SAXtext
来源:互联网 发布:驾驶员理论培训软件 编辑:程序博客网 时间:2024/09/21 06:22
package org.accp.xml.dom;
import java.io.IOException;
import java.util.Arrays;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.ext.DefaultHandler2;
import org.xml.sax.helpers.DefaultHandler;
public class SAXTest extends DefaultHandler {
private StringBuffer buf;
private String str;
public SAXTest(){
super();
}
// public void setDocumentLocator(Locator locator){}
@Override
public void startDocument() throws SAXException {
// TODO Auto-generated method stub
buf=new StringBuffer();
System.out.println("*******开始解析文档*******");
}
public void endDocument() throws SAXException{
System.out.println("*******文档解析结束*******");
}
public void startPrefixMapping( String prefix, String uri ){
System.out.println(" 前缀映射: " + prefix +" 开始!"+ " 它的URI是:" + uri);
}
public void endPrefixMapping( String prefix ){
System.out.println(" 前缀映射: "+prefix+" 结束!");
}
// public void processingInstruction( String target, String instruction )throws SAXException{}
// public void ignorableWhitespace( char[] chars, int start, int length ) throws SAXException {}
// public void skippedEntity( String name ) throws SAXException {}
public void startElement(String namespaceURI,String localName,String qName,Attributes atts){
System.out.println("*******开始解析元素*******");
System.out.println("元素名"+qName);
for(int i=0;i<atts.getLength();i++){
System.out.println("元素名"+atts.getLocalName(i)+"属性值"+atts.getValue(i));
}
}
public void endElement(String namespaceURI,String localName,String fullName )throws SAXException{
// buf.trimToSize();
// str = buf.toString();
// System.out.println("buf = "+buf+" || length = "+buf.length());
// System.out.println("str = "+str.trim()+" || length = "+str.trim().length());
// buf.delete(0,buf.length());
System.out.println("******"+namespaceURI+"元素解析结束"+localName+"********"+fullName);
}
public void characters( char[] chars, int start, int length )throws SAXException{
//将元素内容累加到StringBuffer中
System.out.print("\t当前元素文本:");
System.out.println(Arrays.copyOfRange(chars, start,start+length));
buf.append(chars,start,length);
}
public static void main(String args[]){
try{
SAXParserFactory sf = SAXParserFactory.newInstance();
SAXParser sp = sf.newSAXParser();
SAXTest testsax=new SAXTest();
sp.parse(new InputSource("pets2.xml"),testsax);
}catch(IOException e){
e.printStackTrace();
}catch(SAXException e){
e.printStackTrace();
}catch(Exception e){
e.printStackTrace();
}
}
}