目標(biāo)：使用JOM4j遍歷所有的元素節(jié)點(diǎn)，并且取出來其中的值，結(jié)果打印到控制臺(tái)。 源代碼如下：本程序依賴DOM4j包。
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import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import java.util.*;
/**
* Created by IntelliJ IDEA.
*
User: leizhimin
*
Date: 2008-4-14 14:02:12
*
Note: Java遞歸遍歷XML所有元素
*/
public class XmlTest {
// private static Map
xmlmap = new HashMap
(); //存儲(chǔ)xml元素信息的容器 private static List
elemList = new ArrayList
(); //要測(cè)試的xml對(duì)象 private static String srcXml = "
\n" + "
\n" + "
\n" + "
某人\n" + "
\n" + "
\n" + "
10002\n" + "
西安市太白路\n" + " \n" + "
\n" + "
10002\n" + "
空ID節(jié)點(diǎn)啊\n" + " \n" + "
\n" + "
10002\n" + "
空ID節(jié)點(diǎn)啊\n" + " \n" + "\t\t\t
\n" + "\t\t\t\t
\n" + "
西安市太白路2\n" + " \n" + "\t\t\n" + " \n" + "
\n" + "
ASDF\n" + " \n" + ""; public static void main(String args[]) throws DocumentException { XmlTest test = new XmlTest(); Element root = test.getRootElement(); test.getElementList(root); String x = test.getListString(elemList); System.out.println("-----------原xml內(nèi)容------------"); System.out.println(srcXml); System.out.println("-----------解析結(jié)果------------"); System.out.println(x); } /** * 獲取根元素 * * @return * @throws DocumentException */ public Element getRootElement() throws DocumentException { Document srcdoc = DocumentHelper.parseText(srcXml); Element elem = srcdoc.getRootElement(); return elem; } /** * 遞歸遍歷方法 * * @param element */ public void getElementList(Element element) { List elements = element.elements(); if (elements.size() == 0) { //沒有子元素 String xpath = element.getPath(); String value = element.getTextTrim(); elemList.add(new Leaf(xpath, value)); } else { //有子元素 for (Iterator it = elements.iterator(); it.hasNext();) { Element elem = (Element) it.next(); //遞歸遍歷 getElementList(elem); } } } public String getListString(List
elemList) { StringBuffer sb = new StringBuffer(); for (Iterator
it = elemList.iterator(); it.hasNext();) { Leaf leaf = it.next(); sb.append(leaf.getXpath()).append(" = ").append(leaf.getValue()).append("\n"); } return sb.toString(); } } /** * xml節(jié)點(diǎn)數(shù)據(jù)結(jié)構(gòu) */ class Leaf { private String xpath; // private String value; public Leaf(String xpath, String value) { this.xpath = xpath; this.value = value; } public String getXpath() { return xpath; } public void setXpath(String xpath) { this.xpath = xpath; } public String getValue() { return value; } public void setValue(String value) { this.value = value; } }
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運(yùn)行結(jié)果： -----------原xml內(nèi)容------------
|
某人
10002
西安市太白路
10002
空ID節(jié)點(diǎn)啊
10002
空ID節(jié)點(diǎn)啊
西安市太白路2
ASDF -----------解析結(jié)果------------ /doc/person/name = 某人 /doc/person/adds/add/BS = 10002 /doc/person/adds/add/note = 西安市太白路 /doc/person/adds/add/BS = 10002 /doc/person/adds/add/note = 空ID節(jié)點(diǎn)啊 /doc/person/adds/add/BS = 10002 /doc/person/adds/add/note = 空ID節(jié)點(diǎn)啊 /doc/person/adds/add/*[name()='BS'] = /doc/person/adds/add/note = 西安市太白路2 /doc/other/name = ASDF
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Process finished with exit code 0 可以發(fā)現(xiàn)，有很多xpath相同的值域。
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