An example of implementing AOP by dynamic agent simulation

AOP implementation code is quite simple The main core is dynamic proxy and reflection

I Interface class:

II Interface implementation class:

III Write dynamic proxy class dynamicproxy, * * * implement invocationhandler interface

IV Write test class:

V View console output:

=====Before method execution ======= Hello world ====== after method execution=======

Vi Summary:

The application scenarios of AOP can be summarized through the above code:

1. Transaction management, (transaction initiation and submission can be directly handled by AOP, and programmers can focus more on business)

2. Log management (log can be printed before and after method call)

3. Permission management (for example, login authentication, administrator permission, etc. when calling a method, you can also prompt if the permission is not enough)

The above example of dynamic agent simulation to realize AOP is all the content shared by Xiaobian. I hope it can give you a reference and support more programming tips.