c:import, c:param
Hi All,
I'm trying the following:
<c:import url="header.jsp">
<c:param name="test" value="hello" />
</c:import>
and trying to output the param value in header.jsp but it displays nothing.
Help is greatly appreciated.
Thanks,
Greeshma.
# 1
stick the following line at the top of your jsp
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
probably. it might vary a bit, depending on a few things, but read Teh Docs ™ or google "jstl tutorial" for more. or search these forums, this sort of problem arises all the time
# 2
If you are unable to solve this after doing your own research...
1) Check: Is header.jsp visible to the JSP you have the c:import tag on?
2) Post the full relevant code of your current JSP which includes header.jsp and also the code for header.jsp itself.
Next time , please include as much relevant code as possible, it will reduce the time it takes for you to get a response and it will also keep the thread short.
# 3
Thanks for your replies. I have the taglib at the top of my JSP.
I'am attaching the 2 jsp's that I'm using.
JSP that includes header.jsp:
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<html>
<body topmargin="0" leftmargin="0">
<div id="container">
<div id="header">
<c:import url="header.jsp">
<c:param name="test" value="test" />
</c:import>
</div>
</div>
</body>
</html>
and header.jsp
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<html>
<body>
<c:out value="${test}"/>
<c:set var="hi" value="hi" />
<c:out value="${hi}" />
</body>
</html>
Only hi is displayed in the JSP.
Help is greatly appreciated.
Thanks,
Greeshma.
# 4
According to JSTL 1.1 Specification c:param sends an HttpRequest parameter to c:import , c:url and c:redirect.
So , in your header.jsp your code should be
<c:out value="${param.test}"/>
and not
<c:out value="${test}"/>
It is very useful to check with the JSTL spec document, when something doesn't work or simply when you want to learn more about JSTL - its a PDF document , to get the document go here:
http://jcp.org/aboutJava/communityprocess/final/jsr052/index2.html and then click on Download, and then look for this jstl-1_1-mr2-spec.pdf PDF document .
# 5
> Thanks for your replies. I have the taglib at the top
> of my JSP.
> I'am attaching the 2 jsp's that I'm using.
>
> JSP that includes header.jsp:
>
> <%@ taglib uri="http://java.sun.com/jstl/core"
> prefix="c"%>
> <html>
><body topmargin="0" leftmargin="0">
><div id="container">
> <div id="header">
><c:import url="header.jsp">
><c:param name="test" value="test" />
> </c:import>
></div>
></div>
> ody>
> </html>
>
>
> and header.jsp
>
>
> <%@ taglib uri="http://java.sun.com/jstl/core"
> prefix="c"%>
> <html>
>
> <body>
> <c:out value="${test}"/>
> <c:set var="hi" value="hi" />
> <c:out value="${hi}" />
> </body>
> </html>
>
>
> Only hi is displayed in the JSP.
>
> Help is greatly appreciated.
>
> Thanks,
> Greeshma.
um, what do you expect that code to do? looks like it's working fine to me. it's done exactly what you asked
# 6
Thanks appy77...It works...I'll definetely check the doc's ...and I really appreciate any suggestions to improve my knowledge in jsp, java.Thanks,Greeshma...