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Trying to get the value of a tag in an xml string java

I have an xml string stored in a StringBuilder.
My xml looks like this
couldn't write it in code so here's a screenshot
inside the report tag, it looks like
what it looks like
I would like to get access to any tag value I want in the record tag, what I have is :
StringBuilder informationString = new StringBuilder();
Scanner scanner = new Scanner(url.openStream());
while (scanner.hasNext()) {
informationString.append(scanner.nextLine());
}
//Close the scanner
scanner.close();
System.out.println(informationString);
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse(new InputSource(new StringReader(String.valueOf(informationString))));
Element rootElement = document.getDocumentElement();
But I do not know what to do with this and am very lost
Thanks by advance for helping

In general, you can use the below routine
Element documentElement=....
NodeList elmList=documentElement.getElementsByTagName("elementName");
Element e=(Element)elmList.itm(x);//putting it in a loop would do
You could keep using the above to get elements recursively.
Though a better approach would be to use XPath (Saxon has a decent XPath implementaton, though there are many more libraries to choose from)

Casting JDom 1.1.3 Element to Document without DocumentBuilderFactory or DocumentBuilder

I need to find the easier and the efficient way to convert a JDOM element (with all it's tailoring nodes) to a Document. ownerDocument( ) won't work as this is version JDOM 1.
Moreover, org.jdom.IllegalAddException: The Content already has an existing parent "root" exception occurs when using the following code.
DocumentBuilderFactory dbFac = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFac.newDocumentBuilder();
Document doc = null;
Element elementInfo = getElementFromDB();
doc = new Document(elementInfo);
XMLOutputter xmlOutput = new XMLOutputter();
byte[] byteInfo= xmlOutput.outputString(elementInfo).getBytes("UTF-8");
String stringInfo = new String(byteInfo);
doc = dBuilder.parse(stringInfo);

I think you have to use the following method of the element.
Document doc = <element>.getDocument();
Refer the API documentation It says
Return this parent's owning document or null if the branch containing this parent is currently not attached to a document.

JDOM content can only have one parent at a time, and you have to detatch it from one parent before you can attach it to another. This code:
Document doc = null;
Element elementInfo = getElementFromDB();
doc = new Document(elementInfo);
if that code is failing, it is because the getElementFromDB() method is returning an Element that is part of some other structure. You need to 'detach' it:
Element elementInfo = getElementFromDB();
elementInfo.detach();
Document doc = new Document(elementInfo);
OK, that solves the IllegalAddException
On the other hand, if you just want to get the document node containing the element, JDOM 1.1.3 allows you to do that with getDocument:
Document doc = elementInfo.getDocument();
Note that the doc may be null.
To get the top most element available, try:
Element top = elementInfo;
while (top.getParentElement() != null) {
top = top.getParentElement();
}
In your case, your elementInfo you get from the DB is a child of an element called 'root', something like:
<root>
<elementInfo> ........ </elementInfo>
</root>
That is why you get the message you do, with the word "root" in it:
The Content already has an existing parent "root"

The method createDOM not return document

I use HtmlCleaner 2.6.1 and Xpath to parse html page in Android application.
Here html page:
http://www.kino-govno.com/comments/42571-postery-kapitan-fillips-i-poslednij-rubezh
http://www.kino-govno.com/comments/42592-fantasticheskie-idei-i-mesta-ih-obitanija
The first link return document, is all right.The second link here in this place:
document = domSerializer.createDOM(tagNode);
returns nothing.
If you create a simple java project without android. That all works fine.
Here is the Code :
String queries = "//div[starts-with(#class, 'news_text op')]/p";
URL url = new URL(link2);
TagNode tagNode = new HtmlCleaner().clean(url);
CleanerProperties cleanerProperties = new CleanerProperties();
DomSerializer domSerializer = new DomSerializer(cleanerProperties);
document = domSerializer.createDOM(tagNode);
xPath = XPathFactory.newInstance().newXPath();
pageNode = (NodeList)xPath.evaluate(queries,document, XPathConstants.NODESET);
String val = pageNode.item(0).getFirstChild().getNodeValue();

That's because HtmlCleaner wraps the paragraphs of the second HTML page into another <div/>, so it is not a direct child any more. Use the descendent-or-self-axis // instead of the child-axis /:
//div[starts-with(#class, 'news_text op')]//p

How do I add a namespace prefix to an XML DOM object?

I am trying to build an XML document using a specific namespace. The final document I am trying to generate is supposed to look like this:
<m:documentObject xmlns:m="http://www.myschema.com">
<sender>token</sender>
<receiver>token</receiver>
<payload>token</payload>
</m:documentObject>
Here is what i have so far.
Document document = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
Element requestElement = document.createElementNS("http://www.myschema.com", "documentObject");
document.appendChild(requestElement);
Element sender = document.createElement("sender");
requestElement.appendChild(sender);
Text senderText = document.createTextNode("Xmlsender");
sender.appendChild(senderText);
Element receiver = document.createElement("receiver");
requestElement.appendChild(receiver);
Text receiverText = document.createTextNode("Xmlreceiver");
receiver.appendChild(receiverText);
Element payload = document.createElement("payload");
requestElement.appendChild(payload);
Text payloadText = document.createTextNode("Xmlpayload");
payload.appendChild(payloadText);
StringWriter sw = new StringWriter();
StreamResult result = new StreamResult(sw);
DOMSource source = new DOMSource(requestElement);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
transformer.setOutputProperty(OutputKeys.ENCODING, "utf-8");
transformer.transform(source, result);
String xmlString = sw.toString();
System.out.println(xmlString)
For some reason when I run the above the schema comes out without the prefix. As shown below:
<?xml version="1.0" encoding="utf-8"?>
<documentObject xmlns="http://www.myschema.com">
<sender>Xmlsender</sender>
<receiver>Xmlreceiver</receiver>
<payload>Xmlpayload</payload>
</documentObject>
What do I need to do so that XML is exactly as shown in the first XML example with the namespace prefix and the tags to have the namespace prefix?
I am trying to create an XML string which will be used for a Spring-WS webservice which expects a JAXB object which is in the format shown in the first example.

You can use setPrefix.
But it is better to create the root element like this:
document.createElementNS("http://www.myschema.com", "m:documentObject");
Note also that passing null to createElement is a supported way of forcing a null namespace. In your original example this would however not work because your document element effectively forces a default namespace by combining a namespace URI with no prefix.

Parsing using HTMLParser

Parser parser = new Parser();
parser.setInputHTML("d:/index.html");
parser.setEncoding("UTF-8");
NodeList nl = parser.parse(null);
/*
SimpleNodeIterator sNI=list.elements();
while(sNI.hasMoreNodes()){
System.out.println(sNI.nextNode().getText());}
*/
NodeList trs = nl.extractAllNodesThatMatch(new TagNameFilter("tr"),true);
for(int i=0;i<trs.size();i++) {
NodeList nodes = trs.elementAt(i).getChildren();
NodeList tds = nodes.extractAllNodesThatMatch(new TagNameFilter("td"),true);
System.out.println(tds.toString());
I am not getting any output, eclipse shows javaw.exe terminated.

Pass the path to the resource into the constructor.
Parser parser = new Parser("index.html");
Parse and print all the divs on this page:
Parser parser = new Parser("http://stackoverflow.com/questions/7293729/parsing-using-htmlparser/");
parser.setEncoding("UTF-8");
NodeList nl = parser.parse(null);
NodeList div = nl.extractAllNodesThatMatch(new TagNameFilter("div"),true);
System.out.println(div.toString());
parser.setInputHtml(String inputHtml) doesn't do what you think it does. It treats inputHtml as the html input to the parser. You use the constructor to point the parser at an html resource (file or URL).
Example:
Parser parser = new Parser();
parser.setInputHTML("<div>Foo</div><div>Bar</div>");