Struts2 Control Tag Generator Tag with id

Struts2 Generator Tag with id attribute Example

Aim:

Struts 2 generator tag is used to generate an iterator based on the “val” attribute provided in the page. The generator tag generates an iterator with "count" attribute and tag prints it out using the   tag. The separator attribute separates the val into entries of the iterator.

In this section, we are going to describe the generator tag using the id attributes. 

Procedure:

            Step 1:

            Create project GeneratorPro

            Step 2:

            Create Action GeneratorAction.java

            Include following coding into GeneratorAction.java

package example;

import com.opensymphony.xwork2.ActionSupport;

public class GeneratorAction  extends ActionSupport

{

    public GeneratorAction()

    {

    }

    public String execute() throws Exception

    {

        return "success";

    }

}

Step 3:

            Create jsp files

            home.jsp

< %@taglib uri="/struts-tags" prefix="s" % >
< html >
< head >
< meta content="keyword" name="Struts2 Generator Tag Example" >
< title > Generator Tag Example < /title >
< /head >
< body >
< s:form action="generateAction" method="post" >
< s:submit value="OK"/ >
< /s:form >
< /body >
< /html >

GeneratorTag.jsp

< %@taglib uri="/struts-tags" prefix="s" % >
< html >
< head >
< meta content="keyword" name="Struts2 Generator Tag Example" >
< title > Generator Tag Example < /title >
< /head >
< body >
< s:generator val="%{'www.suresh.com,www.suresh.net,www.suresh.org'}" separator="," count=”3” id=”mylist” / >
< %
Iterator i=(Iterator)pageContext.getAttribute("mylist");
while(i.hasNext())
{
out.println(i.next());
}
% >
< /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="generateAction" class="example.GeneratorAction" >
< result name="input" > /example/home.jsp < /result >
< result name="success" > /example/GeneratorTag.jsp < /result >
< /action >
< /package >
< /struts >


Step 5:

Run the home.jsp

Only three values displayed because we specify count is 3.

Directory structure of this project