如何将请求参数发送到url？

Question

I am using following code but getting error .

<c:set var="temp1" value="${variableVal}" />
            <c:url var="urlVar" value="Testing.jsp">
        <c:param name = "DisParam" value ="${temp1}"/>
        </c:url>        
        <TD ><a class="Tabs" href="<c:url value="${urlVar}"/>">Testing</a>|</TD>

but I am getting following error

Error Message: java.io.FileNotFoundException: SRVE0190E: File not found: /${urlVar} Error Code: 404 Target Servlet: com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor Error Stack: java.io.FileNotFoundException: SRVE0190E: File not found: /${urlVar}

I am using websphere version 8.0 How can I resolve this?

Answer 1

So things are looking good here:

<c:set var="temp1" value="${variableVal}" />
<c:url var="urlVar" value="Testing.jsp">
    <c:param name = "DisParam" value ="${temp1}"/>
</c:url>        

but instead of using the "urlVar" var that you created, you are using c:url to re-encode the contents of "urlVar". You don't want to do that. So replace:

<a class="Tabs" href="<c:url value="${urlVar}"/>">Testing</a>

with

<a class="Tabs" href="${urlVar}">Testing</a>

because urlVar should already be a nicely encoded URL with a parameter called "DisParam".

Note: You could get rid of the first line:

<c:url var="urlVar" value="Testing.jsp">
    <c:param name="DisParam" value="${variableVal}"/>
</c:url>        
<TD><a class="Tabs" href="${urlVar}">Testing</a>|</TD>