java : valider un XML par un shema

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

<schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.example.org/SimpleSchema"

xmlns:tns="http://www.example.org/SimpleSchema" elementFormDefault="qualified">

<element name="Personne" type="tns:Identite"></element>

<complexType name="Identite">

<sequence>

<element name="nom" type="string"></element>

<element name="prenom" type="string"></element>

<element name="age" type="nonNegativeInteger"></element>

<element name="naissance" type="date"></element>

<element name="dureeSession" type="time"></element>

<element name="email" type="tns:emailType"></element>

</sequence>

</complexType>



<simpleType name="emailType">

<restriction base="string">

<minLength value="10"></minLength>

<maxLength value="20"></maxLength>

<pattern value="(\w)+(@)(\w.)+(fr|com)"></pattern>

</restriction>

</simpleType>

</schema>




et le code java qui va bien :

package com.enwoo;



import java.io.File;

import java.io.IOException;



import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.parsers.ParserConfigurationException;



import org.w3c.dom.Document;

import org.xml.sax.ErrorHandler;

import org.xml.sax.SAXException;

import org.xml.sax.SAXParseException;



public class ValidateurXML {



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";

static final String JAXP_SCHEMA_SOURCE = "http://java.sun.com/xml/jaxp/properties/schemaSource";

/**

* @param args

* @throws ParserConfigurationException

* @throws IOException

* @throws SAXException

*/

public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException

{

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

dbf.setIgnoringComments(true);

dbf.setNamespaceAware(true);

dbf.setValidating(true);

dbf.setAttribute(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA);

File schema = new File("ressources/SimpleSchema.xsd");

ValidateurXML validateurXML= new ValidateurXML();



if(!schema.exists())

{

System.err.println("Schema introuvable");

}

else

{

dbf.setAttribute(JAXP_SCHEMA_SOURCE,schema);

DocumentBuilder db = dbf.newDocumentBuilder();

db.setErrorHandler(validateurXML.new MyErrorHandler());

Document doc = db.parse(new File("ressources/Personnes.xml"));

}

}



private class MyErrorHandler implements ErrorHandler

{

public void error(SAXParseException exception) throws SAXException {

exception.printStackTrace();



}



public void fatalError(SAXParseException exception) throws SAXException {

exception.printStackTrace();



}



public void warning(SAXParseException exception) throws SAXException {

exception.printStackTrace();

}

}



un très bonne exemple ...