Problem validating XML with XSD

Question

Hi everyone. I have an xsd schema and I want to validate some XML doc with the schema using SAX parser.
The user make the xml and then upload it to the server.
I want to enable client side validation but, for security reasons, I want also to validate this document when it's uploaded to the server.
The schema called ContentSchema.xsd
<?xml version="1.0" encoding="ISO-8859-1" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
     targetNamespace="www.mysite.com/Content" xmlns="www.mysite.com/Content">
     <xs:element name="content">
          <xs:complexType>
A document produced by the client starts in this way:
<?xml version="1.0" encoding="UTF-8"?>
<p:content xmlns:p="www.mysite.com/Content" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="www.mysite.com/Content ContentSchema.xsd">
in this way users can validate the XML doc before uploading. If the XSD is in the same folder of the uploaded XML the validation is ok.
The problem is that, on the server, I've stored the xsd file in a folder and I want the SAX parser to use this xsd to validate the XML. Even I pass the complete URI of the file to the parser, it won't work:
SAXParserFactory spf = SAXParserFactory.newInstance();
          spf.setValidating(true);
          spf.setNamespaceAware(true);
          spf.setFeature("http://apache.org/xml/features/validation/schema",true);
          spf.setFeature("http://apache.org/xml/features/validation/schema-full-checking", true);
          SAXParser sp=spf.newSAXParser();
          sp.setProperty("http://apache.org/xml/properties/schema/external-schemaLocation", schemaURL );
I set the schemURL with setProperty method but it's like the parser is looking for the XSD in the URL declared in the XML doc and not in the URI I specify. Anyone can help me?
Thank you very much

Answer 1

You will have to associate the schema with the namespace, like in your xsi:schemaLocation attribute.
Try something like this:
sp.setProperty("http://apache.org/xml/properties/schema/external-schemaLocation", "www.mysite.com/Content "+schemaURL);