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The application context provides a scope for sharing data across all requests and sessions within a web application. Data stored in this context remains available throughout the application's lifecycle, from startup to shutdown. The application context is created when the web application starts and is destroyed when the application shuts down. ...

In the previous blog post about SpringMVC workflow, we left some questions unanswered. Today, we'll dive deeper into HandlerMapping, a crucial component in the SpringMVC framework. What is HandlerMapping? The HandlerMapping interface provides the getHandler(HttpServletRequest request) method, which returns a HandlerExecutionChain. This chain co ...

404 Error Troubleshooting Common causes for 404 errors include incorrect context path configuration or mismatched servlet mappings. The correct URL format must follow http://host:port/context-root/servlet-path. Deployment issues may stem from malformed web.xml files, improper directory structures, or incorrect server deployment. Ensure the proj ...

Creating a Basic Servlet To begin learning Servlet development, we start with a simple Hello World example. Create a dynamic web project in you're IDE, then define a new Servlet class. package com.example.demo; import java.io.*; import javax.servlet.*; import javax.servlet.annotation.WebServlet; import javax.servlet.http.*; @WebServlet(" ...