testvalidate.java

xml 文件解析

package tdtAndXML;
import java.io.*;
import java.util.Scanner;

import javax.xml.parsers.*;
import org.xml.sax.helpers.*;
import org.xml.sax.*;

import org.w3c.dom.*;

public class TestValidate {
	public static void main(String args[])
	{
        String fileName = "E:\\test_xml\\TestXML\\src\\tdtAndXML\\Cha3_1.xml";
		try{       
			DocumentBuilderFactory factory = 
				DocumentBuilderFactory.newInstance();
            factory.setValidating(true);            
			DocumentBuilder builder = factory.newDocumentBuilder();
			MyHandler handler = new MyHandler();
			builder.setErrorHandler(handler);
			Document document = (Document)builder.parse(new File(fileName));
			if (handler.errorMessage == null) {
                System.out.println("xml is ok");
                
            } else {
                System.out.println("xml is wrong");
            }
            		
		}
		catch(Exception e)
		{
			System.out.println(e);
		}
	}
}

class MyHandler extends DefaultHandler {
    String errorMessage = null;
    
    public void error(SAXParseException e) throws SAXException
    {
        errorMessage = e.getMessage();
        System.out.println("yiban丗 error:" + errorMessage);
    }
    public void fatalError(SAXParseException e) throws SAXException
    {
        errorMessage = e.getMessage();
        System.out.println("te shu de " + errorMessage);
    }
}