This section describes a tutorial example trying to use the Xerces2 SAXParser class included in JDK 1.7 to perform XSD 1.1 validation on an XML document. The program fails.
Now let's try to see if we make SAXValidatorJdk17.java program with XSD 1.1
by setting "http://www.w3.org/XML/XMLSchema/v1.1" as the schema language property:
/**
* SAXValidatorJdk17Xsd11.java
* Copyright (c) 2013 by Dr. Herong Yang, herongyang.com
*/
import java.io.File;
import java.io.IOException;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.DefaultHandler;
class SAXValidatorJdk17Xsd11 {
public static void main(String[] args) {
String schemaFeature
= "http://apache.org/xml/features/validation/schema";
try {
File x = new File(args[0]);
String schemaLocation = args[1];
SAXParserFactory f = SAXParserFactory.newInstance();
System.out.println(f.toString());
f.setValidating(true);
f.setFeature(schemaFeature,true);
SAXParser p = f.newSAXParser();
System.out.println(p.toString());
p.setProperty(
"http://apache.org/xml/properties/schema"
+"/external-noNamespaceSchemaLocation",schemaLocation);
p.setProperty(
"http://java.sun.com/xml/jaxp/properties/schemaLanguage",
"http://www.w3.org/XML/XMLSchema/v1.1");
DefaultHandler h = new MyErrorHandler();
p.parse(x,h);
} catch (ParserConfigurationException e) {
System.out.println(e.toString());
} catch (SAXException e) {
System.out.println(e.toString());
} catch (IOException e) {
System.out.println(e.toString());
}
}
private static class MyErrorHandler extends DefaultHandler {
public void warning(SAXParseException e) throws SAXException {
System.out.println("Warning: ");
printInfo(e);
}
public void error(SAXParseException e) throws SAXException {
System.out.println("Error: ");
printInfo(e);
}
public void fatalError(SAXParseException e) throws SAXException {
System.out.println("Fattal error: ");
printInfo(e);
}
private void printInfo(SAXParseException e) {
System.out.println(" Public ID: "+e.getPublicId());
System.out.println(" System ID: "+e.getSystemId());
System.out.println(" Line number: "+e.getLineNumber());
System.out.println(" Column number: "+e.getColumnNumber());
System.out.println(" Message: "+e.getMessage());
}
}
}
Running it with the "Xerces2 2.11.0 (XML Schema 1.1) (Beta)" version:
c:\Progra~1\Java\jdk1.7.0_07\bin\javac SAXValidatorJdk17Xsd11.java
c:\Progra~1\Java\jdk1.7.0_07\bin\java
-cp ".;c:\local\xerces-2_11_0-xml-schema-1.1-beta\xercesImpl.jar;
c:\local\xerces-2_11_0-xml-schema-1.1-beta
\org.eclipse.wst.xml.xpath2.processor_1.1.0.jar"
SAXValidatorJdk17Xsd11 dictionary_invalid_xsd.xml dictionary.xsd
org.apache.xerces.jaxp.SAXParserFactoryImpl@b1c260
org.apache.xerces.jaxp.SAXParserImpl@12c4c57
org.xml.sax.SAXNotSupportedException: The specified schema language
is not supported.
Too bad, the SAXParse object created with the default configuration
does not recognize the XSD 1.1 URI: http://www.w3.org/XML/XMLSchema/v1.1.
