eclipse编写xml问题~~~~~

Question

文件students.xml:[code=XAML]
<?xml version="1.0" encoding="BG2312"?><?xml-stylesheet type="text/xsl" href="students.xsl"?><students>
  <student sn="01">
    <name>张三</name>
    <age>18</age>
  </student>
  
  <student sn="02">
    <name>李四</name>
    <age>20</age>
  </student>
</students>[/code]文件DOMStudentsInfo.java:import java.io.File;
import java.io.IOException;import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.*;
import org.xml.sax.SAXException;public class DOMStudentsInfo
{
public static void main(String[] args)
{
DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance();
try
{
DocumentBuilder db=dbf.newDocumentBuilder();
File file=new File("students.xml");
Document doc=db.parse(file);

NodeList nl=doc.getElementsByTagName("student");

int len=nl.getLength();
for(int i=0;i<len;i++)
{
Element eltStu=(Element)nl.item(i);
Node eltName=eltStu.getElementsByTagName("name").item(0);
Node eltAge=eltStu.getElementsByTagName("age").item(0);

String name=eltName.getFirstChild().getNodeValue();
String age=eltAge.getFirstChild().getNodeValue();

System.out.println("姓名："+name);
System.out.println("年龄："+age);
System.out.println("-------------------------");
}
}
catch(ParserConfigurationException e){e.printStackTrace();}
catch(SAXException e){e.printStackTrace();}
catch(IOException e){e.printStackTrace();}
}
}编译通过~~~~运行异常为：
java.io.UnsupportedEncodingException: BG2312
at sun.nio.cs.StreamDecoder.forInputStreamReader(Unknown Source)
at java.io.InputStreamReader.<init>(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.createReader(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.setEncoding(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanXMLDeclOrTextDecl(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$XMLDeclDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)
at DOMStudentsInfo.main(DOMStudentsInfo.java:21)请问此异常是怎么回事？
非常感谢~~~~~~~~然后这时发现该平台不支持BG2312编码~~~~~则安装了XMLBuddy_2.0.9,我的eclipse是3.2.0版本的~~~~不知道安装XMLBuddy的对不对?
再次感谢~~~~~~

Answer 1

你的编码错了BG2312--->GB2312
或者改成其他的格式utf-8

Answer 2

<?xml version="1.0" encoding="GB2312"?><?xml-stylesheet type="text/xsl" href="students.xsl"?><students>
  <student sn="01">
    <name>张三</name>
    <age>18</age>
  </student>
  
  <student sn="02">
    <name>李四</name>
    <age>20</age>
  </student>
</students>