Servlet life cycle

One: The life cycle of the servlet
1. Loading (the process of creating a Servlet object)
2. Initialize calls only once
Call the init () method
3. Performing a servlet task
Call the service () method to call N times
Note: Avoid the generation of 405 errors
4. Destruction
When the server shuts down
Call the Destroy () method
If the server memory overflows, the most recent servlet objects that are not frequently called are destroyed first

Two: the Servlet method Summary
Service (): Perform task
Doget (): Request for handling get mode
Dopost (): request to process the Post method
Init (): The initialization method that is called when the Servlet object is created
Destroy (): Called when the Servlet object is destroyed

Servlet life cycle