- A servlet is a server-side program which executes inside a Web server, such as Apache.
- It Receives HTTP requests from the client and provides HTTP responses
javax.servlet.httppackages provide interfaces and classes for writing servlets.
- All servlets must implement the
Servletinterface, which defines life-cycle methods.
- When implementing a generic service, you can use or extend the
GenericServletclass provided with the Java Servlet API. The
HttpServletclass provides methods, such as
doPost, for handling HTTP-specific services.