import tag for dynamic content
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import tag for dynamic content
by paulbrickell
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Does anyone know how to use the import tag to access dynamic content from the current context?
I naively thought this would do it... <c:set var="url" value="/x/y/z"/> <c:import url="${url}" var="xml" /> or <c:set var="url" value="x/y/z"/> <c:import url="${url}" var="xml" /> Where /x/y/z is a (context)relative path that my application maps to a servlet. However this doesn't seem to work because the import tag doesn't expand the url and make a request. It does, to be honest, what it's name suggests it should and just tries to import the content statically from the given path. Actually I am trying to import xml for parsing here, but it seems that the xml parse tag only works upon a document in some scope and not against a URL. So I appear to be a bit stuck. I found this... <c:set var="xmlURL" value="${pageContext.request.scheme}://${pageContext.request.serverName}:${pageContext.request.serverPort}${pageContext.request.contextPath}/x/y/z"/> <c:import url="${xmlURL}" var="xml" /> and it works. But I cannot believe this is the right way to it. TIA, Paul B. |
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Re: import tag for dynamic content
by Hassan Schroeder-2
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On Tue, Sep 15, 2009 at 1:48 AM, paulbrickell
<paul.brickell@...> wrote: > > Does anyone know how to use the import tag to access dynamic content from the > current context? > I found this... > > <c:set var="xmlURL" > value="${pageContext.request.scheme}://${pageContext.request.serverName}:${pageContext.request.serverPort}${pageContext.request.contextPath}/x/y/z"/> > <c:import url="${xmlURL}" var="xml" /> > > and it works. But I cannot believe this is the right way to it. <c:url var="xmlURL" value="/x/y/z"/> would be easier :-) -- Hassan Schroeder ------------------------ hassan.schroeder@... twitter: @hassan --------------------------------------------------------------------- To unsubscribe, e-mail: taglibs-user-unsubscribe@... For additional commands, e-mail: taglibs-user-help@... |
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Re: import tag for dynamic content
by paulbrickell
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Hassan,
Agreed. Just doesn't work.
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Re: import tag for dynamic content
by Hassan Schroeder-2
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On Wed, Sep 16, 2009 at 12:43 AM, paulbrickell
<paul.brickell@...> wrote: > Agreed. Just doesn't work. ? Uh, "doesn't work" exactly how? This <c:url var="xmlURL" value="/x/y/z"/> sets `xmlURL` to a very different value compared to your original <c:set var="url" value="x/y/z"/> What's the exact error? -- Hassan Schroeder ------------------------ hassan.schroeder@... twitter: @hassan --------------------------------------------------------------------- To unsubscribe, e-mail: taglibs-user-unsubscribe@... For additional commands, e-mail: taglibs-user-help@... |
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Re: import tag for dynamic content
by paulbrickell
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Hassan,
If I create a url with a context relative path (e.g. /x/y/z) and the I use this in the url attribute of an import tag, the import tag seems to attempt a lookup of a file in the web application. So given this... <c:url var="aURL" value="/x/y/z"/> Get resource at z <c:import url="${aURL}" var="xml" /> The link in href attribute in the browser is a valid url, but the url attribute in the import tag is not. I get a file not found exception for /x/y/z. Import seems to want to lookup a static resource (html page for example) located on the file system and not open connection to some network resource. I am assuming from the name (import) that this is probably what is expected. Doesn't help me though. If I set the value in the URL to /x/y/z.html (assuming that resource exists) all is well. So the question is can I 'import' dynamic content (from a servlet in my case) rather than a static resource? I guess I could point my URL to a JSP that 'includes' the content I want, assuming that include works properly. I still think I am missing something. Cheers, Paul B.
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Re: import tag for dynamic content
by Hassan Schroeder-2
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On Wed, Sep 16, 2009 at 7:05 AM, paulbrickell
<paul.brickell@...> wrote: > If I create a url with a context relative path (e.g. /x/y/z) and the I use > this in the url attribute of an import tag, the import tag seems to attempt > a lookup of a file in the web application. > > So given this... > > <c:url var="aURL" value="/x/y/z"/> > ${aURL} Get resource at z > <c:import url="${aURL}" var="xml" /> > > The link in href attribute in the browser is a valid url, but the url > attribute in the import tag is not. I get a file not found exception for > /x/y/z. Import seems to want to lookup a static resource (html page for > example) located on the file system and not open connection to some network > resource. I am assuming from the name (import) that this is probably what is > expected. No, what you're describing works exactly correctly for me -- the URL is accessed, and the rendered output, not a file, is fetched. What value does ${aURL} display? -- Hassan Schroeder ------------------------ hassan.schroeder@... twitter: @hassan --------------------------------------------------------------------- To unsubscribe, e-mail: taglibs-user-unsubscribe@... For additional commands, e-mail: taglibs-user-help@... |
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