java xml 递归_Java递归遍历XML所有元素
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 = "<?xml version=\"1.0\" encoding=\"GBK\"?>\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(méi)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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