Grails plugin - XmlValidator

Provides a simple mechanism to validate xml on the request with a given schema. Schema can be passed in as a relative file path or as a string. Throws SAXException for any validation errors. Syntax is easy to remember: change the familiar request.XML access into a method with the schema passed as an argument: request.XML(schemaInput)

Available on GitHub

A simple example Grails project demonstrating the use of the XmlValidator plugin is also available on GitHub.