Simplest example:
I have a dispatcher servlet configured to catch everything:
dispatcher
I also met this problem before. My situation was I didn't put all the 62 spring framework jars into the lib file (spring-framework-4.1.2.RELEASE edition), it did work. And then I also changed the 3.0.xsd into 2.5 or 3.1 for test, it all worked out. Of course, there are also other factors to affect your result.