NumberFormatException on using form:radiobuttons

[vikas sharmaa]

i am using Spring 3.0

the below for loop in jsp is working fine:

<c:forEach items="${myList}" var="my" varStatus="status">   
    <td>${my.salary}</td>   
</c:forEach>

but, when i replaced the for loop with form:radiobuttons tag as shown below:

<form:radiobuttons path="myList" items="${myList.salary}"/>

it is giving the below error:

java.lang.NumberFormatException: For input string: "salary"

salary is of int type. please tell me, where i am going wrong? Thank you.

[David Newton]

Because the list is in myList, not myList.salary.

http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/view.html#view-jsp-formtaglib-radiobuttonstag

[vikas sharmaa]

Thank you Newton,

i tried this:

<form:radiobuttons path="myList" items="${myList}"/>

but this time, i am getting the below error:

java.lang.IllegalArgumentException: 'items' must not be null

Even though, myList is not null.

please help.

[David Newton]

Is myList in the model object?

[vikas sharmaa]

myList is the object of Position class. and position is in the model object.

so, i understood my mistake and change the code as shown below:

<form:form commandName="position">

<form:radiobuttons path="myList" items="${myList}"/>

</form:form>

but, i am getting this error now:

java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'position' available as request attribute

[David Newton]

Without the code (and possibly config) it's impossible to help: if you search the web for that specific exception you'll probably find out what you're doing wrong.

[vikas sharmaa]

thank you very much Newton. The issue is resolved now! I was using model.addAttribute(position) instead of model.addAttribute("position", position). Because my model object is position but model class is MyPosition.

I guess, i need to write a toString() method in User class to display the contents properly.