XML的两种解析方式，Dom4j and SAX parse

 1  　　　　　　SAXReader reader = new SAXReader();
 2             InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream("data.xml");
 3 //            InputStream is = new FileInputStream(new File("C:/test/data.xml"));
 4             Document doc = reader.read(is);
 5             Element ele = doc.getRootElement();
 6             @SuppressWarnings("unchecked")
 7             List<Element> list = ele.elements();
 8             for(Element elelist : list){
 9                 if("driver".equals(elelist.getName())){
10                     driver = elelist.getTextTrim();
11                 }
12                 if("url".equals(elelist.getName())){
13                     url = elelist.getTextTrim();
14                 }
15                 if("password".equals(elelist.getName())){
16                     password = elelist.getTextTrim();
17                 }
18                 if("username".equals(elelist.getName())){
19                     username = elelist.getTextTrim();
20                 }
21                     
22             }

 1 package com.devil.util;
 2 
 3 import java.io.IOException;
 4 
 5 import javax.xml.parsers.ParserConfigurationException;
 6 import javax.xml.parsers.SAXParser;
 7 import javax.xml.parsers.SAXParserFactory;
 8 
 9 import org.xml.sax.Attributes;
10 import org.xml.sax.SAXException;
11 import org.xml.sax.helpers.DefaultHandler;
12 
13 public class SAXParse extends DefaultHandler {
14     private static String driver = null;
15     private static String url = null;
16     private static String username = null;
17     private static String password = null;
18     private String elementValue = null;
19 
20     static {
21         SAXParserFactory factory = SAXParserFactory.newInstance();
22         try {
23             SAXParser parse = factory.newSAXParser();
24             parse.parse(Thread.currentThread().getContextClassLoader().getResourceAsStream("data.xml"), new SAXParse());
25         } catch (ParserConfigurationException e) {
26             e.printStackTrace();
27         } catch (SAXException e) {
28             e.printStackTrace();
29         } catch (IOException e) {
30             e.printStackTrace();
31         }
32         
33     }
34     @Override
35     public void startElement(String paramString1, String localName,
36             String qname, Attributes pattr) throws SAXException {
37     }
38 
39     @Override
40     public void characters(char[] ch, int start, int end) throws SAXException {
41         elementValue = new String(ch, start, end);
42 
43     }
44 
45     @Override
46     public void endElement(String NamespaceUrl, String localName, String qname)
47             throws SAXException {
48 
49         if (qname.equals("driver")) {
50             driver = elementValue.trim();
51         }
52         if ("url".equals(qname)) {
53             url = elementValue.trim();
54         }
55         if ("password".equals(qname)) {
56             password = elementValue.trim();
57         }
58         if ("username".equals(qname)) {
59             username = elementValue.trim();
60         }
61 
62     }
63 
64     public static String getDriver() {
65         return driver;
66     }
67 
68     public static String getUrl() {
69         return url;
70     }
71 
72     public static String getUsername() {
73         return username;
74     }
75 
76     public static String getPassword() {
77         return password;
78     }
79 
80     
81     public static void main(String[] args)  {
82         
83         System.out.println(SAXParse.getDriver());
84     }
85 }