To validate the XML files I am generating against a schema, I used this very simplistic code:
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(false);
factory.setNamespaceAware(true);
SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = schemaFactory.newSchema(new File("my-schema.xsd"));
factory.setSchema(schema);
Document doc = factory.newDocumentBuilder().parse(new File("my-file.xml"));
If anything is invalid, exceptions are thrown.
Be sure to include the following line:
factory.setNamespaceAware(true);
otherwise you will get this cryptic error:
cvc-complex-type.3.2.2: Attribute 'xsi:noNamespaceSchemaLocation' is not allowed to appear in element ...
