Java Servlet Filter Example

Date: 2017-12-01

This tutorial explains Java Servlet Filters, which pre- and post-process web application requests. Servlets themselves handle HTTP requests, processing them and sending responses. The lifecycle of a servlet involves initialization (init()), service (service(), doGet(), doPost()), and destruction (destroy()). Filters, implemented using the Filter interface, are defined in web.xml and can perform tasks like logging, compression, and input validation. The tutorial provides a step-by-step guide to creating a login filter example using Eclipse, Maven, and Tomcat, demonstrating how to authenticate users and redirect them based on valid or invalid credentials.

Read more: https://examples.javacodegeeks.com/enterprise-java/servlet/java-servlet-filter-example/