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

 1 package com.zwr.www.util;
 2 
 3 import java.util.ArrayList;
 4 import java.util.HashMap;
 5 import java.util.Iterator;
 6 import java.util.List;
 7 import java.util.Map;
 8 
 9 import org.dom4j.Document;
10 import org.dom4j.Element;
11 
12 public class XmlUtil {
13     @SuppressWarnings({ "rawtypes" })
14     public static Map<String, Object> Dom2Map(Document doc) {
15         Map<String, Object> map = new HashMap<String, Object>();
16         if (doc == null)
17             return map;
18         Element root = doc.getRootElement();
19         for (Iterator iterator = root.elementIterator(); iterator.hasNext();) {
20             Element e = (Element) iterator.next();
21             List list = e.elements();
22             if (list.size() > 0) {
23                 map.put(e.getName(), Dom2Map(e));
24             } else
25                 map.put(e.getName(), e.getText());
26         }
27         return map;
28     }
29 
30     @SuppressWarnings({ "unchecked", "rawtypes" })
31     public static Map Dom2Map(Element e) {
32         Map map = new HashMap();
33         List list = e.elements();
34         if (list.size() > 0) {
35             for (int i = 0; i < list.size(); i++) {
36                 Element iter = (Element) list.get(i);
37                 List mapList = new ArrayList();
38 
39                 if (iter.elements().size() > 0) {
40                     Map m = Dom2Map(iter);
41                     if (map.get(iter.getName()) != null) {
42                         Object obj = map.get(iter.getName());
43                         if (!obj.getClass().getName()
44                                 .equals("java.util.ArrayList")) {
45                             mapList = new ArrayList();
46                             mapList.add(obj);
47                             mapList.add(m);
48                         }
49                         if (obj.getClass().getName()
50                                 .equals("java.util.ArrayList")) {
51                             mapList = (List) obj;
52                             mapList.add(m);
53                         }
54                         map.put(iter.getName(), mapList);
55                     } else
56                         map.put(iter.getName(), m);
57                 } else {
58                     if (map.get(iter.getName()) != null) {
59                         Object obj = map.get(iter.getName());
60                         if (!obj.getClass().getName()
61                                 .equals("java.util.ArrayList")) {
62                             mapList = new ArrayList();
63                             mapList.add(obj);
64                             mapList.add(iter.getText());
65                         }
66                         if (obj.getClass().getName()
67                                 .equals("java.util.ArrayList")) {
68                             mapList = (List) obj;
69                             mapList.add(iter.getText());
70                         }
71                         map.put(iter.getName(), mapList);
72                     } else
73                         map.put(iter.getName(), iter.getText());
74                 }
75             }
76         } else
77             map.put(e.getName(), e.getText());
78         return map;
79     }
80 }

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下面是测试类

 1 package com.zwr.www.test;
 2 
 3 import java.io.FileInputStream;
 4 import java.io.FileNotFoundException;
 5 import java.io.IOException;
 6 import java.util.Map;
 7 
 8 import org.dom4j.Document;
 9 import org.dom4j.DocumentException;
10 import org.dom4j.DocumentHelper;
11 
12 import com.zwr.www.util.XmlUtil;
13 
14 public class XmlToMapTest {
15     public static void main(String[] args) throws DocumentException, IOException {
16         FileInputStream fis = new FileInputStream("bin/message.xml");
17         byte[] b = new byte[fis.available()];
18         fis.read(b);
19         String str = new String(b);
20         Document doc = DocumentHelper.parseText(str);
21         System.out.println(doc.asXML());
22         long beginTime = System.currentTimeMillis();
23         Map<String, Object> map = XmlUtil.Dom2Map(doc);
24         System.out.println(map.toString());
25         System.out.println("Use time:" + (System.currentTimeMillis() - beginTime));
26     }
27 }

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下面是测试用的xml文件

  1 <message>
  2   <head>
  3     <trade_time>2014-11-12 05:04:05</trade_time>
  4     <trade_type>R1000002</trade_type>
  5     <content_lenge>1</content_lenge>
  6     <content_trans_type>0</content_trans_type>
  7     <check_code></check_code>
  8   </head>
  9   <body class="authorzation">
 10     <batch_no>20141105112233</batch_no>
 11     <authorzation_list>
 12       <p13>
 13         <p13_no>c_xiaoming-001</p13_no>
 14         <followAcc_list>
 15           <followacc>
 16             <follow_acc>xiaoliu1</follow_acc>
 17             <branch_org_code>9000000000001</branch_org_code>
 18             <company>520000123</company>
 19             <aci_list>
 20               <aci>
 21                 <aci_no>1001</aci_no>
 22                 <scope_list>
 23                   <scope>
 24                     <scope_no>a0001</scope_no>
 25                     <scope_type>TXT</scope_type>
 26                     <scope_value_list>
 27                       <scope_value>
 28                         <min_value>abc</min_value>
 29                         <max_value></max_value>
 30                       </scope_value>
 31                       <scope_value>
 32                         <min_value>abc</min_value>
 33                         <max_value>123</max_value>
 34                       </scope_value>
 35                     </scope_value_list>
 36                   </scope>
 37                   <scope>
 38                     <scope_no>a0002</scope_no>
 39                     <scope_type>TXT</scope_type>
 40                     <scope_value_list>
 41                       <scope_value>
 42                         <min_value>abc</min_value>
 43                         <max_value>123</max_value>
 44                       </scope_value>
 45                     </scope_value_list>
 46                   </scope>
 47                 </scope_list>
 48                                 <opertion_type>1</opertion_type>
 49               </aci>
 50             </aci_list>
 51           </followacc>
 52         </followAcc_list>
 53       </p13>
 54       
 55       <p13>
 56         <p13_no>c_xiaoming-002</p13_no>
 57         <followAcc_list>
 58           <followacc>
 59             <follow_acc>xiaoliu2</follow_acc>
 60             <branch_org_code>9000000000001</branch_org_code>
 61             <company>520000123</company>
 62             <aci_list>
 63               <aci>
 64                 <aci_no>1002</aci_no>
 65                 <scope_list>
 66                   <scope>
 67                     <scope_no>a0001</scope_no>
 68                     <scope_type>TXT</scope_type>
 69                     <scope_value_list>
 70                       <scope_value>
 71                         <min_value>abc</min_value>
 72                         <max_value></max_value>
 73                       </scope_value>
 74                       <scope_value>
 75                         <min_value>abc</min_value>
 76                         <max_value>123</max_value>
 77                       </scope_value>
 78                     </scope_value_list>
 79                   </scope>
 80                   <scope>
 81                     <scope_no>a0002</scope_no>
 82                     <scope_type>TXT</scope_type>
 83                     <scope_value_list>
 84                       <scope_value>
 85                         <min_value>abc</min_value>
 86                         <max_value>123</max_value>
 87                       </scope_value>
 88                     </scope_value_list>
 89                   </scope>
 90                 </scope_list>
 91                                 <opertion_type>1</opertion_type>
 92               </aci>
 93             </aci_list>
 94           </followacc>
 95         </followAcc_list>
 96       </p13>
 97       
 98     </authorzation_list>
 99   </body>
100 </message>

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在此感谢 郑君华