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| <h1 class="no_toc" id="from-a-birds-eye">From a birds eye</h1> |
| |
| <ul id="markdown-toc"> |
| <li><a href="#the-apache-struts-web-framework" id="markdown-toc-the-apache-struts-web-framework">The Apache Struts web framework</a></li> |
| <li><a href="#the-apache-struts-project" id="markdown-toc-the-apache-struts-project">The Apache Struts Project</a></li> |
| <li><a href="#why-should-you-use-apache-struts" id="markdown-toc-why-should-you-use-apache-struts">Why should you use Apache Struts?</a></li> |
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| |
| <h2 id="the-apache-struts-web-framework">The Apache Struts web framework</h2> |
| |
| <p>The Apache Struts web framework is a free open-source solution for |
| creating Java web applications.</p> |
| |
| <p>Web applications differ from conventional websites in that web applications |
| can create a dynamic response. Many websites deliver only static pages. |
| A web application can interact with databases and business logic engines |
| to customize a response.</p> |
| |
| <p>Web applications based on JavaServer Pages sometimes commingle database |
| code, page design code, and control flow code. In practice, we find that |
| unless these concerns are separated, larger applications become |
| difficult to maintain.</p> |
| |
| <p>One way to separate concerns in a software application is to use a |
| Model-View-Controller (MVC) architecture. The Model represents the business or |
| database code, the View represents the page design code, and the Controller |
| represents the navigational code. The Struts framework is designed to help |
| developers create web applications that utilize a MVC architecture.</p> |
| |
| <p>The framework provides three key components:</p> |
| |
| <p>A “request” handler provided by the application developer that is mapped to a standard URI. |
| A “response” handler that transfers control to another resource which completes the response. |
| A tag library that helps developers create interactive form-based applications with server pages. |
| The framework’s architecture and tags are buzzword compliant. Struts works |
| well with conventional REST applications and with technologies like SOAP and AJAX.</p> |
| |
| <h2 id="the-apache-struts-project">The Apache Struts Project</h2> |
| |
| <p>The Apache Struts Project is the open source community that creates and maintains |
| the Apache Struts framework. The project consists of a diverse group of volunteers |
| who share common values regarding collaborative, community-based open source development. |
| The Apache Struts Project is proud to share these values with our parent organization: |
| The Apache Software Foundation.</p> |
| |
| <p>The project is called “Struts” because the framework is meant to furnish the |
| “invisible underpinnings” that support professional application development. |
| Struts provides the glue that joins the various elements of the standard Java platform |
| into a coherent whole. Our goal is to leverage existing standards by producing the missing |
| pieces we need to create enterprise-grade applications that are easy to maintain over time.</p> |
| |
| <p>The Apache Struts Project offered two major versions of the Struts framework. Currently we are |
| only maintaining the Struts 2 version. It is recommended to upgrade all Struts 1.x application |
| to Struts 2. Please do not start new application development using Struts 1.x, as we are no longer |
| issuing security patches.</p> |
| |
| <p>Struts 2 was originally known as WebWork 2. After working independently for several years, |
| the WebWork and Struts communities joined forces to create Struts 2. The 2.x framework |
| is the best choice for teams who value elegant solutions to difficult problems.</p> |
| |
| <h2 id="why-should-you-use-apache-struts">Why should you use Apache Struts?</h2> |
| |
| <p>Apache Struts is a modern, maintained and full-featured web framework. It has been there |
| for years and give the huge user base it is unlikely it will go away anytime soon |
| in the future. Not only that we have dedicated users and developers on the project. |
| Apache Struts is licensed to the Apache License 2.0 and this will not change. We maintain |
| a clean IP and you are “safe” to use the project. Sometimes you are not “safe” to use |
| a project when a company controls the SCM (Source Control Management). |
| Access to Source Code doesn’t mean it is free. |
| With Apache Struts, you are not only free to “do what you want with it”, you can even |
| contribute (which is not always the case). And best of it: you can become a part of the |
| core team too.</p> |
| |
| <p>It is usually very easy to integrate other technologies with Apache Struts. If you are |
| using an ORM like Apache Cayenne, Hibernate or JDBC you will not have any restrictions. |
| Apache Struts is not even tied too much to a frontend technology. In old days it was |
| JSP, then came Velocity and Freemarker. Nowadays you might build your web application |
| with just static HTML and AngularJS. Or you want to use Sitemesh or Tiles. This all |
| is no problem due to Struts elegant and easy to use extension mechanisms.</p> |
| |
| <p>Unlike other, component oriented frameworks, we do not aim to hide the stateless nature |
| of the web. We think it is perfectly acceptable to build upon a Request/Response cycle. |
| We also think the MVC pattern is not so bad, just because it is old. In fact, we believe |
| the Apache Struts architecture is clean and easy to understand.</p> |
| |
| <p>Of course, if you wish to build components on the server side which render on the front end |
| side, you are most likely wrong with Struts. This is a different approach which promises |
| to reduce the amount of HTML/JavaScript knowledge needed and to create reusable components for |
| the view layer. Projects like <a href="http://wicket.apache.org">Wicket</a> and |
| <a href="http://tapestry.apache.org">Tapestry</a> serve this purpose very well. As with every |
| framework you need to decide if it makes sense for you to build components or if |
| you are better with the Struts-approach.</p> |
| |
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