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Struts2 interceptors are a core mechanism for implementing cross-cutting concerns in web applications, leveraging aspect-oriented programming principles. Similar in concept to servlet filters, interceptors execute logic before and after an action method is invoked. However, unlike filters that operate at the servlet container level, Struts2 int ...

Understanding how a web framework processes requests is fundamental to leveraging its capabilities effectively. Struts2, an MVC-based framework, orchestrates a sophisticated workflow to handle incoming HTTP requests, execute business logic, and render responses. This document explores the core components and the sequential steps involved in the ...

Overview Struts2 provides multiple mechanisms for validating input data such as email addresess, numeric ranges, and date formats. There are three primary validation approaches: using the validate() method, XML-based validation, and annotation-based validation. 1. Basic Setup Define a User class with standard fields and accessors: ``` package c ...