Validate xml against XML Schema : Schema « XML « Java

Home
Java
1.2D Graphics GUI
2.3D
3.Advanced Graphics
4.Ant
5.Apache Common
6.Chart
7.Class
8.Collections Data Structure
9.Data Type
10.Database SQL JDBC
11.Design Pattern
12.Development Class
13.EJB3
14.Email
15.Event
16.File Input Output
17.Game
18.Generics
19.GWT
20.Hibernate
21.I18N
22.J2EE
23.J2ME
24.JavaFX
25.JDK 6
26.JDK 7
27.JNDI LDAP
28.JPA
29.JSP
30.JSTL
31.Language Basics
32.Network Protocol
33.PDF RTF
34.Reflection
35.Regular Expressions
36.Scripting
37.Security
38.Servlets
39.Spring
40.Swing Components
41.Swing JFC
42.SWT JFace Eclipse
43.Threads
44.Tiny Application
45.Velocity
46.Web Services SOA
47.XML
Java » XML » Schema 




Validate xml against XML Schema
    

/*
Parser object is: com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl@c9ba38
Start document: 
Start element: local name: PHONEBOOK qname: PHONEBOOK uri: 
Characters:   
Start element: local name: PERSON qname: PERSON uri: 
Characters:    
Start element: local name: NAME qname: NAME uri: 
Attributes:
  Name : firstName
  Type : CDATA
  Value: Joe
  Name : lastName
  Type : CDATA
  Value: Yin
Characters: Joe
Characters:  Yin
End element: local name: NAME qname: NAME uri: 
Characters:    
Start element: local name: EMAIL qname: EMAIL uri: 
Characters: joe@yourserver.com
End element: local name: EMAIL qname: EMAIL uri: 
Characters:    
Start element: local name: TELEPHONE qname: TELEPHONE uri: 
Characters: 202-999-9999
End element: local name: TELEPHONE qname: TELEPHONE uri: 
Characters:    
Start element: local name: WEB qname: WEB uri: 
Characters: www.java2s.com
End element: local name: WEB qname: WEB uri: 
Characters:   
End element: local name: PERSON qname: PERSON uri: 
Characters:   
End element: local name: PHONEBOOK qname: PHONEBOOK uri: 
End document: 
 */
import java.io.StringReader;

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 javax.xml.validation.SchemaFactory;

import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.DefaultHandler;

public class MainClass {
  public static void main(String args[])throws Exception {
    SAXParserFactory spf = SAXParserFactory.newInstance();
    SAXParser parser = null;
    spf.setNamespaceAware(true);
    try {
     SchemaFactory sf =
                     SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI)
     spf.setSchema(sf.newSchema(new SAXSource(new InputSource(new StringReader(schemaString)))));

     parser = spf.newSAXParser();
    }
    catch(SAXException e) {
      e.printStackTrace(System.err);
      System.exit(1);    
    
    catch(ParserConfigurationException e) {
      e.printStackTrace(System.err);
      System.exit(1);    
    }
    MySAXHandler handler = new MySAXHandler()
    System.out.println(schemaString);
    parser.parse(new InputSource(new StringReader(xmlString)), handler);
  }
  static String xmlString = "<?xml version=\"1.0\"?>" +
      "<note>" +
      "<to>rtoName</to>" +
      "<from>FromName</from>" +
      "<heading>Info</heading>" +
      "<body>Message Body</body>" +
      "</note>";
  
  static String schemaString ="<?xml version=\"1.0\"?>" +
      "<xs:schema xmlns:xs=\"http://www.w3.org/2001/XMLSchema\"" +
      " targetNamespace=\"http://www.java2s.com\"" +
      " xmlns=\"http://www.java2s.com\"" +
      " elementFormDefault=\"qualified\">" +
      "<xs:element name=\"note\">" +
      "<xs:complexType>" +
      "<xs:sequence>" +
      "<xs:element name=\"to\" type=\"xs:string\"/>" +
      "<xs:element name=\"from\" type=\"xs:string\"/>" +
      "<xs:element name=\"heading\" type=\"xs:string\"/>" +
      "<xs:element name=\"body\" type=\"xs:string\"/>" +
      "</xs:sequence>" +
                      "</xs:complexType>" +
                      "</xs:element>" +
                      "</xs:schema>";
}

class MySAXHandler extends DefaultHandler {
  public void startDocument() {
    System.out.println("Start document: ");
  }    
    public void endDocument()  {
    System.out.println("End document: ");
  }
  
  public void startElement(String uri, String localName, String qname, 
                                                               Attributes attr)
  {
    System.out.println("Start element: local name: " + localName + " qname: " 
                                                        + qname + " uri: "+uri);
    int attrCount = attr.getLength();
    if(attrCount>0) {
      System.out.println("Attributes:")
      for(int i = ; i<attrCount ; i++) {
        System.out.println("  Name : " + attr.getQName(i))
        System.out.println("  Type : " + attr.getType(i))
        System.out.println("  Value: " + attr.getValue(i))
      }
    
  }
  
  public void endElement(String uri, String localName, String qname) {
    System.out.println("End element: local name: " + localName + " qname: "
                                                         + qname + " uri: "+uri);
  }
  
  public void characters(char[] ch, int start, int length) {
    System.out.println("Characters: " new String(ch, start, length));
  }

  public void ignorableWhitespace(char[] ch, int start, int length) {
    System.out.println("Ignorable whitespace: " new String(ch, start, length));
  }

  public void startPrefixMapping(String prefix, String uri) {
    System.out.println("Start \"" + prefix + "\" namespace scope. URI: " + uri)
  }

  public void endPrefixMapping(String prefix) {
    System.out.println("End \"" + prefix + "\" namespace scope.")
  }

  public void warning(SAXParseException spe) {
    System.out.println("Warning at line "+spe.getLineNumber());
    System.out.println(spe.getMessage());
  }

  public void fatalError(SAXParseException spethrows SAXException {
    System.out.println("Fatal error at line "+spe.getLineNumber());
    System.out.println(spe.getMessage());
    throw spe;
  }
}


           
         
    
    
    
  














Related examples in the same category
1.Validate xml against the schema
2.Create XML validator from XML schema
3.Encoder and Decoder for XML element and attribute names
4.XML constants
5.Resolve relative URIs and SystemID strings into absolute URIs
6.Provides a trace of the schema type information for elements and attributes in an XML document.
7.Use JAXP Validation API to create a validator and validate input from a DOM which contains inline schemas and multiple validation roots.
8.Return the first element child with the specified qualified name.
9.XSDWriter is a helper class to produce xml schemas in Java.
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.