How to related xml file to schema

[ShubhaMishra]

Hi ,
I have creating an xml document from a string and I have to validate that against xml schema. Here is the code

String == <MessageRequest><Client>test</Client><Service>caller</Service</MessageRequest>

Schema :

<?xml version="1.0"?>
<xsd:schema xmlns:xsd="

http://www.w3.org/2001/XMLSchema"

targetNamespace="" xmlns="

http://www.w3schools.com"

elementFormDefault="qualified">
<xsd:element name="MessageRequest">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="Client" type="xsd:string"/>
<xsd:element name="Service" type="xsd:string" use="required"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>

And when I try to vailidate it using java code
Java Code:-

StringReader xmlDataReader = new StringReader(xmlData.toString());
SAXBuilder builder = new SAXBuilder("org.apache.xerces.parsers.SAXParser", true);
builder.setProperty("

http://apache.org/xml/properties/sc...ation","file:///D:/EAEP/MessageRequest.xsd");

// get root element after building document.
Document xmlDocument = builder.build(xmlDataReader);

I am receiving following error :-org.jdom.input.JDOMParseException: Error on line 1: Document is invalid: no grammar found.

Can anybody help me on this.

Thanks in Advance,
Shubhangi

 

[Diancecht]

Some ideas:

http://forum.java.sun.com/thread.jspa?forumID=34&messageID=928947&threadID=250998

http://www.oracle.com/technology/pub/articles/vohra_xmlschema.html

Cheers,
Dian

 

[ShubhaMishra]

Hi Dian,
Thanks for this link, but in my case if i was using
builder.setProperty("

http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation","MessageRequest.xsd");

it was giving the following error
org.jdom.input.JDOMParseException: Error on line 1: cvc-elt.1: Cannot find the declaration of element 'MessageRequest'.

I had change my code as following after that it start working Java Code

StringReader xmlDataReader = new StringReader(xmlData.toString());
SAXBuilder builder = new SAXBuilder();
builder.setValidation(true);
builder.setFeature("

http://apache.org/xml/features/validation/schema",true);

builder.setProperty("

http://apache.org/xml/properties/sc...ion","file:///D:/.../../MessageRequest.xsd");

Thanks
Hope this can help anybidy else in future