本文共 3479 字，大约阅读时间需要 11 分钟。

最近有用到，简单写一下。不感知内容，递归调用。

package com.ferraborghini.parser;import java.io.File;import java.io.IOException;import java.util.HashMap;import java.util.Map;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.NamedNodeMap;import org.w3c.dom.Node;import org.w3c.dom.NodeList;import org.xml.sax.SAXException;public class XmlParser {    public static void main(String[] args) throws SAXException, IOException,            ParserConfigurationException {        File xml = new File("conf/test.xml");        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();        DocumentBuilder builder = factory.newDocumentBuilder();        Document doc = builder.parse(xml);        Element element = doc.getDocumentElement();        Map
   
     result = getMap(element);        int level = 0;        printMap(result, level);    }    private static void printMap(Map
    
      result, int level) {        for (String key : result.keySet()) {            if (result.get(key) instanceof Map) {                System.out.println("key: "+ key);                printMap((Map)result.get(key), ++level);                level--;            } else {                for (int i = 0; i < level*5; i++) {
                       System.out.print(" ");                }                System.out.println("key: "+ key + " value: "+ result.get(key));            }        }    }    public static Map
     
       getMap(Node node) {        Map
      
        domMap = new HashMap();        if (node.hasAttributes()) {            NamedNodeMap attrs = node.getAttributes();            for (int i = 0; i < attrs.getLength(); i++) {
                   domMap.put(attrs.item(i).getNodeName(), attrs.item(i)                        .getNodeValue());//              System.out.println("attr name: " + attrs.item(i).getNodeName());            }        }        NodeList nodelist = node.getChildNodes();        for (int i = 0; i < nodelist.getLength(); i++) {
               Node child = nodelist.item(i);            if (child.getNodeType() == Node.ELEMENT_NODE) {                String result = getChild(child);                if (result == null) {                    domMap.put(child.getNodeName(), getMap(child));                } else {                    domMap.put(child.getNodeName(), result);                }            }        }        return domMap;    }    /**     * 如果下一个节点是text node获取内容     * @param node     * @return     */    public static String getChild(Node node) {        String result = null;        NodeList nodelist = node.getChildNodes();        for (int i = 0; i < nodelist.getLength(); i++) {
               if (nodelist.item(i).getNodeType() == Node.TEXT_NODE                    && (nodelist.item(i).getTextContent().matches("\\S+"))) {                result = nodelist.item(i).getTextContent();            }        }        return result;    }}
      
     
    
   

网上随便找了一个xml文件：

     
         
              
     
      man
               
     
      25
           
          
              
     
      woman
               
     
      45
           
      
   

打印结果：

key: bb value: bbbbbkey: yy value: yyyyykey: employee1     key: sex value: man     key: name value: xiaowang     key: id value: 11     key: age value: 25key: employee2     key: sex value: woman     key: name value: liyi     key: id value: 12     key: age value: 45

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