android xml文件的解析

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原创：kylin_zeng  http://blog.chinaunix.net/uid/23795897.html
在此感谢mars 老师的帮助。转载请注明原创出处，尊重他人的劳动成果。








XMLActivity.java

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1. package mars.xml;
   
2. 
   
3. import java.io.StringReader;
   
4. 
   
5. import javax.xml.parsers.SAXParserFactory;
   
6. 
   
7. import mars.utils.HttpDownloader;
   
8. 
   
9. import org.xml.sax.InputSource;
   
10. import org.xml.sax.XMLReader;
    
11. 
    
12. import android.app.Activity;
    
13. import android.os.Bundle;
    
14. import android.view.View;
    
15. import android.view.View.OnClickListener;
    
16. import android.widget.Button;
    
17. 
    
18. public class XMLActitity extends Activity {
    
19.     /** Called when the activity is first created. */
    
20.     private Button parseButton ;
    
21.     @Override
    
22.     public void onCreate(Bundle savedInstanceState) {
    
23.         super.onCreate(savedInstanceState);
    
24.         setContentView(R.layout.main);
    
25.         parseButton = (Button)findViewById(R.id.parseButton);
    
26.         parseButton.setOnClickListener(new ParseButtonListener());
    
27.     }
    
28.     
    
29.     class ParseButtonListener implements OnClickListener{
    
30. 
    
31.         @Override
    
32.         public void onClick(View v) {
    
33.             HttpDownloader hd = new HttpDownloader();
    
34.             String resultStr = hd.download("http://192.168.1.107:8081/voa1500/test.xml");
    
35.             System.out.println(resultStr);
    
36.             try{
    
37.                 //创建一个SAXParserFactory
    
38.                 SAXParserFactory factory = SAXParserFactory.newInstance();
    
39.                 XMLReader reader = factory.newSAXParser().getXMLReader();
    
40.                 //为XMLReader设置内容处理器
    
41.                 reader.setContentHandler(new MyContentHandler());
    
42.                 //开始解析文件
    
43.                 reader.parse(new InputSource(new StringReader(resultStr)));
    
44.             }
    
45.             catch(Exception e){
    
46.                 e.printStackTrace();
    
47.             }
    
48.         }
    
49.         
    
50.     }
    
51. }

MyContentHandler.java

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1. package mars.xml;
   
2. 
   
3. import org.xml.sax.Attributes;
   
4. import org.xml.sax.SAXException;
   
5. import org.xml.sax.helpers.DefaultHandler;
   
6. 
   
7. public class MyContentHandler extends DefaultHandler {
   
8.     String hisname, address, money, sex, status;
   
9.     String tagName;
   
10. 
    
11.     public void startDocument() throws SAXException {
    
12.         System.out.println("````````begin````````");
    
13.     }
    
14. 
    
15.     public void endDocument() throws SAXException {
    
16.         System.out.println("````````end````````");
    
17.     }
    
18. 
    
19.     public void startElement(String namespaceURI, String localName,
    
20.             String qName, Attributes attr) throws SAXException {
    
21.         tagName = localName;
    
22.         if (localName.equals("worker")) {
    
23.             //获取标签的全部属性
    
24.             for (int i = 0; i < attr.getLength(); i++) {
    
25.                 System.out.println(attr.getLocalName(i) + "=" + attr.getValue(i));
    
26.             }
    
27.         }
    
28.     }
    
29. 
    
30.     public void endElement(String namespaceURI, String localName, String qName)
    
31.             throws SAXException {
    
32.         //在workr标签解析完之后，会打印出所有得到的数据
    
33.         tagName = "";
    
34.         if (localName.equals("worker")) {
    
35.             this.printout();
    
36.         }
    
37.     }
    
38.     public void characters(char[] ch, int start, int length)
    
39.             throws SAXException {
    
40.         if (tagName.equals("name"))
    
41.             hisname = new String(ch, start, length);
    
42.         else if (tagName.equals("sex"))
    
43.             sex = new String(ch, start, length);
    
44.         else if (tagName.equals("status"))
    
45.             status = new String(ch, start, length);
    
46.         else if (tagName.equals("address"))
    
47.             address = new String(ch, start, length);
    
48.         else if (tagName.equals("money"))
    
49.             money = new String(ch, start, length);
    
50.     }
    
51. 
    
52.     private void printout() {
    
53.         System.out.print("name: ");
    
54.         System.out.println(hisname);
    
55.         System.out.print("sex: ");
    
56.         System.out.println(sex);
    
57.         System.out.print("status: ");
    
58.         System.out.println(status);
    
59.         System.out.print("address: ");
    
60.         System.out.println(address);
    
61.         System.out.print("money: ");
    
62.         System.out.println(money);
    
63.         System.out.println();
    
64.     }
    
65. 
    
66. }

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