Struts2 Subset Tag Example
Aim:
we are going to describe the subset tag. The subset tag is a generic tag that takes an iterator and outputs a subset of it.
Procedure:
Step 1:
Create project for struts2 SubsetTagPro
Step 2:
Create Action SubsetAction.java
Include following coding into SubsetAction.java
package example;
import com.opensymphony.xwork2.ActionSupport;
import java.util.*;
public class SubsetAction extends ActionSupport
{
private List myList;
public List getMyList()
{
return myList;
}
public void setMyList(List myList)
{
this.myList = myList;
}
public SubsetAction()
{
}
public String execute() throws Exception
{
myList=new ArrayList();
myList.add(new Integer(10));
myList.add(new Integer(20));
myList.add(new Integer(30));
myList.add(new Integer(100));
myList.add(new Integer(200));
myList.add(new Integer(300));
return "success";
}
}
Step 3:
Create jsp files
home.jsp
< %@taglib uri="/struts-tags" prefix="s" % >
< html >
< head >
< meta content="keyword" name="Struts Subset Tag Example" >
< title > Subset Tag Example < /title >
< /head >
< body >
< s:form action="subsetAction" method="post" >
< s:submit value="GO"/ >
< /s:form >
< /body >
< /html >
SubsetAction.jsp
< %@taglib uri="/struts-tags" prefix="s" % >
< html >
< head >
< meta content="keyword" name="Struts2 Subset Example" >
< title > Struts2 Subset Example < /title >
< /head >
< body >
< s:subset source="myList" >
< s:iterator >
< s:property/ >
< /s:iterator >
< /s:subset >
< /body >
< /html >
Step 4:
Made some changes in struts.xml
< !DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
http://struts.apache.org/dtds/struts-2.0.dtd >
< struts >
< package name="example" namespace="/example" extends="struts-default" >
< action name="subsetAction" class="example.SubsetAction" >
< result name="input" > /example/home.jsp < /result >
< result name="success" > /example/SubsetAction.jsp < /result >
< /action >
< /package >
< /struts >
Step 5:
Run home.jsp
Output
Directory Structure of this project
