Java Servlet API & Overview Comprehensive Notes
This document provides a detailed overview of Java Servlets, specifically focusing on Unit-III: Servlet API and Overview. These notes are ideal for computer science students and developers looking to understand server-side web development.
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Description
Key Topics Covered:
Introduction to Servlets: Definition as server-side technology for generating dynamic web pages and its role as a middle-man between web servers and clients.
Key Features: Platform independence, robustness, security, and the ability to handle multiple requests using threads.
Servlet Architecture: Detailed breakdown of the interaction between the client, web server (Tomcat, GlassFish), and servlet container.
Request & Response Handling: Explanation of HttpServletRequest and HttpServletResponse objects, including methods like doGet(), doPost(), doPut(), and doDelete().
Servlet Life Cycle (SLC): In-depth analysis of the 5 phases (Loading, Creation, Initialization, Action, and Destruction) and the 3 core methods: init(), service(), and destroy().
Practical Examples: Code snippets and syntax for life cycle methods and request handling.
Pros and Cons: Analysis of the advantages (fast, portable) and disadvantages (complex for large apps) of using Servlets.
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