Spring xml problem

Question

I\'m trying to write a simple Spring AOP app, but I have problem with the xml configuration.

My xml:

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Answer 1

Change the declaration at the top of the XML to look like this:

You're just adding this "http://www.springframework.org/schema/aop/spring-aop-3.0.xsd". The xsi:schemaLocation attribute is just a bunch of pairs. The first of each pair is a schema URI, the second is the URL where the schema can be found. You can think of it as a map: key, then value.