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Apache Struts 2 Architecture in a Nutshell

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  1. The web browser requests the page
  2. The Filter Dispatcher looks at the request and determines the appropriate Action<
  3. The Interceptors automatically apply common functionality to the request like workflow, validation, and file upload handling
  4. The Action method executes, usually storing and/or retrieving information from a database
  5. The Result renders the output, be it HTML, images, or PDF, to the browser

Struts Tags in a nutshell

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A web application uses a deployment descriptor to initialize resources like filters and listeners. The web deployment descriptor is formatted as a XML document and named web.xml. Likewise, the framework uses a configuration file, named struts.xml, to initialize its own resources. These resources include action mappings, to direct input to server-side Action classes, and result types, to select output pages.

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(lightbulb) The framework provides general-purpose defaults, so you can start using Struts right away, "out of the box". As needed, you can override any of our defaults in your application's configuration.

Struts

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MVC in a Nutshell

Apache Struts 2 helps you create an extensible development environment for your application, based on industry standards and proven design patterns. Struts is a Model View Controller framework. Struts provides Controller and View components, and integrates with other technologies to provide the Model. The framework's Controller acts as a bridge between the application's Model and the web View.

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Is Struts the best choice for every project?

NoApache Struts 2 helps you create an extensible development environment for enterprise-grade applications, based on industry standards and proven design patterns. If you need to write a very simple application, with a handful of pages, then you might consider a "Model 1" solution that uses only server pages.

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