04.import java.io.InputStream;
05.import java.io.UnsupportedEncodingException;
07.public class StringToStream {
08. public static void main(String[] args) {
09. String text = "Converting String to InputStream Example";
16. try {
17. InputStream is = new ByteArrayInputStream(text.getBytes("UTF-8"));
18. } catch (UnsupportedEncodingException e) {
19. e.printStackTrace();
20. }
21. }
22.}
I had to find out a way to read an XML file, and convert it to java String. Below is the code snippet I used.
public String convertXMLFileToString(String fileName)
{
try{
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
InputStream inputStream = new FileInputStream(new File(fileName));
org.w3c.dom.Document doc = documentBuilderFactory.newDocumentBuilder().parse(inputStream);
StringWriter stw = new StringWriter();
Transformer serializer = TransformerFactory.newInstance().newTransformer();
serializer.transform(new DOMSource(doc), new StreamResult(stw));
return stw.toString();
}
catch (Exception e) {
e.printStackTrace();
}
return null;
}
Convert String XML to XML Document in java
Example 1: Element node = DocumentBuilderFactory .newInstance() .newDocumentBuilder() .parse(new StringInputStream("<node>value</node>")) .getDocumentElement(); Example 2:
/** * @param docBuilder * the parser * @param parent * node to add fragment to * @param fragment * a well formed XML fragment */ public static void appendXmlFragment( DocumentBuilder docBuilder, Node parent, String fragment) throws IOException, SAXException { Document doc = parent.getOwnerDocument(); Node fragmentNode = docBuilder.parse( new InputSource(new StringReader(fragment))) .getDocumentElement(); fragmentNode = doc.importNode(fragmentNode, true); parent.appendChild(fragmentNode); }
Example 3:
Then get the Document into which the new node is inserted, and the parent Element (to be) from it. (Your org.w3c.dom.Document would need to be converted to org.dom4j.Document here.) For testing purposes, I created one like this:
Document originalDoc = new SAXReader().read(new StringReader("<root><given></given></root>")); Element givenNode = originalDoc.getRootElement().element("given");
Adding the new child element is very simple:
givenNode.add(newNodeDocument.getRootElement());
Done. Outputting originalDoc now yields:
<?xml version="1.0" encoding="utf-8"?> <root> <given> <node>value</node> </given> </root>
Appendix: Because your question talks about org.w3c.dom.Document, here’s how to convert between that and org.dom4j.Document.
// dom4j -> w3c DOMWriter writer = new DOMWriter(); org.w3c.dom.Document w3cDoc = writer.write(dom4jDoc); // w3c -> dom4j DOMReader reader = new DOMReader(); Document dom4jDoc = reader.read(w3cDoc);
Source: http://stackoverflow.com/questions/729621/convert-string-xml-fragment-to-document-node-in-java
http://sacrosanctblood.blogspot.com/2008/07/convert-xml-file-to-xml-string-in-java.html
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