Problem in SAX XSD schema validator

Question

hi
I've tried this code to validate XML using xsd file:
public static void validate(String xmlFilePath, URL schemaFileUrl)
        try
            SAXParserFactory factory = SAXParserFactory.newInstance();
            factory.setValidating(false);// stop standard validation to allow
                                            // custom schema
            factory.setNamespaceAware(true);
            SchemaFactory schemaFactory = SchemaFactory
                    .newInstance(javax.xml.XMLConstants.W3C_XML_SCHEMA_NS_URI);
            factory.setSchema(schemaFactory.newSchema(schemaFileUrl));
            SAXParser parser = factory.newSAXParser();
            XMLReader reader = parser.getXMLReader();
            // Register the error handler
            reader.setErrorHandler(new JS_ValidationError());
            // Parse the file as the first argument on the command-line
            reader.parse(xmlFilePath);
        catch (SAXException e)
            System.out.println("Error: " + e.getMessage());
            e.printStackTrace();
        } catch (IOException e)
            System.out.println("Error: " + e.getMessage());
            e.printStackTrace();
        } catch (ParserConfigurationException e)
            // TODO Auto-generated catch block
            e.printStackTrace();
    } I have called this method ,but it issues this error :"unknown protocol" followed by windows partition name, in the debug I found that the value of the url is "*file://(*windows-partiton-char)/rest of path" !!!
this should work but it doesn't!!
so how can I fix this problem?
thanks

Answer 1

someone sent me this code to fix,it works:
package schemaValidationPackage;
* XsdSchemaSaxValidator.java
* Copyright (c) 2007 by Dr. Herong Yang. All rights reserved.
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Schema;
import javax.xml.XMLConstants;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.transform.sax.SAXSource;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import javax.xml.validation.Validator;
import java.io.*;
import java.net.URL;
//also thanks for developer Hind Abd-El-Khalek
public class XsdSchemaSaxValidator {
     public static void validate(String xmlFilePath, URL schemaFileUrl)
        try
            SAXParserFactory factory = SAXParserFactory.newInstance();
            factory.setValidating(false);// stop standard validation to allow
                                            // custom schema
            factory.setNamespaceAware(true);
            SchemaFactory schemaFactory = SchemaFactory
                    .newInstance(javax.xml.XMLConstants.W3C_XML_SCHEMA_NS_URI);
            factory.setSchema(schemaFactory.newSchema(schemaFileUrl));
            SAXParser parser = factory.newSAXParser();
            XMLReader reader = parser.getXMLReader();
            // Register the error handler
            reader.setErrorHandler(new JS_ValidationError());
            // Parse the file as the first argument on the command-line
            reader.parse(xmlFilePath);
        catch (SAXException e)
            System.out.println("Error: " + e.getMessage());
            e.printStackTrace();
        } catch (IOException e)
            System.out.println("Error: " + e.getMessage());
            e.printStackTrace();
        } catch (ParserConfigurationException e)
            // TODO Auto-generated catch block
            e.printStackTrace();
  public static void validateXml(Schema schema, String xmlName) {
    try {
      // creating a Validator instance
      Validator validator = schema.newValidator();
      // preparing the XML file as a SAX source
      SAXSource source = new SAXSource(
        new InputSource(new java.io.FileInputStream(xmlName)));
      // validating the SAX source against the schema
      validator.validate(source);
      System.out.println();
      System.out.println("Validation passed.");
    } catch (Exception e) {
      // catching all validation exceptions
      System.out.println();
      System.out.println(e.toString());
  public static Schema loadSchema(String name) {
    Schema schema = null;
    try {
      String language = XMLConstants.W3C_XML_SCHEMA_NS_URI;
      SchemaFactory factory = SchemaFactory.newInstance(language);
      schema = factory.newSchema(new File(name));
    } catch (Exception e) {
      System.out.println(e.toString());
    return schema;
}