Servlet Life Cycle

There have three phases which are initialization, service and destruction.

Phases	Explanation
Initialization	(happen only one) When a container loads, a servlet it invokes the init() before servicing any request
Service Client Request	Server invokes service() method to do request and response
Destruction	(happen only one) When servlet going to remove the memory, it invoke the method destroy()

Advantages of servlet

•          Multithreaded

–        Request received by servlet container is loaded into memory and assign thread

–        New thread of the same servlet is created if more request for the same servlet is received

–        make the overall processing faster

•          Stable environment and easy to deploy since servlet is executed inside a container

•          Inherit all good features of the java programming language