Displaying ArrayList in a Spring Form

[wxkevin]

I am using Spring 3.1.

I am trying to display an ArrayList of objects in a Spring Form within a JSP. Eventually I need to have a checkbox for each object so that the user may select a row and then press a button for some back-end action. But I can't get the data to display using a Spring form. I keep receiving an exception:

org.springframework.beans.NotReadablePropertyExcep tion: Invalid property 'datafeed[0]' of bean class [java.util.ArrayList]: Bean property 'datafeeds[0]' is not readable or has an invalid getter method: .... "

Here is the scaled down code:

<form:form method="post" commandName="datafeeds">
  <table>
     <thead>
        <tr>
           <th>Name</th>
           <th>State</th>
        </tr>
     <tbody>
        <c:forEach items="${datafeeds}" var="datafeed" varStatus="vs">
           <tr>
              <td><form:label path="datafeeds[${vs.index}].name/></td>
              <td><form:label path="datafeeds[${vs.index}].state/></td>
           </tr>
        </c:forEach>
     </tbody>
  </tabl>
</form>

@Controller
public class DataFeedController
{
   @Autowired
   SomeService service;

   @RequestMapping(value="/datafeed")
   public String showDataFeed(Model m) {
      List<DataFeed> datafeeds = service.list();
      m.addAttribute("datafeeds", datafeeds);
      return "datafeed";
   }
}

Specifically I guess my question is how does commandName, the variables in the forEach loop and the data from the Controller all work together? Can anybody show me using the above code?

[Marten Deinum]

I suggest a read of the reference guide...

1. Don't use forEach use form:select and...
2. A label isn't to be used for displaying (I suggest a read on HTML elements).
3. path is the property on your command object not the referenced list.
4. datafeeds is your reference data NOT your formObject