使用 Dom4j 将 XML 转换为 MAP

本文为转载：http://blog.sina.com.cn/s/blog_6145ed810100z164.html  原文地址。

自己仅作备忘录方便查找留了一份。

这是解析Xml 的辅助类

 package com.zwr.www.util;

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;

 import org.dom4j.Document;
 import org.dom4j.Element;

 public class XmlUtil {
     @SuppressWarnings({ "rawtypes" })
     public static Map<String, Object> Dom2Map(Document doc) {
         Map<String, Object> map = new HashMap<String, Object>();
         if (doc == null)
             return map;
         Element root = doc.getRootElement();
         for (Iterator iterator = root.elementIterator(); iterator.hasNext();) {
             Element e = (Element) iterator.next();
             List list = e.elements();
             if (list.size() > 0) {
                 map.put(e.getName(), Dom2Map(e));
             } else
                 map.put(e.getName(), e.getText());
         }
         return map;
     }

     @SuppressWarnings({ "unchecked", "rawtypes" })
     public static Map Dom2Map(Element e) {
         Map map = new HashMap();
         List list = e.elements();
         if (list.size() > 0) {
             for (int i = 0; i < list.size(); i++) {
                 Element iter = (Element) list.get(i);
                 List mapList = new ArrayList();

                 if (iter.elements().size() > 0) {
                     Map m = Dom2Map(iter);
                     if (map.get(iter.getName()) != null) {
                         Object obj = map.get(iter.getName());
                         if (!obj.getClass().getName()
                                 .equals("java.util.ArrayList")) {
                             mapList = new ArrayList();
                             mapList.add(obj);
                             mapList.add(m);
                         }
                         if (obj.getClass().getName()
                                 .equals("java.util.ArrayList")) {
                             mapList = (List) obj;
                             mapList.add(m);
                         }
                         map.put(iter.getName(), mapList);
                     } else
                         map.put(iter.getName(), m);
                 } else {
                     if (map.get(iter.getName()) != null) {
                         Object obj = map.get(iter.getName());
                         if (!obj.getClass().getName()
                                 .equals("java.util.ArrayList")) {
                             mapList = new ArrayList();
                             mapList.add(obj);
                             mapList.add(iter.getText());
                         }
                         if (obj.getClass().getName()
                                 .equals("java.util.ArrayList")) {
                             mapList = (List) obj;
                             mapList.add(iter.getText());
                         }
                         map.put(iter.getName(), mapList);
                     } else
                         map.put(iter.getName(), iter.getText());
                 }
             }
         } else
             map.put(e.getName(), e.getText());
         return map;
     }
 }

下面是测试类

 package com.zwr.www.test;

 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.util.Map;

 import org.dom4j.Document;
 import org.dom4j.DocumentException;
 import org.dom4j.DocumentHelper;

 import com.zwr.www.util.XmlUtil;

 public class XmlToMapTest {
     public static void main(String[] args) throws DocumentException, IOException {
         FileInputStream fis = new FileInputStream("bin/message.xml");
         byte[] b = new byte[fis.available()];
         fis.read(b);
         String str = new String(b);
         Document doc = DocumentHelper.parseText(str);
         System.out.println(doc.asXML());
         long beginTime = System.currentTimeMillis();
         Map<String, Object> map = XmlUtil.Dom2Map(doc);
         System.out.println(map.toString());
         System.out.println("Use time:" + (System.currentTimeMillis() - beginTime));
     }
 }

下面是测试用的xml文件

 <message>
   <head>
     <trade_time>2014-11-12 05:04:05</trade_time>
     <trade_type>R1000002</trade_type>
     <content_lenge>1</content_lenge>
     <content_trans_type>0</content_trans_type>
     <check_code></check_code>
   </head>
   <body class="authorzation">
     <batch_no>20141105112233</batch_no>
     <authorzation_list>
       <p13>
         <p13_no>c_xiaoming-001</p13_no>
         <followAcc_list>
           <followacc>
             <follow_acc>xiaoliu1</follow_acc>
             <branch_org_code>9000000000001</branch_org_code>
             <company>520000123</company>
             <aci_list>
               <aci>
                 <aci_no>1001</aci_no>
                 <scope_list>
                   <scope>
                     <scope_no>a0001</scope_no>
                     <scope_type>TXT</scope_type>
                     <scope_value_list>
                       <scope_value>
                         <min_value>abc</min_value>
                         <max_value></max_value>
                       </scope_value>
                       <scope_value>
                         <min_value>abc</min_value>
                         <max_value>123</max_value>
                       </scope_value>
                     </scope_value_list>
                   </scope>
                   <scope>
                     <scope_no>a0002</scope_no>
                     <scope_type>TXT</scope_type>
                     <scope_value_list>
                       <scope_value>
                         <min_value>abc</min_value>
                         <max_value>123</max_value>
                       </scope_value>
                     </scope_value_list>
                   </scope>
                 </scope_list>
                                 <opertion_type>1</opertion_type>
               </aci>
             </aci_list>
           </followacc>
         </followAcc_list>
       </p13>

       <p13>
         <p13_no>c_xiaoming-002</p13_no>
         <followAcc_list>
           <followacc>
             <follow_acc>xiaoliu2</follow_acc>
             <branch_org_code>9000000000001</branch_org_code>
             <company>520000123</company>
             <aci_list>
               <aci>
                 <aci_no>1002</aci_no>
                 <scope_list>
                   <scope>
                     <scope_no>a0001</scope_no>
                     <scope_type>TXT</scope_type>
                     <scope_value_list>
                       <scope_value>
                         <min_value>abc</min_value>
                         <max_value></max_value>
                       </scope_value>
                       <scope_value>
                         <min_value>abc</min_value>
                         <max_value>123</max_value>
                       </scope_value>
                     </scope_value_list>
                   </scope>
                   <scope>
                     <scope_no>a0002</scope_no>
                     <scope_type>TXT</scope_type>
                     <scope_value_list>
                       <scope_value>
                         <min_value>abc</min_value>
                         <max_value>123</max_value>
                       </scope_value>
                     </scope_value_list>
                   </scope>
                 </scope_list>
                                 <opertion_type>1</opertion_type>
               </aci>
             </aci_list>
           </followacc>
         </followAcc_list>
       </p13>

     </authorzation_list>
   </body>
 </message>

在此感谢 郑君华