Struts2 Control Tag Subset Tag Example

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