What is Servlet

A servlet is a Java program that runs within a web server and processes client requests and generates dynamic responses. Servlets are the backbone of web application development in Java, and they provide a platform-independent way of building web applications. Servlets are server-side components that are responsible for handling HTTP requests and generating dynamic content. They are part of the Java EE (Enterprise Edition) specification and can be used with any Java web server that implements the Servlet API. Servlets receive requests from clients (such as web browsers) and generate responses that are sent back to the client. They can perform a wide range of tasks, such as processing HTML forms, accessing databases, and generating dynamic content based on user input. Servlets are often used in conjunction with other Java technologies, such as JavaServer Pages (JSPs) and JavaServer Faces (JSF), to create dynamic and interactive web applications. They are highly scalable and can handle multiple requests simultaneously, making them ideal for building large-scale web applications. Overall, servlets provide a powerful and flexible way to build web applications in Java, and they have become an essential component of modern web development frameworks such as Spring MVC and Struts.