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In Spring MVC, the Controller's methods are the final destination point that a web request can reach. After being invoked, the Controller's method starts to process the web request by interacting with the Service layer to complete whatever work needs to be done

From

Cover of Spring MVC Beginner's Guide - Second Edition

Note

Sau khi được gọi, controller's method tương tác với Service layer để tiếp nối công việc.