Instance Analysis of xml string of string Type in Java

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Parsing xml strings of type string

I first concatenate a string in xml format, simulate to get such data, and then parse it.

Import the required packages into StringBuilder sb = new StringBuilder (); sb.append ("); sb.append (" + "this is a mark!") + "); sb.append ("); sb.append (""); sb.append ("" + ") to parse me!" + "); sb.append ("); / / start parsing String str= sb.toString (); Document doc = null; try {doc = DocumentHelper.parseText (str) } catch (DocumentException e) {e.printStackTrace ();} Element root = doc.getRootElement (); / / point to the root node try {Element mark=root.element ("header"). Element ("mark"); Element second=root.element ("body"). Element ("data"). Element ("first"). Element ("second") / / get the node content of xml System.out.println (mark.getTextTrim ()); System.out.println (second.getTextTrim ());} catch (Exception e) {e.printStackTrace ();}

Running result:

Parsing String type t complex xml, multi-level node, the best example

Need to use jar to package dom4j-1.6.1.jar

The string xml is as follows: aa 22 10 10.1.1.2 9999 10.1.1.5 717 2 33 10. 1.1.2 9999 10.1.1.9 878 parsing code import java.io.ByteArrayInputStream Import java.io.UnsupportedEncodingException;import java.util.Iterator;import org.dom4j.DocumentException;import org.dom4j.io.SAXReader;public class XMLParser {public static void main (String [] args) {String xml = "aa221010.1.1.2999910.1.1.571723310.1.1.2999910.1.1.9878"; long start = System.currentTimeMillis (); SAXReader reader = new SAXReader () Try {org.dom4j.Document doc = reader.read (new ByteArrayInputStream (xml. GetBytes ("UTF-8")); org.dom4j.Element root = doc.getRootElement (); org.dom4j.Element element; org.dom4j.Element element2; org.dom4j.Element element3 For (Iterator I = root.elementIterator ("flw"); i.hasNext ();) {element = (org.dom4j.Element) i.next (); System.out .println ("name: [" + element.elementText ("name") + "]") System.out.println ("age: [" + element.elementText ("age") + "]"); for (Iterator j = element.elementIterator ("instance_info"); j. HasNext ();) {element2 = (org.dom4j.Element) j.next () System.out.println ("\ tnum: [" + element2.elementText ("num") + "]"); System.out.println ("\ tcode: [" + element2.elementText ("code") + "]") For (Iterator k = element2.elementIterator ("instance"); k .hasNext ();) {element3 = (org.dom4j.Element) k.next () System.out.println ("\ t\ tip: [" + element3.elementText ("ip") + "]"); System.out.println ("\ t\ tmask: [" + element3.elementText ("mask") + "]") } catch (DocumentException e) {e.printStackTrace ();} catch (UnsupportedEncodingException e) {e.printStackTrace ();} long end = System.currentTimeMillis () System.out.println ("time-consuming:" + (end-start) + "ms");}} the above is about "instance analysis of xml string of string type in Java". I believe you all have some understanding. I hope the content shared by the editor will be helpful to you. If you want to know more about the relevant knowledge, please follow the industry information channel.