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Get XML corresponding to node [duplicate]

Hi I want to convert XML node and its child into a string with its node names.
For example I get a node from XML document which is look like this:
<Name>
<Work>*86</Work>
<Home>*86</Home>
<Mobile>*80</Mobile>
<Work>0</Work>
</Name>
I want to convert whole node into string. With nodenames, not only text. Any help in this regards is greatly appreciated. Thanks.

you can use JDom XMLOutputter subject to the condition that your Element is an org.jdom.Element:
XMLOutputter outp = new XMLOutputter();
String s = outp.outputString(your_jdom_element);

You can use a transformer for that:
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
StreamResult result = new StreamResult(new StringWriter());
DOMSource source = new DOMSource(node);
transformer.transform(source, result);
String xmlString = result.getWriter().toString();
System.out.println(xmlString);

Convert Element to XML string without <?xml version=...> prefix

I have a legacy code with a lot of org.w3c.dom.Element generation like that
Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
Element exampleElement = doc.createElement("example");
exampleElement.appendChild(...
How can I convert exampleElement to XML string like that? (Any additional libraries is allowed)
<example>
...
</example>
Not that
<?xml version="1.0" encoding="UTF-8"?>
<example>
...
</example>

Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OMIT_XML_DECLARATION, "yes");
Writer writer = new StringWriter();
transformer.transform(new DOMSource(node), new StreamResult(writer));
return writer.toString();

There's some options:
Use an XSL Transformer to apply the changes using the directive omit-xml-declaration
Transformer transformer= TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty("omit-xml-declaration", "yes");
transformer.transform(new DOMSource(document), new StreamResult(stream));
Use a string replace process to replace the first line with a regex or using an indexOf("?>")
Depending on the implementation of w3c Document in the JDK used is possible to use some options in DOMConfiguration of the document like canonical-form
document.getDomConfig().setParameter("canonical-form",true);

java xml document.getTextContent() stays empty

I'm trying to build an xml document in a JUnit test.
doc=docBuilder.newDocument();
Element root = doc.createElement("Settings");
doc.appendChild(root);
Element label0 = doc.createElement("label_0");
root.appendChild(label0);
String s=doc.getTextContent();
System.out.println(s);
Yet the document stays empty (i.e. the println yields null.) I don'thave a clue why that is. The actual problem is that a subsequent XPath expression throws the error: Unable to evaluate expression using this context.

The return value of getTextContent on Document is defined to null- See Node.
To retreive the text contents call getTextNode on the root element

I imagine you want to serialize the document to pass it to the test case.
To do this you have to pass your document to an empty XSL transformer, like this:
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
//initialize StreamResult with File object to save to file
StreamResult result = new StreamResult(new StringWriter());
DOMSource source = new DOMSource(doc);
transformer.transform(source, result);
String xmlString = result.getWriter().toString();
System.out.println(xmlString);
See also: How to pretty print XML from Java?

Remove the XML header from an XML in Java

StringWriter writer = new StringWriter();
XmlSerializer serializer = new KXmlSerializer();
serializer.setOutput(writer);
serializer.startDocument(null, null);
serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true);
// Creating XML
serializer.endDocument();
String xmlString = writer.toString();
In the above environment, whether there are any standard API's available to remove the XML header <?xml version='1.0' ?> or do you suggest to go via string manipulation:
if (s.startsWith("<?xml ")) {
s = s.substring(s.indexOf("?>") + 2);
}
Wanted the output in the xmlString without XML header info <?xml version='1.0' ?>.

Ideally you can make an API call to exclude the XML header if desired. It doesn't appear that KXmlSerializer supports this though (skimming through the code here). If you had a org.w3c.dom.Document (or actually any other implementation of javax.xml.transform.Source) you could accomplish what you want this way:
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
StringWriter writer = new StringWriter();
transformer.transform(new DOMSource(doc), new StreamResult(writer));
Otherwise if you have to use KXmlSerializer it looks like you'll have to manipulate the output.

If you use a JAXP serializer you get access to all the output properties defined in XSLT, for example omit-xml-declaration="yes". You can get this in the form of an "identity transformer", called using transformerFactory.getTransformer() with no parameters, on which you then call setOutputProperty(). Another example:
TransformerFactory tf = TransformerFactory.newInstance();
Transformer t = tf.newTransformer();
t.setOutputProperty("omit-xml-declaration", "yes");

Don't make call to:
serializer.startDocument();
It adds the XML header, though you need to call:
serializer.endDocument();
else your XML will be created as a blank String.

How to convert xml Element and its child nodes into String in Java?

Hi I want to convert XML node and its child into a string with its node names.
For example I get a node from XML document which is look like this:
<Name>
<Work>*86</Work>
<Home>*86</Home>
<Mobile>*80</Mobile>
<Work>0</Work>
</Name>
I want to convert whole node into string. With nodenames, not only text. Any help in this regards is greatly appreciated. Thanks.

you can use JDom XMLOutputter subject to the condition that your Element is an org.jdom.Element:
XMLOutputter outp = new XMLOutputter();
String s = outp.outputString(your_jdom_element);

You can use a transformer for that:
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
StreamResult result = new StreamResult(new StringWriter());
DOMSource source = new DOMSource(node);
transformer.transform(source, result);
String xmlString = result.getWriter().toString();
System.out.println(xmlString);