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Struts2 - Iterator Tag (Control Tags)

In this section, we are going to describe the Iterator tag. Iterator tag is used to iterate over a value. An iterable value can be either of: java.util.Collection, java.util.Iterator.

Add the following code snippet into the struts.xml file.

struts.xml

<action name="iteratorTag" class="net.struts2.iteratorTag">

<result>/pages/genericTags/iteratorTag.jsp</result> 

</action>

Create an action class as shown:

iteratorTag.java

package net.struts2; 

import com.opensymphony.xwork2.ActionSupport; 

import java.util.*;


public class iteratorTag extends ActionSupport{

 private List myList;

 public String execute()throws Exception{

    myList = new ArrayList(); 

    myList.add("Fruits"); 

    myList.add("Apple"); 

    myList.add("Mango"); 

    myList.add("Orange"); 

    myList.add("Pine Apple");

    return SUCCESS;

   }

   public List getMyList(){

    return myList;

   }

}

The following example retrieves the value of the getMyList() method of the current object on the value stack and uses it to iterate over. The tag prints out the current value of the iterator.


iteratorTag.jsp

<%@ taglib prefix="s" uri="/struts-tags" %>

<html> 

 <head>

  <title>Iterator Tag Example!</title> 

 </head>

 <body> 

   <h1><span style="background-color: #FFFFcc">Iterator Tag Example!

      </span></h1> 

    <s:iterator value="myList">

      <s:property /><br> 

    </s:iterator>

 </body> 

</html>

Output of An Iterator Tag Example:

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