Java DOM 实现方法
package com.b2cquery.icbc;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.io.InputStream;import java.util.Vector;import java.util.logging.Logger;import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.DocumentBuilderFactory;import javax.xml.parsers.ParserConfigurationException;import org.w3c.dom.Document;import org.w3c.dom.Element;import org.w3c.dom.Node;import org.w3c.dom.NodeList;import org.xml.sax.SAXException;public class DOM {public Vector<Vector<String>> ICBCworkingDOM() {DocumentBuilderFactory domfac = DocumentBuilderFactory.newInstance();Vector<Vector<String>> queryresult = new Vector<Vector<String>>();Vector<String> rowdata = new Vector<String>();Double totalmoney = 0.00;boolean tag = true;String nexttag ="";try {int rdcount = 0;DocumentBuilder dombuilder = domfac.newDocumentBuilder();//ICBCB2CQuery icbc = new ICBCB2CQuery();//InputStream is = icbc.B2CQueryByPage("20110407", "20110407", "");InputStream is = new FileInputStream("E:/icbc.xml");Document doc = dombuilder.parse(is);Element CMS = doc.getDocumentElement();NodeList eb = CMS.getChildNodes();for (int i = 0; i < eb.getLength(); i++) {// get ebif (eb.item(i).getNodeType() == Node.ELEMENT_NODE && eb.item(i).getNodeName().equals("eb")) {//System.out.println(eb.item(i).getNodeName());//System.out.println("I'm eb!");NodeList eblist = eb.item(i).getChildNodes();for (int j = 0; j < eblist.getLength(); j++) {//get pub//if (eblist.item(j).getNodeType() == Node.ELEMENT_NODE && eblist.item(j).getNodeName().equals("pub")){//NodeList pubList = eblist.item(j).getChildNodes();//for (int k = 0; k < pubList.getLength(); k++) {//if(pubList.item(k).getNodeType() == Node.ELEMENT_NODE){//System.out.println(pubList.item(k).getNodeName());//}//}//}//get outif (eblist.item(j).getNodeType() == Node.ELEMENT_NODE && eblist.item(j).getNodeName().equals("out")) {NodeList outList = eblist.item(j).getChildNodes();//System.out.println(eblist.item(j).getNodeName());for (int k = 0; k < outList.getLength(); k++) {//get NextTagif (outList.item(k).getNodeType() == Node.ELEMENT_NODE&& outList.item(k).getNodeName().equals("NextTag")){String getNextTag = outList.item(k).getTextContent();if (getNextTag.equals("") == false) {tag = true;nexttag = getNextTag;}else{tag = false;nexttag = "";}}//getrdif (outList.item(k).getNodeType() == Node.ELEMENT_NODE&& outList.item(k).getNodeName().equals("rd")) {rdcount++;//System.out.println(outList.item(k).getNodeName());//System.out.println("I'm rd!");NodeList rdList = outList.item(k).getChildNodes();//get orderInfofor (int l = 0; l < rdList.getLength(); l++) {if (rdList.item(l).getNodeType() == Node.ELEMENT_NODE && rdList.item(l).getNodeName().equals("SerialNo")) {rowdata.add(rdList.item(l).getTextContent());}if (rdList.item(l).getNodeType() == Node.ELEMENT_NODE && rdList.item(l).getNodeName().equals("OrderNum")) {rowdata.add(rdList.item(l).getTextContent());}if (rdList.item(l).getNodeType() == Node.ELEMENT_NODE && rdList.item(l).getNodeName().equals("OrderAmt")) {String amt = rdList.item(l).getTextContent();int amtL = amt.length();String temphead = amt.substring(0, amtL-2);String temptail = amt.substring(amtL-2,amtL);String finallyhamt = temphead + "." + temptail;totalmoney = totalmoney + Double.valueOf(finallyhamt);rowdata.add(finallyhamt);}if (rdList.item(l).getNodeType() == Node.ELEMENT_NODE && rdList.item(l).getNodeName().equals("TranTime")) {rowdata.add(rdList.item(l).getTextContent());}if (rdList.item(l).getNodeType() == Node.ELEMENT_NODE && rdList.item(l).getNodeName().equals("Result")) {rowdata.add(rdList.item(l).getTextContent());queryresult.add(rowdata);rowdata = new Vector<String>();}}}}}}}}return queryresult;} catch (ParserConfigurationException e) {e.printStackTrace();return null;} catch (FileNotFoundException e) {e.printStackTrace();return null;} catch (SAXException e) {e.printStackTrace();return null;} catch (IOException e) {e.printStackTrace();return null;}}public DOM(){} public static void main(String[] args) { Vector<Vector<String>> queryresult = new DOM().ICBCworkingDOM(); int i = 0; for (Vector<String> vector : queryresult) { i++;for (String string : vector) {//System.out.println(string);}} loger.info(""+i); } private static final Logger loger = Logger.getLogger("DOM");}