java adding cdata to xml string

Question

I need to add CDATA to xml string for sign it with certificate.

String looks like:

<SignedContent>someparametres</SignedContent>

Result must be like:

<![CDATA[<SignedContent>someparametres</SignedContent>]]>

How can i do this? Pls help

P.S. Xml string has only one row (removed all tabs, all spaces, BOM)

Does it really have to be CDATA? could the content simply be encoded for use within xml (i.e. <SignedContent>someparameters</SignedContent>)? — Brett Okken
– Brett Okken, Commented Jun 13, 2014 at 12:07

Jon Skeet · Accepted Answer · 2014-06-13 14:23:03Z

9

It sounds like you just want:

Node cdata = doc.createCDATASection(text); parentElement.appendChild(cdata);

answered Jun 13, 2014 at 14:23

Jon Skeet

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2 Comments

NovaCenturion Over a year ago

How can i add cdata to xml where root element is SignedContent. If i add cdata like u wrote, it will be looks like <SignedContent><![CDATA[someparameters]]></SignedContent>.

Jon Skeet Over a year ago

@bakash_erni: It's not clear what you mean. What you've shown in your question is CDATA whose content is SignedContent. In other words, you should be taking your SignedContent element, converting that to text, creating a CDATASection from that, and adding it to some other node. You can't have an XML document whose root node is itself CDATA.

Rasheed · Accepted Answer · 2017-03-30 11:17:19Z

This post may be hold but i feel i should respond, this may help someone else.

 JAXBContext context = JAXBContext.newInstance(SignedContent.class); Marshaller marshallerObj = context.createMarshaller(); marshallerObj.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); StringWriter sw = new StringWriter(); marshallerObj.marshal(signedContentObj, sw); DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); factory.setValidating(true); factory.setExpandEntityReferences(false); Document doc = factory.newDocumentBuilder().newDocument(); doc.createCDATASection(sw.toString()).getData();

You can play around from here...

Oops,my response is in JAVA, since the question did not specify any language

ceving · Accepted Answer · 2014-06-13 12:50:45Z

-5

Use Javas + operator:

"<![CDATA[" + "<SignedContent>someparametres</SignedContent>" + "]]>"

answered Jun 13, 2014 at 12:50

ceving

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5 Comments

Jon Skeet Over a year ago

Please don't start manipulating XML documents using string operations. Recipe for failure.

ceving Over a year ago

@JonSkeet CDATA contains just character data. It is nothing more than a string.

Jon Skeet Over a year ago

Good luck with that if the text you want to represent happens to include ]]>. I'd expect an XML API to make that error clear immediately, rather than giving you an invalid XML document. Bypassing the XML model and using strings is pretty much always a bad idea.

ceving Over a year ago

@JonSkeet CDATA sections cannot nest.

Jon Skeet Over a year ago

Indeed. So will your approach highlight that problem immediately, or create an invalid doc? The latter, I believe - whereas by using an XML API, you can get validation as you construct the doc, making it easier to find problems.

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