xml文件：
Xml代码
<?xml version="1.0" encoding="GB2312"?> <RESULT> <VALUE> <NO>A1234</NO> <ADDR>河南省郑州市</ADDR> </VALUE> <VALUE> <NO>B1234</NO> <ADDR>河南省郑州市二七区</ADDR> </VALUE> </RESULT>
第一种 DOM 实现方法：
Java代码
1 import java.io.File;
2 import javax.xml.parsers.DocumentBuilder;
3 import javax.xml.parsers.DocumentBuilderFactory;
4 import org.w3c.dom.Document;
5 import org.w3c.dom.NodeList;
6 public class MyXMLReader2DOM {
7 public static void main(String arge[]) {
8 long lasting = System.currentTimeMillis();
9 try {
10 File f = new File("data_10k.xml");
11 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
12 DocumentBuilder builder = factory.newDocumentBuilder();
13 Document doc = builder.parse(f);
14 NodeList nl = doc.getElementsByTagName("VALUE");
15 for (int i = 0; i < nl.getLength(); i++) {
16 System.out.print("车牌号码:"+ doc.getElementsByTagName("NO").item(i).getFirstChild().getNodeValue());
17 System.out.println("车主地址:"+ doc.getElementsByTagName("ADDR").item(i).getFirstChild().getNodeValue());
18 System.out.println("运行时间：" + (System.currentTimeMillis() - lasting)
19 + "毫秒");
20 }
21 }
22 } catch (Exception e) {
23 e.printStackTrace();
24 }
25 }
26 }
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第二种，DOM4J实现方法：
Java代码
1 import java.io.*;
2 import java.util.*;
3 import org.dom4j.*;
4 import org.dom4j.io.*;
5 public class MyXMLReader2DOM4J {
6 public static void main(String arge[]) {
7 long lasting = System.currentTimeMillis();
8 try {
9 File f = new File("data_10k.xml");
10 SAXReader reader = new SAXReader();
11 Document doc = reader.read(f);
12 Element root = doc.getRootElement();
13 Element foo;
14 for (Iterator i = root.elementIterator("VALUE"); i.hasNext();) {
15 foo = (Element) i.next();
16 System.out.print("车牌号码:" + foo.elementText("NO"));
17 System.out.println("车主地址:" + foo.elementText("ADDR"));
18 }
19 System.out.println("运行时间：" + (System.currentTimeMillis() - lasting)
20 + "毫秒");
21 }
22 } catch (Exception e) {
23 e.printStackTrace();
24 }
25 }
26 }
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第三种 JDOM实现方法：
Java代码
1 import java.io.*;
2 import java.util.*;
3 import org.jdom.*;
4 import org.jdom.input.*;
5 public class MyXMLReader2JDOM {
6 public static void main(String arge[]) {
7 long lasting = System.currentTimeMillis();
8 try {
9 SAXBuilder builder = new SAXBuilder();
10 Document doc = builder.build(new File("data_10k.xml"));
11 Element foo = doc.getRootElement();
12 List allChildren = foo.getChildren();
13 for (int i = 0; i < allChildren.size(); i++) {
14 System.out.print("车牌号码:"+ ((Element) allChildren.get(i)).getChild("NO").getText());
15 System.out.println("车主地址:"+ ((Element) allChildren.get(i)).getChild("ADDR").getText());
16 }
17 System.out.println("运行时间：" + (System.currentTimeMillis() - lasting)
18 + "毫秒");
19 }
20 } catch (Exception e) {
21 e.printStackTrace();
22 }
23 }
24 }
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第四种SAX实现方法：
Java代码
1 import javax.xml.parsers.SAXParser;
2 import javax.xml.parsers.SAXParserFactory;
3 import org.xml.sax.Attributes;
4 import org.xml.sax.InputSource;
5 import org.xml.sax.SAXException;
6 import org.xml.sax.helpers.DefaultHandler;
7 public class MyXMLReader2SAX extends DefaultHandler {
8 java.util.Stack tags = new java.util.Stack();
9 public MyXMLReader2SAX() {
10 super();
11 }
12 public static void main(String args[]) {
13 long lasting = System.currentTimeMillis();
14 try {
15 SAXParserFactory sf = SAXParserFactory.newInstance();
16 SAXParser sp = sf.newSAXParser();
17 MyXMLReader2SAX reader = new MyXMLReader2SAX();
18 sp.parse(new InputSource("data_10k.xml"), reader);
19 } catch (Exception e) {
20 e.printStackTrace();
21 }
22 System.out.println("运行时间：" + (System.currentTimeMillis() - lasting)
23 + "毫秒");
24 }
25 public void characters(char ch[], int start, int length)
26 throws SAXException {
27 String tag = (String) tags.peek();
28 if (tag.equals("NO")) {
29 System.out.print("车牌号码：" + new String(ch, start, length));
30 }
31 if (tag.equals("ADDR")) {
32 System.out.println("地址:" + new String(ch, start, length));
33 }
34 }
35 public void startElement(String uri, String localName, String qName,
36 Attributes attrs) {
37 tags.push(qName);
38 }
39 }
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时间： 2024-08-07 17:02:15