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RE: sending xml response from servlet

From: Klotz, Leigh <Leigh.Klotz@xerox.com>
Date: Tue, 20 Feb 2007 10:26:40 -0800
Message-ID: <E254B0A7E0268949ABFE5EA97B7D0CF402CEFD35@usa7061ms01.na.xerox.net>
To: Iņaki Salinas Bueno <inksalinas@gmail.com>, "www-forms" <www-forms@w3.org>
Iņaki,
Whatever API you use, when you serialize, you will need to tell the serializer what encoding to use, and specify that same value as the charset in the HTTP response header.
ISO-8859-1 will work, but you must tell JDOM to use it; otherwise it will likely default to something else.
XML that starts wtih <?xml version="1.0" ?> is UTF-8 by definition and so is the default.
So you really have 3 places to worry about but the XML API you use will handle two of them (the XML declaration and the actual characters themselves).
You must make sure that the HTTP response header has the right value in it.
If this isn't clear, please ask me.
Leigh.

________________________________

From: www-forms-request@w3.org [mailto:www-forms-request@w3.org] On Behalf Of Iņaki Salinas Bueno
Sent: Monday, February 19, 2007 12:25 PM
To: www-forms
Subject: Re: sending xml response from servlet


Thanks all.

I did so many things and I had to change the code so many times trying different forms to implement my application that I do not know which code I have used. But I am very happy with the help you gave to me.

I tried to do it with JDOM library and I embroiled with it. I know why I embroiled now (ignorance of how to use the Java language), I will try it again later maybe.

Referring to the last comment of Leigh, I suppose that charset=ISO-8859-1 works too. And thanks for your comments about improving efficiency. It is not relevant for what I have to do but I will consider it if efficiency turns relevant.

Regards,
Iņaki




2007/2/19, Erik Bruchez <ebruchez@orbeon.com>: 


	Iņaki,
	
	We have a very simple example in JSP in our CVS (scroll past the tags...):
	
	http://cvs.forge.objectweb.org/cgi-bin/viewcvs.cgi/ops/orbeon/src/examples-jsp/flickr-search/service-search.jsp?rev=1.1&content-type=text/vnd.viewcvs-markup
	
	This example uses dom4j to read the submitted XML. 
	
	BTW, I recommend you look at the eXist database instead of Xindice. This
	will also allow you to have your forms directly talk with the database
	using REST, instead of using a Java layer in the middle:
	
	   http://exist.sourceforge.net/
	
	We have examples on our web site on how to access eXist from XForms,
	including in our tutorial:
	
	   http://www.orbeon.com/ops/doc/intro-tutorial
	   http://www.orbeon.com/ops/xforms-bookcast/
	
	Our Government Forms example also uses REST to directly talk to eXist: 
	
	   http://www.orbeon.com/ops/forms/
	
	I hope this helps,
	
	-Erik
	
	Iņaki Salinas Bueno wrote:
	> Hello,
	>
	> Can someone recommend me a set of libraries that allow a servlet 
	> receive/send XML documents from/to xforms? I have found several
	> libraries, but I don't know which is more adapted for what I want to do.
	>
	> I'm using xforms in client side and a servlet for xindice (DB manager) 
	> calls in server side.
	>
	> The servlet gets the xml document from xforms and add it in the DB
	> correctly (I used a Xindice web application example and the tip 'Xforms
	> tip: Accepting XForms data in Java 
	> <http://www-128.ibm.com/developerworks/java/library/x-xformstipjava/index.html>'
	> for its construction), but I don't know how can I get a XML document 
	> from DB and put it in the response object of the servlet.
	>
	> The example of the tip works with strings, so following it for the
	> response I would have to take the XML document of the DB, transform it 
	> into a string, and then send it. Cannot be the XML document sent as
	> application/xml without transforming it into a string?
	>
	> Maybe questions are more java related than xforms, but they are
	> working-with-xml related so I think that I can found help in this forum.
	>
	> Thanks
	> Iņaki
	
	
	--
	Orbeon Forms - Web Forms for the Enterprise Done the Right Way
	http://www.orbeon.com/
	
	
Received on Tuesday, 20 February 2007 18:27:19 GMT

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