Radio Tag (Form Tag) Example

In this section, we are going to describe the radio tag. The radio tag is a UI tag that renders a radio button input field.

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

<action name="radioTag" class="net.roseindia.checkboxlistTag">
<result>/pages/uiTags/radioTag.jsp</result>
</action>

Create an action class with two lists as shown below:
checkboxlistTag.java


package net.roseindia;

import com.opensymphony.xwork2.ActionSupport;

import java.util.*;



public class checkboxlistTag extends ActionSupport{

  

  private List fruits;

  private List animals;  

  public String execute()throws Exception{

    fruits = new ArrayList();

    fruits.add("Apple");

    fruits.add("Mango");

    fruits.add("Orange");

    fruits.add("Pine Apple");



    animals = new ArrayList();

    animals.add("Dog");

    animals.add("Elephant");

    animals.add("Ox");

    animals.add("Fox");

    return SUCCESS;



  }



  public List getFruits(){

    return fruits;

  }



  public List getAnimals(){

    return animals;

  }

}

Create a jsp using the tag <s:radio>.It renders a radio button input field.

radioTag.jsp


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

<html>

    <head>

        <title>Radio Tag Example!</title> 

     <link href="<s:url value="/css/main.css"/>" rel="stylesheet"

          type="text/css"/>  

  </head>

    <body>

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

  <s:form>

    <s:radio label="Fruits" name="fruitsname" list="fruits" />

    <s:radio label="Animals" name="animalsname" list="animals" />

  </s:form>

  </body>

</html>

Output of the radioTag.jsp:

Current Comments

7 comments so far (post your own) View All Comments Latest 10 Comments:

I am facing one problem using Struts2:
I have 1 JSP in which a dynamically generated list is shown with checkboxes like below:

Sr No. Phase

[] 1 Analysis
[] 2 Operations
[] 3 harish
If I choose 2 of these & click on Edit button,how will I get the values of the checked row on the action class??
Please help me out..
Thanks in advance.
Anupkumar.

Posted by anupkumar on Tuesday, 10.7.08 @ 17:24pm | #80947

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How do to render the tags of the radio button for td. Where to appear in several columns?

Posted by Solimar Alves dos Santos on Tuesday, 08.5.08 @ 19:52pm | #71144

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Well I've exactly pasted this code and my radio button isn't displayed because of this error :

SEVERE: Servlet.service() for servlet jsp threw exception
tag 'radio', field 'list', name 'fruitsname': The requested list key 'fruits' could not be resolved as a collection/array/map/enumeration/iterator type. Example: people or people.{name} - [unknown location]

Anyone know how to fix this error ?

Posted by Raiden on Wednesday, 04.30.08 @ 20:48pm | #58234

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Hi,

Your website is very great and helpful.

I need small in my code using radio buttons.

So if you can give code changes for the following question, I can use it my bean.

In the above example,

1. if I want to set Mango in fruits list and Dog in animals list what code changes should be done at bean level.

2. To get the list of fruits and animals selected in JSP, what code changes needs to be done at bean level?

Thanks
Suresh

Posted by Suresh on Tuesday, 04.1.08 @ 01:17am | #54905

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Dear Sahar,
You must use String type in Lists, not an Object:p (e.g. List<String> not List<Fruit>), Do not forget this for the next project!

Posted by Farzaneh on Sunday, 10.7.07 @ 16:25pm | #32334

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Your list should be a Map. If it isn't, the key will be initialized to whatever the toString() method of the class returns: "action.fruits@f3hg"

Posted by Razvan on Wednesday, 09.26.07 @ 16:33pm | #29714

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hi,
I have a class which has a field that must be filled by choosing one of the options of radio button on my web page. Assume I have selected apple option in above example, I expect the fruit field of class to be apple, but it contains value action.fruits@f3hg.
Do you have any ideas what the problem is.
Hope to receive an answer,
thanks

Posted by Sahar on Friday, 09.7.07 @ 18:06pm | #26315

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