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Schema validation with java

This guide demonstrates how to validate XML files against XSD schemas using Java, JDOM, and Xerces. It includes step-by-step instructions for setting up your environment in Eclipse with Java 1.5, and utilizes JDOM for parsing XML files. The example codes outline how to configure the SAXBuilder for schema validation and handle exceptions during the process. Improvements to the handling of schema imports and extensions are discussed, along with a sample XML file that adheres to the specified schema.

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Schema validation with java

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  1. Schema validationwith java xml xsd 8.10.08

  2. Agenda • Umgebung • Programm • Output 08.10.08

  3. Umgebung • Eclipse 3.3.1.1 • Java 1.5 • Erweiterung http://jdom.org/dist/binary • java archives: jdom.jar und xerces.jar 08.10.08

  4. publicclass Xmlschema { publicstaticvoid main( String[] args ) {try { File xsdFile = new File(“c:\countries.xsd"); File xmlFile = new File(“c:\countries.xml"); SAXBuilder builder = new SAXBuilder("org.apache.xerces.parsers.SAXParser", true); builder.setFeature("http://apache.org/xml/features/validation/schema", true); builder.setProperty(http://apache.org/xml/properties/schema + "/external-noNamespaceSchemaLocation", xsdFile.toURL().toString() ); org.jdom.Document doc = builder.build( xmlFile ); System.out.println( "Successfully parsed and validated" ); catch ( Exception cause ) {System.err.println( cause.toString() );}}} Program 08.10.08

  5. “Output” 08.10.08

  6. “Output” 08.10.08

  7. File: defineexample1.xml xsi:schemaLocation="http://www.cdisc.org/ns/odm/v1.2 define1-0-0.xsd" schema location 08.10.08

  8. schemata define1-0-0.xsd <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/03/xml.xsd"/> <xs:import namespace="http://www.w3.org/2000/09/xmldsig#" schemaLocation="http://www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd"/> <xs:include schemaLocation="http://www.cdisc.org/schema/def/v1.0/define-extension.xsd"/> define-extension.xsd <xs:import namespace="http://www.cdisc.org/ns/def/v1.0" schemaLocation="http://www.cdisc.org/schema/def/v1.0/define-ns.xsd"/> <xs:redefine schemaLocation="http://www.cdisc.org/schema/odm/v1.2.1/ODM1-2-1.xsd"> 08.10.08

  9. Fragen • Gibt es andere Lösungen (sas) ? 08.10.08

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