JSP life cycle

JSP life cycle

The key to understanding the underlying functionality of the JSP is to understand the life cycle that they follow.

The JSP lifecycle is the entire process from creation to destruction, similar to the servlet life cycle, except that the JSP life cycle also includes compiling the JSP file into a servlet.

Here are a few stages of the JSP life cycle:

• Compile phase:

  servlet container compiles servlet source file, generates Servlet class

• Initialization phase:

  Load the servlet class corresponding to the JSP, create an example, and invoke its initialization method

• Implementation phase:

  Invoking the service method of the servlet instance corresponding to the JSP

• Destruction phase:

  Invokes the Destroy method for the servlet instance corresponding to the JSP, and then destroys the servlet instance

JSP life cycle