dom4j解析xml文件和字符串

dom4j解析xml文件和字符串

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• java基础

XML EXT 

解析xml字符串，如下

Java代码  

1. public static void main(String[] args) {  
2.         //System.out.println("cccc");  
3.         String fStr="<?xml version='1.0' encoding='UTF-8'?>" +  
4.                 "<ROOT test='test123' cod='cod123'><Name>AAA</Name><Number>BBB</Number>" +  
5.                 "<Recording>http://10.15.57.174/wav/2008/10/29/WG37100/ext37102/10.15.57.71!1~R!10292008_064002!37102!67256479!Ext!NA!1179371583!R.wav</Recording>" +  
6.                 "<Orders>有</Orders></ROOT>";  
7.         try {  
8.             SAXReader reader = new SAXReader();  
9.              Document doc;   
10.              doc = DocumentHelper.parseText(fStr);   
11.   
12.             //Document doc = reader.read(ffile); //读取一个xml的文件  
13.             Element root = doc.getRootElement();  
14.             Attribute testCmd= root.attribute("test");  
15.             System.out.println(testCmd.getName()+"-***--"+testCmd.getValue());                         
16.             Element eName = root.element("Name");  
17.             System.out.println("节点内容*--"+eName.getTextTrim());        
18.           
19.         } catch (Exception e) {  
20.             e.printStackTrace();  
21.         }  
22.     }  

 

 

解析xml文件，xml文件如下

Xml代码  

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <students>  
3.     <student age="25">  
4.         <name>AAA</name>  
5.         <collage leader='班长'>xxx学校</collage>  
6.         <telephone>13728704450</telephone>  
7.         <notes>男，1958年出生</notes>  
8.     </student>  
9.     <student age="21">  
10.         <name>BBB</name>  
11.         <collage leader='学生'>YYY学校</collage>  
12.         <telephone>1372sadgasg4450</telephone>  
13.         <notes>男，1968年出生,出生地长沙</notes>  
14.     </student>  
15.     <student age="29">  
16.         <name>CCC</name>  
17.         <collage leader='班主任'>北京大学</collage>  
18.         <telephone>13828704450</telephone>  
19.         <notes>女，漂亮</notes>  
20.     </student>  
21. </students>  

 

解析的代码如下

 

Java代码  

1. public void iterateWholeXML(String filename, HashMap<String, String> hm) {  
2.         SAXReader saxReader = new SAXReader();  
3.         try {  
4.             Document document = saxReader.read(new File(filename));  
5.             Element root = document.getRootElement();  
6.             // 用于记录学生编号的变量  
7.             int num = -1;  
8.             // 遍历根结点（students）的所有孩子节点（肯定是student节点）  
9.             for (Iterator iter = root.elementIterator(); iter.hasNext();) {  
10.                 Element element = (Element) iter.next();  
11.                 num++;  
12.                 // 获取person节点的age属性的值  
13.                 Attribute ageAttr = element.attribute("age");  
14.                 if (ageAttr != null) {  
15.                     String age = ageAttr.getValue();  
16.                     if (age != null && !age.equals("")) {  
17.                         hm.put(element.getName() + "-" + ageAttr.getName()  
18.                                 + num, age);  
19.                     } else {  
20.                         hm.put(element.getName() + "-" + ageAttr.getName()  
21.                                 + num, "20");  
22.                     }  
23.                 } else {  
24.                     hm.put(element.getName() + "-age" + num, "20");  
25.                 }  
26.                 // 遍历student结点的所有孩子节点（即name，college，telphone，notes），并进行处理  
27.                 for (Iterator iterInner = element.elementIterator(); iterInner  
28.                         .hasNext();) {  
29.                     Element elementInner = (Element) iterInner.next();  
30.                     if (elementInner.getName().equals("collage")) {  
31.                         hm.put(elementInner.getName() + num, elementInner  
32.                                 .getText());  
33.                         // 获取college节点的leader属性的值  
34.                         Attribute leaderAttr = elementInner.attribute("leader");  
35.                         if (leaderAttr != null) {  
36.                             String leader = leaderAttr.getValue();  
37.                             if (leader != null && !leader.equals("")) {  
38.                                 hm.put(elementInner.getName() + "-"  
39.                                         + leaderAttr.getName() + num, leader);  
40.                             } else {  
41.                                 hm.put(elementInner.getName() + "-"  
42.                                         + leaderAttr.getName() + num, "leader");  
43.                             }  
44.                         } else {  
45.                             hm.put(elementInner.getName() + "-leader" + num,  
46.                                     "leader");  
47.                         }  
48.                     } else {  
49.                         hm.put(elementInner.getName() + num, elementInner  
50.                                 .getText());  
51.                     }  
52.                 }  
53.             }  
54.         } catch (DocumentException e) {  
55.             e.printStackTrace();  
56.         }  
57.     }