RE: How to output XML as HTML nicely..

[Pugh, Eric]

Scott,

Thank you for your code, I am going to play around with it.  I think in the
short term I am going to go with the <PRE> tags..  In the longer term, it
seems that I may try and create an applet that mimics the functionality of
IE or XMLSpy using a JTree..  That will be another week though.

Thanks for the thought provoking answers!
Eric

-----Original Message-----
From: Scott Eade [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 04, 2002 6:07 AM
To: Turbine Users List
Subject: Re: How to output XML as HTML nicely..


From: "Pugh, Eric" <[EMAIL PROTECTED]>
> I think that JDOM has the ability, if I set it up right, to produce a long
> text string with crlf's in the right places and the appropriate number of
> spaces to do:
> <doc>
>   <element>hi</element>
> </doc>
>
> I am hoping that there is an easy as pie way, versus having to use ECS to
> parse through me JDOM object (which incidentally is what the XML is living
> in!) and figure out how many td to put in or spaces...
>
> I may end up just stripping the < and > characters and using some <PRE>
> tags, but not the best way...  It does seem that there should be somesort
of
> method in Turbine's servlet, or in the Servlet API that would do the
> conversion for me, but I haven't found it yet successfully.

Why not stick with using <PRE> and substitute &lt; and &gt; for < and >
respectively (with spacing provided by JDom as suggested).

> Lastly, I looked around thinking there should be an applet out there that
> would give me a nice XMLSpy type interface that I could embed so you could
> browse the XML tree.  No luck so far.  Sorry about this posting starting
to
> get off topic, but if I do find a way, I will post it back to the list.

It's not too hard to use a JTree over the top of an XML document but
I am not too sure about using swing components in applets.  You would
probably have to write this yourself and you would need to be sure that
your target clients have a JRE configured.

> Eric

I know it is not what you asked for, but the following code will be
useful to anyone that wants to spit out some xml from JDom directly
to the browser (complete with xslt stylesheet):

        String stylesheetName = "http://www.mysite.com/xsl/somesheet.xsl";;
        ProcessingInstruction stylesheet = new
ProcessingInstruction("xml-stylesheet", "type='text/xsl' href='" +
stylesheetName + "'");
        Document doc = new Document(someElement);
        List docContent = doc.getContent();
        docContent.add(0, stylesheet);

        XMLOutputter outputter = new XMLOutputter(" ", true);
        outputter.setTextNormalize(true);

        String filename = "someFilename.xml";

        data.declareDirectResponse();
        HttpServletResponse response = data.getResponse();
        response.setContentType("text/xml; name=" + filename);
        //response.setContentLength(outputter.toString().length()); // Not
very efficient
        response.setHeader("Content-Disposition", "attachment; filename=" +
filename);
        response.setHeader("Cache-Control", "no-cache"); //HTTP 1.1
        response.setHeader("Pragma", "no-cache"); //HTTP 1.0
        response.setDateHeader("Expires", 0); //prevents caching at the
proxy server
        outputter.output(doc, response.getWriter());
        response.flushBuffer();

If the client is IE 5.5 or above it will actually render the result of the
xslt transformation (alas this is not the case for IE 5.0 or Mozilla).

HTH,

Scott


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