Struts URL tag issue

[Joe Harry]

Guys,

I have a strange issue with using s:url tags to call an action. Below is what I have on one of my jsp page:

<p>The next JUG Chennai meeting schedules on 29-October-2010 @ where. More Information <a href="<s:url action="meetUp"/>">here...</a>.
			</p>

When I click the link, I get the following as exception:

Struts Problem Report

Struts has detected an unhandled exception:
# Messages: 	There is no Action mapped for namespace / and action name
Stacktraces
There is no Action mapped for namespace / and action name

    com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:177)
    org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61)
    org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)
    com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:47)
    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:458)
    org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:112)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
    org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
    org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    java.lang.Thread.run(Thread.java:662)

When I viewed the rendered html using Mozilla's firebug, I see the following rendered for the anchor tag as shown in the screenshot



How could this be possible then? Bemused!

[Joe Harry]

OK. Managed to get rid of it. Changed the anchor tag to <a href="<%=request.getContextPath()%>/content/meetUp.action">here....

But why would the s:url not work? And what is the deal with the request.getContextPath()? Do I need to prepend it to all my url links in my app?

[Richard Golebiowski]

It should work, unless it's not in the"/" namespace.

[Jesus Mireles]

From your screenshot it looks like its not even rendering html .. its just sptting out what you typed in the jsp ... so I would question if you have the s prefix defined in your jsp.

<%@ taglib prefix="s" uri="/struts-tags" %>

From your comment it looks like you changed it to scriptlet code to get the context path and then the namespace .... it looks like if you had your prefix defined correctly then I'm guessing you can probably do this:

<s:url var="url" action="meetUp" namespace="content"/>
<s:a href="%{url}">here ...</s:a>

Because from your comment it looks like this action is in the content namespace and not the / which would be the default.