Skip to main content

Posts

Showing posts with the label Struts 2

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 - Textfield Tag (Form Tags)

In this section, we are going to describe the textfield tag. The textfield tag is a UI tag that is used to render an HTML input field of type text. Add the following code snippet into the struts.xml file. struts.xml <action name="submitTag">   <result>/pages/uiTags/submitTag.jsp</result> </action> Create a jsp using the tag <s:textfield >  that renders an HTML input field of type text. <s:textfield label="Employee Name" name="empname" size="15" maxlength="10" /> tag displays an HTML text field with label equal to Employee Name with length of 15 columns. textfieldTag.jsp <%@ taglib prefix="s" uri="/struts-tags" %> <html>   <head>   <title>Textfield Tag Example</title>   </head>   <body>   <h1><span style="background-color: #FFFFcc">Tex...
Post a Comment
Read more

Struts2 - Submit Tag (Form Tags)

In this section, we are going to describe the submit tag . The submit tag is a UI tag that is used to render a submit button. The submit tag is used with the form tag to provide asynchronous form submissions. The submit can have three different types of rendering: • input: renders as html <input type="submit"...> • image: renders as html <input type="image"...> • button: renders as html <button type="submit"...> Add the following code snippet into the struts.xml file. struts.xml <action name="submitTag">   <result>/pages/uiTags/submitTag.jsp</result> </action> Create a jsp using the tag <s:submit> that renders a submit button. This tag contains various parameters: The value parameter presets the value of input element. In our 1st case we have set it to " Submit " The type parameter sets the type of submit to use. Valid values are input, button and image. In o...
Post a Comment
Read more

Struts2 - Select Tag (Form Tags)

In this section, we are going to describe the select tag. The select tag is a UI tag that is used to render an HTML input tag of type select. Add the following code snippet into the struts.xml file. struts.xml <action name="selectTag" class="net.struts2.weekDay">    <result>/pages/uiTags/selectTag.jsp</result> </action> Create an action class with a list populated with various items as shown below: weekDay.java package net.struts2; import com.opensymphony.xwork2.ActionSupport; import java.util.*; public class weekDay extends ActionSupport{      private List day;   public String execute()throws Exception{   day = new ArrayList();   day.add("Sunday");   day.add("Monday");   day.add("Tuesday");   day.add("Wednesday");   day.add("Thursday");   day.add("Friday")...
Post a Comment
Read more

Struts2 - Radio Tag (Form Tags)

In this section, we are going to describe the radio tag. The radio tag is a UI tag that renders a radio button input field. Add the following code snippet into the struts.xml file. struts.xml <action name="radioTag" class="net.struts2.checkboxlistTag">   <result>/pages/uiTags/radioTag.jsp</result> </action> Create an action class with two lists as shown below: checkboxlistTag.java package net.struts2; import com.opensymphony.xwork2.ActionSupport; import java.util.*; public class checkboxlistTag extends ActionSupport{      private List fruits;   private List animals;     public String execute()throws Exception{   fruits = new ArrayList();   fruits.add("Apple");   fruits.add("Mango");   fruits.add("Orange");   fruits.add("Pine Apple");  ...
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

Struts2 - Optiontransferselect Tag (Form Tags)

In this section, we are going to describe the Optiontransferselect tag. The Optiontransferselect tag is a UI tag that creates an option transfer select component. There are two <select ...> tags with buttons in the middle of them, which allows options in each of the <select ...> to be moved between them. It auto-selects all its elements upon its containing form submission. NOTE: The id and doubleId parameters are not needed to supply as they will get generated when the optiontransferselect tag is being used in a form tag. The generated id and doubleId will be <form_id>_<optiontransferselect_doubleName> and <form_id>_<optiontransferselect_doubleName> respectively. Add the following code snippet into the struts.xml file. struts.xml <action name="optiontransferselectTag">   <result>/pages/uiTags/optiontransferselectTag.jsp</result> </action> Create a jsp using the tag...
Read more

Struts2 - Password Tag (Form Tags)

In this section, we are going to describe the password tag. The password tag is a UI tag that renders an HTML input tag of type password. Add the following code snippet into the struts.xml file. struts.xml <action name="passwordTag"> <result>/pages/uiTags/passwordTag.jsp</result> </action> Create a jsp using the tag <s:password> . It renders an HTML input tag of type password. passwordTag.jsp <%@ taglib prefix="s" uri="/struts-tags" %> <html>   <head>   <title>Password Tag Example!</title>    </head>   <body>   <h1><span style="background-color: #FFFFcc">Password Tag Example! </span></h1>  <s:form>  <s:password label="Enter Password" name="password" size="10" maxlength="8" />   </s:form>   ...
Read more