java利用dom4j递归输出所有节点-白红宇

java利用dom4j递归输出所有节点

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发布时间：2019-06-27

本文共 4302 字，大约阅读时间需要 14 分钟。

test.xml文件

Leaf.java

package com.lushuifa.dom;public class Leaf {	private String xpath;// 	private String value;	private String domName;	public String getDomName() {		return domName;	}	public void setDomName(String domName) {		this.domName = domName;	}	public Leaf(String xpath, String value,String domName) {		this.xpath = xpath;		this.value = value;		this.domName = domName;	}	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;	}}

DomUtil.java文件代码

package com.lushuifa.dom;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import org.dom4j.Document;import org.dom4j.DocumentException;import org.dom4j.Element;import org.dom4j.io.SAXReader;public class DomUtil {			public Document readXML() {          Document document = null;          SAXReader saxReader = new SAXReader();          try {              document = saxReader.read("F:\\testSpace\\Dom4jTest\\src\\test.xml");          } catch (DocumentException e) {              e.printStackTrace();          }          return document;      }  		 /**      * 获取根元素      *      * @return      * @throws DocumentException      */     public Element getRootElement(){         try {			Document srcdoc = this.readXML(); 			Element elem = srcdoc.getRootElement(); 			return elem;		} catch (Exception e) {			// TODO Auto-generated catch block			e.printStackTrace();		}		return null;     }     /**      * 递归遍历方法      *      * @param element      */     public List
     
       getElementList(Element element,ArrayList
      
        elemList) {         List elements = element.elements();         if (elements.size() == 0) {             //没有子元素             String xpath = element.getPath();             String value = element.getTextTrim();             String domName = element.getName();            elemList.add(new Leaf(xpath, value,domName));         } else {             //有子元素             for (Iterator it = elements.iterator(); it.hasNext();) {                 Element elem = (Element) it.next();                 //递归遍历                 getElementList(elem,elemList);             }         }        return elemList;    }        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();     }         public static void main(String[] args) {    	DomUtil domUtil = new DomUtil();    	System.out.println("得到document对象是："+domUtil.readXML());;    	Element rootElement =  domUtil.getRootElement();    	List
         
           list = domUtil.getElementList(rootElement,new ArrayList
          
           ()); System.out.println("list=="+list); for (Leaf leaf : list) { System.out.println("节点路径："+leaf.getXpath()); System.out.println("节点名称："+leaf.getDomName()); System.out.println("节点值："+leaf.getValue()); } }}