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| | | custom tag - param passing prob | custom tag - param passing prob 2007-03-08 - By Graeme McLaren
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Hi there, I've added in the following line:
<% String prevMonth = request.getParameter("prevMonth"); %>
I declared prevMonth as a string as I was getting a type mismatch error,
which I still get anyway because my set method declares an int. However
this is looking much more promising.
Do all variables get passed as a String from a JSP to a Tag class?
It looks like I need to use parseInt to get the String back to an int.
Should this be done in the JSP or the Tag class? I'm not clear on how I'd
do that, any suggestions?
Your help is much appreciated, thank you.
Graeme :)
>From: Fei Yang <fyang1024@(protected)>
>Reply-To: A mailing list about Java Server Pages specification and
>reference <JSP-INTEREST@(protected)>
>To: JSP-INTEREST@(protected)
>Subject: Re: custom tag - param passing prob
>Date: Thu, 8 Mar 2007 16:23:41 +1100
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> <BAY138-F256E74905B6D8F54B254D1D7790@(protected)>
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>
>pageContext.getParameter won't compile, because there's no such method
>defined
>
>In your code, <JavaComponents:calendar prevMonth="<%= prevMonth %>" />,
>the second prevMonth should be a variable defined your jsp.
>There should something like <% int prevMonth = request.getParameter
>("prevMonth")%>
>somewhere before that line.
>The first prevMonth is an attribute of your custom tag. Don't confuse
>yourself
>
>
>On 3/8/07, Graeme McLaren <iamnotregistered@(protected)> wrote:
>>
>>Hi there, prevMonth is defined in my extended BodyTagSupport class. I
>>also
>>tried something like this within the JSP which didn't work:
>>
>><%!
>> int prevMonth = pageContext.getParameter("prevMonth");
>> int nextMonth = request.getParameter("nextMonth");
>>%>
>>
>>
>>Not really sure on this at all, any suggestions?
>>
>>Thank you for your reply.
>>
>>Graeme :)
>>
>>
>> >From: Fei Yang <fyang1024@(protected)>
>> >Reply-To: A mailing list about Java Server Pages specification and
>> >reference <JSP-INTEREST@(protected)>
>> >To: JSP-INTEREST@(protected)
>> >Subject: Re: custom tag - param passing prob
>> >Date: Thu, 8 Mar 2007 15:55:01 +1100
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>> >References: <BAY138-F267A9D37C8066B89A1FDAFD77A0@(protected)>
>> >Precedence: list
>> >Return-Path: owner-jsp-interest@(protected)
>> >X-OriginalArrivalTime: 08 Mar 2007 05:06:04.0064 (UTC)
>> >FILETIME=[78C94A00:01C7613F]
>> >
>> >Where did you define the "prevMonth" between "<%=" and "%>" ?
>> >
>> >On 3/8/07, Graeme McLaren <iamnotregistered@(protected)> wrote:
>> >>
>> >>Hi all, I am building my first custom tag and I want to pass a value to
>> >>variable around from a jsp to the custom tag:
>> >>
>> >><JavaComponents:calendar prevMonth="<%= prevMonth %>" />
>> >>
>> >>When I try to to run the JSP I get an error:
>> >>
>> >>org.apache.jasper.JasperException: Unable to compile class for JSP
>> >>
>> >>An error occurred at line: 23 in the jsp file: /calendarTag.jsp
>> >>
>> >>Generated servlet error:
>> >> [javac] Compiling 1 source file
>> >>
>> >>
>>
>> >>C:\Tomcat\work\Catalina\localhost\_\org\apache\jsp\calendarTag_jsp.java:90:
>> >>cannot resolve symbol
>> >>symbol : variable prevMonth
>> >>location: class org.apache.jsp.calendarTag_jsp
>> >> _jspx_th_JavaComponents_calendar_1.setPrevMonth( prevMonth );
>> >> ^
>> >>1 error
>> >>
>> >>
>> >>Can anyone suggest anything to help get this working?
>> >>
>> >>
>> >>Cheers in advance,
>> >>
>> >>Graeme :)
>> >>
>> >>
>>
>> >>===========================================================================
>> >>To unsubscribe: mailto listserv@(protected) with body: "signoff
>> >>JSP-INTEREST".
>> >>For digest: mailto listserv@(protected) with body: "set JSP-INTEREST
>> >>DIGEST".
>> >>
>> >>Some relevant archives, FAQs and Forums on JSPs can be found at:
>> >>
>> >>http://java.sun.com/products/jsp
>> >>http://archives.java.sun.com/jsp-interest.html
>> >>http://forums.java.sun.com
>> >>http://www.jspinsider.com
>> >>
>> >
>>
>> >===========================================================================
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>>
>>
>>===========================================================================
>>To unsubscribe: mailto listserv@(protected) with body: "signoff
>>JSP-INTEREST".
>>For digest: mailto listserv@(protected) with body: "set JSP-INTEREST
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>>
>>Some relevant archives, FAQs and Forums on JSPs can be found at:
>>
>>http://java.sun.com/products/jsp
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>>http://forums.java.sun.com
>>http://www.jspinsider.com
>>
>
>===========================================================================
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>
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>http://www.jspinsider.com
===========================================================================
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