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As I’ve hinted at before, security is an aspect-oriented concept. And Spring AOP is the basis for method-level security in Spring Security. But for the most part you’ll never need to deal with Spring Security’s aspects directly. All of the AOP involved in securing methods is packed into a single element: <global-method-security>. Here’s a common way of using <global-method-security>.
<global-method-security secured-annotations="enabled" />