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Servlet Tutorial

Learn Java Servlets
From Scratch

Java Servlets are the foundation of Java web development. Learn how to handle HTTP requests and responses, manage sessions, and build dynamic server-side web applications with Java EE.

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About Java Servlets

A Java Servlet is a Java class that handles HTTP requests and generates HTTP responses on the server side. Servlets run inside a servlet container (like Apache Tomcat) and are part of the Java EE specification. They form the backbone of Java web applications and are the foundation upon which frameworks like Spring MVC and JSP are built. Servlets handle request processing, session management, and response generation.

Prerequisites

Good knowledge of Core Java, HTML, and basic understanding of HTTP protocol is required.

Audience

Java developers who want to build server-side web applications using Java EE technologies.

What You'll Learn

Servlet lifecycle, HTTP methods, request/response handling, sessions, cookies, and filters.

Tools Needed

JDK 11+, Apache Tomcat server, Eclipse IDE or IntelliJ IDEA, and Maven for project management.

Tutorial Topics
Introduction 01 Getting Started 02 Servlet Lifecycle 03 HTTP Methods 04 Request & Response 05 Session Management 06 Filters 07 Listeners 08 Database Connectivity 09 Deployment 10 Exception Handling 11 Async Servlet 12 File Upload 13
Why Learn Java Servlets?
  • Java Web Foundation - Servlets are the core of Java web development; all frameworks build on them.
  • Enterprise Standard - Part of Java EE/Jakarta EE, used in large-scale enterprise applications.
  • MVC Architecture - Servlets act as controllers in the MVC design pattern with JSP views.
  • Session Management - Built-in support for HTTP sessions, cookies, and URL rewriting.
  • Spring Foundation - Understanding Servlets helps you master Spring MVC and Spring Boot.
  • Performance - Servlets are efficient and can handle thousands of concurrent requests.

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