Validating xml using documentbuilderfactory

If your input XML is being read as a String (as opposed to byte array) then you can use replace your input string with the below code to make sure that all 'un-necessary' characters before the xml tag are wiped off.

If all else fails, open the file in binary to make sure there are no funny characters [3 non printable characters at the beginning of the file that identify the file as utf-8] at the beginning of the file. so we converted the file from utf-8 to ascii and it worked.

In case you want to make it explicit for reminding, it is fine, but it is not mandatory.

July 6, 2005 Rahul Srivastava After the first release of the W3C XML 1.0 recommendation in early 1998, XML started gaining huge popularity.

W3C_XML_SCHEMA_NS_URI); Document Builder Factory doc Builder Factory = Document Builder Instance(); Schema schema = schema Schema(schema File); Validator validator = Validator(); doc Builder Schema(schema); Document Builder doc Builder = doc Builder Document Builder(); Document doc = doc Builder.parse(xml File); validator.validate( Hey Guys i ran into a problem parsing xml files using the sax parser and a custom xsd.

W3C_XML_SCHEMA_NS_URI); Document Builder Factory doc Builder Factory = Document Builder Instance(); Schema schema = schema Schema(schema File); Validator validator = Validator(); doc Builder Schema(schema); Document Builder doc Builder = doc Builder Document Builder(); Document doc = doc Builder.parse(xml File); validator.validate( [0] The default value of cardinality facet is 1 for both min Occurs and max Occurs.

To report errors, it is necessary to provide an Error Handler to the underlying implementation.

The input document contains an extra attribute which has not been defined in the XML Schema, this shows that the XML Schema has been used for the validation.Many Java XML APIs provide mechanisms to validate XML documents, the JAXP API can be used for most of these XML APIs but subtle configuration differences exists.This article shows five ways of how to configure different Java APIs (including DOM, SAX, dom4j and XOM) using JAXP 1.3 for checking and validating XML with DTD and Schema(s).When using this XML Schema to validate the input XML document, the following error gets reported: ) as defined below has been used in the code examples to validate the input document. SAXParse Exception: Content is not allowed in prolog. Error Handler Wrapper.create SAXParse Exception(Unknown Source) at org.apache. allowed before the XML declaration can be treated as whitespace if the document is handed as a stream of characters to an XML parser rather than as a stream of bytes.