JSP Statements Not Interpreted in a DCP

Question

I've a DCP that renders a JSP statement <% out.println("Hello"); %>. I'm trying to execute the JSP statement by using the CD API on a static JSP page. I've tried all possible scenarios - making the DCP a REL and publishing it to the broker and making it a JSP and publishing it to the file system, but I'm not able to have the JSP statement executed.

Here's what I've tried so far:

1. Made the DCP a JSP and configured the cd_storage_conf.xml to publish DCPs to the file system. The DCP goes to the file system as a JSP and I used the ComponentPresentationAssembler to execute the JSP statement. All I see on the page is the JSP statement rendered as-is. The static JSP page looks like this:

JSPPage dcdPage = new JSPPage(pageContext, "tcm:17-28489-64");
ComponentPresentationAssembler cpAssembler = new  ComponentPresentationAssembler(dcdPage);
out.println(cpAssembler.getContent(20154,1029));

2. Made the DCP a REL and configured the cd_storage_conf.xml to publish DCPs to the broker database. The DCP goes to the broker and I used the ComponentPresentationAssembler to execute the JSP statement, but still no luck. The page has the JSP statement rendered as-is.

I've looked into TREX, but couldn't find anything that helps resolve this issue. There was something similar Java code in DCP not exectued, but that too doesn't seem to have a solution. Any help would be greatly appreciated.

Update 1:

Using the code above doesn't seem to call the JSPProcessor. I believe it just gets the file from the location and displays it. The log shows no errors in this case.

2016-12-05 21:41:06,796 DEBUG FSComponentPresentationDAO - Retrieving default data location for publication: 17 2016-12-05 21:41:06,796 DEBUG FSComponentPresentationDAO - Looking for location for component presentation type: JSP 2016-12-05 21:41:06,797 DEBUG FSComponentPresentationDAO - FSComponentPresentationDAO.getFile(): Location found: C:\test\WebContent\dcp 2016-12-05 21:41:06,799 DEBUG ComponentPresentationAssembler - ComponentPresentation.getContent(componentId=19894;templateId=1029) found: com.tridion.storage.mapper.componentpresentations.JSPComponentPresentationImpl@14f2b1ba

However, if I use tridion tags, the JSPProcessor is called and there's an error thrown. Nothing gets rendered on the page.

<tridion:ComponentPresentation templateURI="tcm:17-1029-32" pageURI="tcm:17-28489-64" componentURI="tcm:17-20154"></tridion:ComponentPresentation>

The log shows an error here.

2016-12-05 21:50:03,298 DEBUG ComponentPresentationAssembler - ComponentPresentation.getContent(...) running JSP ComponentPresentation 2016-12-05 21:50:03,298 DEBUG JSPProcessor - JSPProcessor.run(...) absolutePath of cp: C:\test\WebContent\dcp\dcp1029_19894.jsp 2016-12-05 21:50:03,298 DEBUG JSPProcessor - JSPProcessor.run(...) documentroot C:.metadata.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\test\ 2016-12-05 21:50:03,298 ERROR JSPProcessor - JSPProcessor.run(...) The JSP ComponentPresentation is not located in the documentroot of your website; C:.metadata.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\test;C:\test\WebContent\dcp\dcp1029_19894.jsp

My question now is why does the JSPProcessor looking in the web root? Shouldn't it be looking in the sub-directory that's defined in the cd_storage_conf.xml?

Answer 1

If you're publishing to the filesystem, then you'll need to set the Component Template to output JSP, use the ComponentPresentationAssembler class and ensure that the DCPs are being published to a sub-directory of your website by the Deployer.

If you're publishing as REL, you'll need to set the Component Template to output REL, configure the Deployer to publish these to the Broker database. You could try using the PageContentAssembler class (rather than the ComponentPresentationAssembler one).

For more details please see the Content Delivery Namespaces page in the online documentation.