XSD Tutorials - Herong's Tutorial Examples - Version 5.11, by Dr. Herong Yang
Validating XML Documents against Schema Documents
This section describes a tutorial example of how to use JAXP (Java API for XML Processing) to validate an XML document against a schema.
From the JAXP chapter of this book, we wrote a Java validator, XsdSchemaValidator.java, to validate XML documents again schema documents. Now we can use it to validate the following XML document, holiday_error.xml, again the holiday.xsd schema described in the previous section.
<?xml version="1.0"?> <holiday country="Canada">National Day <date>July 1</date> </holiday>
Obviously, we are going to get several validation errors. Here is the entire output from XsdSchemaValidator.java:
>java XsdSchemaValidator holiday.xsd holiday_error.xml Error: Line number: 2 Column number: 27 Message: cvc-type.3.1.1: Element 'holiday' is a simple type, so it cannot have attributes, excepting those whose namespace name is identical to 'http://www.w3.org/2001/XMLSchema-instance' and whose [local name] is one of 'type', 'nil', 'schemaLocation' or 'noNamespaceSchemaLocation'. However, the attribute, 'country' was found. Error: Line number: 4 Column number: 11 Message: cvc-type.3.1.2: Element 'holiday' is a simple type, so it must have no element information item [children]. Error: Line number: 4 Column number: 11 Message: cvc-datatype-valid.1.2.1: '' is not a valid value for 'date'. Error: Line number: 4 Column number: 11 Message: cvc-type.3.1.3: The value '' of element 'holiday' is not valid. Failed with errors: 4
I assume that you know why we are getting those errors.
Last update: 2013.
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