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Struts Tutorials:
Struts2 Tag CheckBoxList
, Checkbox, Iterator, IF
Struts2 Tag Library Example
Struts2 Tiles Example
Struts2 Tiles I18N Example
Struts2 Questions
Struts Tiles I18N Example
Struts Eclipse MVC
Struts2 Tags
Struts2 Example and Tutorial
Struts MVC
Struts2 Validation
Hibernate Tutorials:
Hibernate Case Study
Class Hierarchy Persist Example
Using Hibernate Interceptor
Hibernate Questions with Answer
Hibernate Many-to-Many Mapping Example
Hibernate one-to-many Mapping Example
Hibernate and ORM tools
Spring Hibernate Example
Hibernate SessionFactory Example
Hibernate Mapping Class Hierarchy
Hibernate Questions
Hibernate SessionFactory Questions
Spring Hibernate Example:
Spring Hibernate Case Study
Written By : Amit
Title :
Struts2 example tutorial
Description :
My First example using Apache Struts2
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Written By : ISHTEK
Title :
Struts2
Description :
Tags such as IF Iterator Tags
More...
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Written By : guddu
Title :
Struts Eclipse MVC
Description :
Step by step demonstration
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Written By : Girish
Title :
Struts Tiles I18N Example
Description :
Code with Sample Action
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|
Written By : ISHTEK
Title :
Struts2 questions
Description :
open for discussion
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|
Written By : ISHTEK
Title :
Struts2 Tiles Example
Description :
with Code and article
More...
|
| Struts2 Tag, Struts 2 Tag, Struts2 Checkbox, Tag, CheckboxList Tag Example
Author : Amit
Date (Year/Month/Date): 2009-04-11
Struts2 Tags Example | |
In this example, I have tried to provide a very simple end to end
solution by using Struts 2 Tags , such as IF TAG, ITERATOR TAG,
CHECKBOX TAG, CHECKBOSLIST TAG along with some of basic HTML related
Tags like FORM, textfield, submit etc.
Objective of this example is just to demonstrate ways to use Apache
Struts2 with Action class as plain POJO.
There are two screens, one is the main screen for user to enter certain
data, and the other screen displays this set of data in form of preview.
User data should flow to the Action class and to corresponding bean
and then this data will be shown in preview form to the user in another
screen.
As shown below:
As shown in this images, we have two screens, so two JSP pages, index.jsp
and preview.jsp files.
index.jsp
The main JSP file that holds some of textfield tag, form tag, checkbox tag
and chechboxlist tag etc.
<%@ taglib uri="/struts-tags" prefix="struts2"%>
<html>
<body>
<h4>Example Registration Page</h4>
<struts2:bean id="so" name="sample.SubscriptionOptions"/>
<struts2:form method="post" action="myexample" namespace="/sample">
<table>
<tr><td><struts2:textfield key="myBean.userName" label="Name "/></td></tr>
<tr><struts2:textfield key="myBean.roll" label="Roll "/></td></tr>
<tr><td><struts2:textfield key="myBean.section"
label="Section "/></td></tr>
<tr><struts2:textfield key="myBean.stdClass" label="Std/Class "/></td></tr>
<struts2:checkbox key="myBean.newsLetterOption"
label="Subscription for News Letters "/>
<struts2:checkboxlist label="Other Subscription Options "
key="myBean.subscriptionOptions" list="so"
labelSeparator=":"/>
<tr><td colspan="2"><struts2:submit value="Register"/></td></tr>
</table>
</struts2:form>
</body>
</html>
|
Looking at this JSP file, one can find out the action class name and namespce
action name is myexample and namespace is /sample.
Looking at the struts.xml file, one can find the Action class.
struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="goodexample" namespace="/sample" extends="struts-default">
<action name="myexample" class="sample.MyExample" method="preview">
<result name="preview">/preview.jsp</result>
</action>
</package>
</struts>
|
So the Action class "sample.MyExample" has a private instance variable
as myBean and a preview method as follows:
Myexample.java
package sample;
/**
* This code is provided "AS IS" without any guaranty
* Use of this code only for educational and learning
* purpose only.
* Author: Amit
* Contact : usingframeworks@gmail.com
* Date: 16-Feb-2009
*/
import java.util.Map;
/**
* This is the Action POJO class
*/
public class MyExample {
private MyBean myBean;
public String preview() throws Exception {
return "preview";
}
public void setMyBean(MyBean argMyBean) {
myBean = argMyBean;
}
public MyBean getMyBean() {
return myBean;
}
}
|
Now Mybean is the class that is holding all the variables those will
be accepting values from Struts2 Tags from index.jsp file.
MyBean.java
package sample;
import java.util.List;
import java.util.ArrayList;
public class MyBean
{
private String userName;
private String roll;
private String section;
private String stdClass;
private List subscriptionOptions;
private boolean newsLetterOption;
public String getUserName() {
return this.userName;
}
public void setUserName(String argUserName) {
userName = argUserName;
}
public String getRoll() {
return this.roll;
}
public void setRoll(String argRoll) {
roll = argRoll;
}
public String getSection() {
return this.section;
}
public void setSection(String argSection) {
section = argSection;
}
public String getStdClass() {
return this.stdClass;
}
public void setStdClass(String argStdClass) {
stdClass = argStdClass;
}
public List getSubscriptionOptions() {
return subscriptionOptions;
}
public void setSubscriptionOptions(List argSubscriptionOptions) {
subscriptionOptions = argSubscriptionOptions;
}
public void setNewsLetterOption(boolean argNewsLetterOption) {
newsLetterOption = argNewsLetterOption;
}
public boolean getNewsLetterOption() {
return newsLetterOption;
}
}
|
And another class file that holds all the hard coded subscription options
for this example, those are to be shown in checkbox list as labels.
SubscriptionOptions.java
package sample;
import java.util.ArrayList;
public class SubscriptionOptions extends ArrayList
{
public SubscriptionOptions() {
super();
add("Technical Support");
add("Business Support");
add("HR Support");
add("Help Desk Emails");
}
}
|
Once all the fields in MyBean are populated with values from index.jsp
screen, then these values are to be shown in preview page, so comes the
preview.jsp file
preview.jsp
<%@ taglib uri="/struts-tags" prefix="struts2"%>
<html>
<head></head>
<body>
<h2>Preview Page</h2>
<table>
<tr><td>
<b><font color="green">Name : </font>
</td><td><struts2:property value="myBean.userName"/></td></tr>
<tr><td><b><font color="green">Roll No. : </font></b></td><td>
<struts2:property value="myBean.roll"/></td></tr>
<tr><td><b><font color="green">Section : </font>
</b></td><td><struts2:property value="myBean.section"/></td></tr>
<tr><td><b><font color="green">Std/Class : </font>
</b></td><td><struts2:property value="myBean.stdClass"/></td></tr>
<tr><td>
<b><font color="green">New Letter Subscription :</font></b></td><td>
<struts2:if test="myBean.newsLetterOption">
Yes
</struts2:if>
<struts2:else>
No
</struts2:else>
</td></tr>
<tr><td valign="top"><b><font color="green">Other Subscription Options:</font></b></td><td>
<struts2:iterator id="a" value="myBean.subscriptionOptions">
<struts2:property value="a"/>
<br>
</struts2:iterator>
</td></tr>
</table>
</body>
</html>
|
If you are interested in setting up this example in tomcat web server,
following are some other files details such as
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>Struts Blank</display-name>
<filter>
<filter-name>sample-filter</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>sample-filter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
|
And as I am using Struts 2.1.6 version, then you may have to download
all dependent JAR files from
http://struts.apache.org/download.cgi
 | Author of this article/writeup has expressed his/her willingness |
to help or guide users with any technical difficulties he/she faces
while working with the example code environment setting up, running
and resolving any such exception raised during compile or at runtime.
You may ask for any technical doubt or seek technical help related to
this article by using following form to reach for technical help
from the Author for FREE.
This article's Author shall be reading your request and responding
within reasonable time (no resolution timeframe defined as such).
|
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Commented By ->
Gurish | Hi,
Nice Struts 2 Tag example and well structure code.
It helped me a lot by putting together peices of code
for Rapid example building and running this example in
my local environment.
One question though:
Suppose there are two more screens after preview screen,
with two buttons on preview screen as Edit and Post.
On click of Edit button, next screen displayed is an
editable screen with all the fields having previous details
and on click of Post button, all the preview screen details are
to be persisted into database??
What are the various ways one can design and implement this idea?
Please help.
|
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Commented By ->
Ashvin V. Ranpariya | Thanx allot of providing example.this is very usefull for me and every one who work with struts2 |
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Commented By ->
Abhijit | Thanks for Tutorial.. Its very useful.. |
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