A brief discussion on the life cycle of Servlet

In this article, the editor will talk to you about the life cycle of Servlet, which has certain reference value. Friends who are just interested can learn about it. one time.

##The life cycle of Servlet is divided into four parts, which are as follows:

1.Instantiation

2.Initialization

3.Service

4. Destroy

When accessing the Servlet for the first time, the server will create a Servlet instance, then the init() method in the Servlet will be executed, and any user request will Create a new thread to access the service() method in the Servlet. In the service() method, different doXXX methods will be called according to different request methods (Get requests access the doGet() method, and Post requests access the doPost() method). When the server is removed or shut down, the destroy() method will be called to destroy the Servlet instance.

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