What is servlet specification

The servlet specification is a standard that the WEB framework needs to follow when running in a Servlet container. If the WEB framework wants to run in a container that conforms to the Servlet specification, then it must also conform to the Servlet specification.

The Web framework generally provides a unified request entry through a Servlet, maps the specified resources to this servlet, and performs the initial configuration of the framework in this servlet. Access the data in the Web page, perform logical processing, and integrate the resulting data with the presentation layer and display it to the user. WEB frameworks want to run in containers that comply with the Servlet specification, and they also need to comply with the Servlet specification.

Injecting a WEB framework into a servlet mainly involves the following parts of the Servlet specification:

● Deployment descriptor

● Mapping request To Servlet

● Servlet life cycle

● Request distribution

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