Error: “schemaLocation value *** must have even number of URI's.” on namespaces in spring dispatcher

Question

I was getting following error

 org.xml.sax.SAXParseException; lineNumber: 9; columnNumber: 55;
SchemaLocation: schemaLoca         


        

Answer 1

The schemaLocation attribute references an XML Schema document for a namespace.

Basically when you type:

xmlns:expns="http://www.example.com"
xsi:schemaLocation="http://www.example.com
                    http://www.example.com/schema/example.xsd"

You are saying: "I'm going to use the prefix expns for the elements of the namespace http://www.example.com. Also, so you can validate those elements, get the XSD Schema file for http://www.example.com in http://www.example.com/schema/example.xsd"

So, in other words, the format is:

xsi:schemaLocation="namespace-a   where_to_get_the_xsd_for_namespace-a
                    namespace-b   where_to_get_the_xsd_for_namespace-b
                    namespace-c   where_to_get_the_xsd_for_namespace-c"

And so on.

That's why it must me an even number.

More info and examples can be found here.