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XML within string parameter to RPC Service

John Ryan
Ranch Hand

Joined: Mar 14, 2001
Posts: 124
Hi all,
I am going to be using Axis to invoke an RPC style web service which takes a single string parameter. This string parameter is going to contain an XML message. What I am wondering is if I need to wrap this String in a CDATA section before I invoke the web service?
From reading the XML specification it says that character data consists of any text that does not contain markup. However my string value will contain markup. I have tested invoking the web service without wrapping my String in a CDATA section and have found that Axis has changed all the markup characters into their respective entity references (i.e. < has become < ). What Im wondering is why Axis is doing this? Im not sure how it creates its SOAP messages but from a brief glance of the code I guess it a DOM (rather than plain String manipulation ). From looking at the DOM API it does not mention anything about the createTextNode method parsing the text content and expanding markup to use entity references?
Any recommendations or pointers as to what should influence whether the text should be wrapped in a CDATA section would help....
Lasse Koskela

Joined: Jan 23, 2002
Posts: 11962
It's safer to let Axis encode the markup characters. In theory, you never know whether the XML string contains a <![CDATA[foobar]]> itself where the extra occurrence of "]]>" would cause trouble...

Author of Test Driven (2007) and Effective Unit Testing (2013) [Blog] [HowToAskQuestionsOnJavaRanch]
Miro Ricco
Ranch Hand

Joined: Apr 16, 2002
Posts: 40
I'm in the similar situation as John.

I think wrapping the string in CDATA may help become the result xml valid.

E.g. string may contain:
I agree. Here's the link:
subject: XML within string parameter to RPC Service
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