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The Overflow Blog. Stack Gives Back Here the tags also support validation and localization of coding that in turn offer more utilization. Its Controller and View components can come together with other technology to develop the model. The framework has its library and markup tags to present p resent the data dynamically. Its general-purpose defaults allow using struts directly Out of the box.
Configuration files are reloadable that allows changes without restarting a web container. Check boxes do not no t require any kind of special application for false values. Any class can be used as an action class and one can input properties by using any JavaBean directly to the action class. Strut 2 actions are Spring friendly and so easy to Spring integration.
AZAX theme enables to make the application more dynamic. Portal and servlet deployment are easy due to automatic portlet support without altering code. The request handling in every action makes it easy to customize, when required. Strut1 with all standard Java technologies and packages of Jakarta assists to create an extensible development environment. However, with the growing demand of web application, Strut 1 does not stand firm and needs to be changed with demand. This led to the creation of Strut2, which is more developer friendly with features like Ajax, rapid development and extensibility.
Strut is a well-organized framework based on MVC architecture. All these together makes Struts an essential framework for building Java application.
Later the name of WebWork2 has changed to Struts2. Hence, Apache Strut 2 is a dynamic, extensible framework for a complete application development from building, deploying and maintaining. WebWork is a framework for web-application development that has been included in Struts framework 2. It has some unique concepts and constructs like its compatibility of working within existing Web APIs in Java rather than trying to replace them completely. While, XWork provides a mechanism that is used for configuration and factory implementation management.
This mechanism is dependencies inject mechanism. Struts 2 Architecture Architecture Struts and webwork has joined together to develop the Struts 2 Framework. Request Lifecycle in Struts 2 applications 1. User Sends request: User sends a request to the server for some resource. Interceptors are applied: Interceptors configured for applying the common functionalities such as workflow, validation, file upload etc.
Execution of Action: Then the action method is executed to perform the database related operations like storing or retrieving the data from database. Output rendering: Then the Result render the output. Return of Request: Then the request returns through the interceptors in the reverse order.
Display the result to user: Finally the control is returned to the servlet container, which sends the output to the user browser. Image: Struts 2 high level overview of request processing: 6 Struts 2 Architecture Struts 2 is very elegant and flexible front controller con troller framework based on many standard technologies like Java Filters, Java Beans, ResourceBundles, XML etc.
Exception Handling: The Struts 2 Framework allows us to define exception handlers and inceptors. Interceptors: The Interceptors are used to specify the "request-processing lifecycle" for an action. Interceptors are configured to apply the common co mmon functionalities like workflow, validation, etc.. Struts 2 Architecture The following diagram depicts the architecture of Struts 2 Framework.
Following diagram shows the the initial request goes to the servlet container such as tomcat, which is then passed through standard filer chain. If the action is required to be invoked, the FilterDispatcher delegates the control to the ActionProxy. Struts 2. The book begins with a comprehensive look at Struts 2. You'll learn about configuring Struts 2. You'll get an introduction to most of the Struts 2.
From there you'll make your way into Struts 2. A look at Struts 2. After covering Struts 2. Chapter 2. If I had to summarize into one sentence why I wrote this book, it would have to be for one reason and one reason alone: I love technology and I love building things with it.
I have been coding since I was 12 years old. I have worked with dozens of technologies, and for the last four years I have had the opportunity to build enterprise-level software using several different open source projects.
I have been consistently blown away with the quality and functionality these technologies bring to the table. Struts 2 in action is better book than these two, but yes, that's not free.
To be honest I don't like concept of free books, first criterion is book must be good, readable, and updated. Anyone who is learning programming can pay 20 dollars, it's not a big deal. For online information and ordering of this and other Manning books, go to aguantevaldivia.
For more information, please contact: Special Sales Department. Here we are providing you E-Books, Notes and much more Free. Struts in action pdf free download The book of enoch pdf secrets, a server-side program that would perform some action and then generate. It seems that you're in Germany.
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