Skip to main content

Posts

Showing posts with the label About Struts

Struts 2 Features

The important features of struts 2 framework are as follows: Configurable MVC components POJO based actions AJAX support Integration support Various Result Types Various Tag support Theme and Template support 1) Configurable MVC components In struts 2 framework, provide all the components (view components and action) information in struts.xml file. If we need to change any information, we can simply change it in the xml file. 2) POJO based actions In struts 2, action class is POJO (Plain Old Java Object) i.e. a simple java class. Here, you are not forced to implement any interface or inherit any class. 3) AJAX support Struts 2 provides support to ajax technology. It is used to make asynchronous request i.e. it doesn't block the user. It sends only required field data to the server side not all. So it makes the performance fast. 4) Integration Support We can simply integrate the struts 2 application with hibernate, spring, tiles etc. framew...
Post a Comment
Read more

About Struts 2 FrameWork

A framework tries to automate the common tasks and provides a platform for the users to build applications quickly. Struts 2 is based on the OpenSymphony Web Works Framework . Struts 2 framework implements the Model-View-Controller ( MVC ) design pattern. In Struts 2 the model, view and controller are implemented by the action , result and FilterDispatcher respectively. The controller's job is to map the user request to appropriate action. In Struts 2 FilterDispatcher does the job of Controller. Model contains the data and the business logic. In Struts 2 the model is implemented by the Action component. View is the presentation component of the MVC Pattern. In Struts 2 the view is commonly implemented using JSP, Velocity Template, Freemaker or some other presentation-layer technology. The controller receives the user request and determine which Struts 2 action to invoke. The framework creates an instance of this action and associate it with the newly ...
Read more

Struts2 - Optgroup Tag (Form Tags)

In this section, we are going to describe the optgroup tag. The optgroup tag is a UI tag that creates an optgroup component which needs to reside within a select tag <s:select>. Add the following code snippet into the struts.xml file. struts.xml <action name="optgroupTag">    <result>/pages/uiTags/optgroupTag.jsp</result> </action> Create a jsp using the tag <s:optgroup> within the <s:select> tag. It creates an optgroup component. This tag contains few parameters: The label parameter sets the label attribute In our case we have set it to " Hardware " and " Software ". optgroupTag.jsp <%@ taglib prefix="s" uri="/struts-tags" %> <html>   <head>   <title>Optgroup Tag Example!</title>    </head>   <body>  <h1><span style="background-color: #FFFFcc">Optgroup Tag Ex...
Read more