= colorValues[0]%> > > > * Color 2 = <%= colorValues[1]%> > > > * Color 3 = <%= colorValues[2]%> > > > > > > > > >The error is a status 500 - Internal Server Error: Undefined > > variable or > > >class name: request > > >String[] colorValues = request.getParameterValues("colors"); > > >If I remove the colorValues variable declaration and just put <% > > >request.getParameterValues("colors") %>, I get past that > > line. Of course, > > >the next line then shows colorValues as undefined. > > >I don't understand why this is occurring. I am using Tomcat > > 4.0.4 and > > j2sdk > > >1.4.0_01. > > >Thanks for your help. > > >Brian Sharples > > > > > > > > >-- > > >To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > >For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > > > > > -- > > To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > -- > > To unsubscribe, e-mail: ><mailto:[EMAIL PROTECTED]> >For additional commands, e-mail: ><mailto:[EMAIL PROTECTED]> > > > >-- >To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> >For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
