springmvc how to send multi dimensional radiobutton array to controller - spring-mvc

Question

I am trying to make a feedback from but i am not able to get any example on how to send multidimensional int array from form to controller.
feedback from pic : http://oi58.tinypic.com/p1z10.jpg
Controller
#RequestMapping(value = "/submitfeedback", method = RequestMethod.POST)
public String postsubmitfeedback(#ModelAttribute("answer") #RequestParam("email") String email,
#RequestParam("feedback_id") Integer feedback_id, #RequestParam(value="myanswer[]") int [] myanswer, Answer answer,
Locale locale) {
for(int i=0; i<myanswer.length;i++) {
System.out.println(myanswer[i]);
}
return "submitfeedback";
}
Jsp Form
<form:form commandName="feedback">
<c:forEach items="${questionList}" var="question">
<c:set var="counter" value="${counter + 1}"/>
<tr>
<td>${counter}</td>
<td>${question.question}</td>
<td><input type="radio" name="myanswer[${count}]" id="radio" value="1" /> 1</td>
<td><input type="radio" name="myanswer[${count}]" id="radio" value="2" /> 2</td>
<td><input type="radio" name="myanswer[${count}]" id="radio" value="3" /> 3</td>
<td><input type="radio" name="myanswer[${count}]" id="radio" value="4" /> 4</td>
<td><input type="radio" name="myanswer[${count}]" id="radio" value="5" /> 5</td>
</tr>
<c:set var="count" value="${count+1}"/>
</c:forEach>
</form:form>

Answer 1

First, I strongly recommend you to encapsulate your parameters in an object.
class FeedbackForm {
private String email;
private Integer feedbackId;
private Integer answer;
/** Getters and setters. */
}
The html form inputs' names should match the field names.
Secondly, you have a radio button control, I doubt you will end up with an array of ints, since you can only have one radio button selected at all times. In the bean above, I've corrected it to a single answer. Radio buttons are a bit bizarre, since they're multiple inputs inside the form. you should probably have something like this :
<input type="radio" name="answer" value="1" onClick="changeMyHiddenField()" />1
<input type="radio" name="answer" value="2" onClick="changeMyHiddenField()" />2
<input type="radio" name="answer" value="3" onClick="changeMyHiddenField()" />3
<form {...}> <input id="myHiddenField" type="hidden" name="answer" /> </form>
Thirdly, You have no validation of the client's input. You should take advantage of Spring's bean validation.
#Min(value = 1, message = "Min is 1.")
#Max(value = 5, message = "Max is 5.")
private Integer answer;
Finally, your method signature should look like this:
public String postFeedback(#ModelAttribute #Valid FeedbackForm form, HttpServletRequest request, Locale locale);