Discussion :

[jbelis]

Salut,

Je cherche a ecrire un simple outil de validation XML, par rapport a un schema xsd. Java6.

Je galere pour faire marcher le code d'exemple avec mon schema. Si qqun pouvait jeter un coup d'oeil et me dire ou j'ai erre ca serait super.

Merci d'avance!

mon code:

Code :

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import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Source;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Validator;
 
import org.w3c.dom.Document;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
 
public class ValidateXML {
 
	public static void main(String[] arg) {
 
		if (arg.length != 2) {
			System.err.println("Usage: ValidateXML <filename> <schema-url>");
			System.exit(2);
		}
 
		File file = new File(arg[0]);
 
		if (!file.exists()) {
			System.err.println("File not found: " + arg[0]);
			System.exit(2);
		}
 
		URL schemaUrl = null;
		try {
			String url = arg[1];
			if (url.startsWith("/")) url = "file://" + url;
			schemaUrl = new URL(url);
		}
		catch (MalformedURLException e) {
			System.err.println("malformed url: " + arg[1]);
			System.exit(2);
		}
		catch (IOException e) {
			System.err.println("schema cannot be downloaded: " + e.getMessage());
			System.exit(2);
		}
 
		try {
 
			// parse an XML document into a DOM tree
			DocumentBuilder parser = DocumentBuilderFactory.newInstance().newDocumentBuilder();
			parser.setErrorHandler(errorHandler);
			Document document = parser.parse(file);
 
			// create a SchemaFactory capable of understanding WXS schemas
			SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
			factory.setErrorHandler(errorHandler);
 
			// load a WXS schema, represented by a Schema instance
			Source schemaFile = new StreamSource(schemaUrl.openStream());
			Schema schema = factory.newSchema(schemaFile);
 
			// create a Validator instance, which can be used to validate an instance document
			Validator validator = schema.newValidator();
			validator.validate(new DOMSource(document));
 
		}
		catch (Exception e) {
			e.printStackTrace();
			System.out.println("Document validation failed: " + e.getMessage());
			System.exit(1);
		}
 
		System.exit(0);
	}
 
	private static ErrorHandler errorHandler = new org.xml.sax.ErrorHandler() {
		@Override
		public void warning(SAXParseException e) throws SAXException {
			System.err.println("Warning: " + e.getMessage());
		}
 
		@Override
		public void error(SAXParseException e) throws SAXException {
			System.err.println("Error: " + e.getMessage());
		}
 
		@Override
		public void fatalError(SAXParseException e) throws SAXException {
			System.err.println("Fatal error: " + e.getMessage());
		}
	};
 
}

mon document a valider

Code :

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<?xml version="1.0" encoding="UTF-8"?>
<listings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
		  xsi:noNamespaceSchemaLocation="http://local.google.com/local_feed.xsd">
	<language>en</language>
	<datum>WGS84</datum>
 
		<listing>
			<id>109855865</id>
			<name>Lance</name>
			<address>110 Oxmoor Rd, Birmingham, Alabama </address>
			<country>US</country>
			<phone type="main"></phone>
			<phone type="fax"></phone>
			<content>
				<attributes>
					<link>http://localhost:8080/merchant/us/alabama/birmingham/Lance</link>
					<attr name="Average Purchase Amount Per Transaction">$73.21</attr>
				</attributes>
			</content>
		</listing>
</listings>

mon XSD : http://local.google.com/local_feed.xsd

Le resultat:

Code :

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org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'listings'.
	at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
	at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
	at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
	at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
	at org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(Unknown Source)
	at org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(Unknown Source)
	at org.apache.xerces.jaxp.validation.DOMValidatorHelper.beginNode(Unknown Source)
	at org.apache.xerces.jaxp.validation.DOMValidatorHelper.validate(Unknown Source)
	at org.apache.xerces.jaxp.validation.DOMValidatorHelper.validate(Unknown Source)
	at org.apache.xerces.jaxp.validation.ValidatorImpl.validate(Unknown Source)
	at javax.xml.validation.Validator.validate(Validator.java:127)
	at mint.trends.tools.ValidateXML.main(ValidateXML.java:75)