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This article mainly explains "what is the dynamic agent in Spring AOP". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what is the dynamic agent in Spring AOP"?

JDK dynamic agent

The JDK dynamic proxy receives the proxied class through reflection and requires that the proxied class must implement an interface. The core of JDK dynamic agent is the InvocationHandler interface and Proxy class.

CGLIB dynamic agent

If the target class does not implement the interface, Spring AOP chooses to use CGLIB to dynamically proxy the target class. Of course, Spring also supports configuration to force the use of CGLIB dynamic proxies.

CGLIB (Code Generation Library), a code-generated class library, can dynamically generate subclasses of a class at run time. Note that CGLIB is a dynamic proxy done by inheritance, so if a class is marked as final, it cannot use CGLIB as a dynamic proxy.

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