Error in parsing XML

[Siddharth Bhargava]

Hi Friends,
I am getting an error in validating an xml file using the schema. Following is the code snippet.

schemaValidation.xsd 
-------------------------

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema 
	xmlns="http://www.w3.org/2001/XMLSchema" 
	targetNamespace="http://www.example.org/schemaValidation" 
	xmlns:tns="http://www.example.org/schemaValidation" elementFormDefault="qualified"/>
	
<xsd:element name="fullname">
	<xsd:complexType>
		<xsd:sequence>
			<xsd:element name="firstname" type="xsd:string"/>
			<xsd:element name="middlename" type="xsd:string"/>
			<xsd:element name="lastname" type="xsd:string"/>
		</xsd:sequence>		
	</xsd:complexType>			
</xsd:element>


schema.xml 
--------------

<?xml version="1.0" encoding="UTF-8"?>

<fullname 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:noNamespaceSchemaLocation='schemaValidation.xsd'>
	
	<firstname>Sid</firstname>		
	<middlename>S</middlename>
	<lastname>Bhargava</lastname>

</fullname>


Document doc;
	
	static final String JAXP_SCHEMA_LANGUAGE = "http://java.sun.com/xml/jaxp/properties/schemaLanguage";
	static final String W3C_XML_SCHEMA = "http://www.w3.org/2001/XMLSchema"; 
	
	public static void main(String[] args) {
		XMLValidationUsingSchema schema = new XMLValidationUsingSchema();
		schema.validateXMLFile();		
	}

	private void validateXMLFile(){		
		//get the factory
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
		factory.setNamespaceAware(true);
		factory.setValidating(true);
		
		factory.setAttribute(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA);
		
		try{
			//Using factory get an instance of document builder
			DocumentBuilder builder = factory.newDocumentBuilder();
			builder.setErrorHandler(this);
			
			//parse using builder to get DOM representation of the XML file
			doc = builder.parse(new File("schema.xml"));			
		} catch(ParserConfigurationException pce){
			pce.printStackTrace();
		} catch (SAXException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	public void error(SAXParseException e){
		System.out.println("Error Parsing the file :: "+e.getMessage());
	}
	
	public void warning(SAXParseException e){
		System.out.println("Problem parsing the file :: "+e.getMessage());
	}
	
	public void fatalError(SAXParseException e){
		System.out.println("Error parsing the file :: "+e.getMessage());
		System.out.println("Cannot continue ...");
		System.exit(1);
	}

The exception which is coming is :

The prefix "xsd" for element "xsd:schema" is not bound.


Thanks and Regards,
Sid

[William Brogden]

xmlns="http://www.w3.org/2001/XMLSchema"

Isnt that supposed to be:

xmlns:xsd="http://www.w3.org/2001/XMLSchema"

Bill