Validating xml against schema in java

This post discusses about validating the generated XML against specific XML Schema Definition [XSD].An XML Schema Definition describes the structure of an XML document and governs the rules and constraints being applied on XML content.The validation is successful when the package com.xsd; import sax. There are numerous tools available for validating an XML document against an XSD.By default, Input Source is = new Input Source(new File Input Stream(my Xml Document)); Validator v = new Validator(is); XMLSchema(true); JAXP12Schema Source(new File(my Xml Schema File)); boolean is Valid = Valid(); designed for validations of snippets of XML against different schema languages.Any compliant implementation must support the W3C XML Schema language, but other languages like RELAX NG or Schematron may be supported as well.

The validate XMLSchema method takes XSD and XML String as argument and return “document is valid” if validation is successful or else returns “document is not valid”.

The piece of XML to validate is specified in the constructor.

The constructors using more than a single argument are only relevant if you want to validate against a DTD and need to provide the location of the DTD itself - for details see the next section.

This resolver is set through the xml.catalog.files system property that may be different for each developer or in the production environment: Now, when validation happens, instead of looking up the online schema URL location, it looks up the local schema.

XML catalogs can be used with JAXP, either SAX, DOM or STa X.

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