Struts2 Radio: how to customize the value of the input

Question

I am making a survey web app. For each question, I have like this:

Question: this is a question. Please select the best choice.

1. This is Option 1;
2. This is Option 2;
3. This is Option 3.

*The option list is dynamic.

And I am using Struts2 radio

So in my Java action class, I have

question.addOptions("This is option 1.");
question.addOptions("This is option 2.");
question.addOptions("This is option 3.");

And in my jsp, I have

<s:radio label="Please select the best choice" name="answer" list="options"/>

where "answer" is an attribute(instance variable) of my action class, to record the selection.

So right now as I select one of the options, I can see "answer" record the value as "This is Option x". Not bad.

However, here is what I want to achieve. I want "answer" to value "x" instead of "This is Option x." But I have really not found a way to customize this part.

Answer 1

1) Solution using JSP Change

Here value of x is 1 or 2 or 3 or 4. Instead of "This is Option x"

<s:radio label="YourQuestion" name="yourAnswer" list="#{'1':' This is Option 1','2':' This is Option 2','3':' This is Option 3','4':' This is Option 4'}" value="1" />

value attribute will set the default value. list will contain the radio button values.

2) EDIT: Another Solution Using Java

For Dynamic Options create something like this

 public class RadioOptions{

           private String key;
           private String value;
           //getter and setter methods
        }

Here you can retrieve the calls using the key value.

List<RadioOptions> radioOption= new ArrayList<RadioOptions>();
        radioOption.add( new RadioOptions("1", "This is option 1.") );
        radioOption.add( new RadioOptions("2", "This is option 2.") );
        radioOption.add( new RadioOptions("3", "This is option 3.") );
        radioOption.add( new RadioOptions("4", "This is option 4.") );

Your HTML Tag look like this.

<s:radio label="Please select the best choice" name="answer" list="radioOption" 
 listKey="key" listValue="value" value="1" />