title: Spring MVC Thymeleaf : Object parameter attributes value is always null
body: <p>I'm trying to pass the differents form values to controller with object parameter like this : </p>
  
  <p>in my view i've : </p>
  
  <pre><code>&lt;form id="line_form" action="#" th:object="${lineFilter}" method="post"&gt;
  &lt;input type="text" id="nameHolder" th:field="*{msisdn}"&gt;
  &lt;input type="text" id="nameHolder" th:field="*{nameHolder}"&gt;
  ...
  &lt;/form&gt;
  </code></pre>
  
  <p>And in my controller, i've this method :</p>
  
  <pre><code>@ResponseBody
  @RequestMapping(value = "/listFilteredByAccount", produces = MediaType.APPLICATION_JSON_VALUE)
  public DatatablesResponse&lt;LineVO&gt; getLineFilteredListWithAccount(LineFilter lineFilter, @DatatablesParams DatatablesCriterias criterias, Model model, Locale locale, HttpServletRequest req, String entity)
  </code></pre>
  
  <p>In my method controller, the fields of lineFilter are always null
  I can call previous method with button also</p>
  
  <p>Also, the url was called by dataTable like this :</p>
  
  <pre><code>dt:url="@{/orders/listFilteredByAccount}"
  </code></pre>
  
  <p>what i've forgot for set the good values of fields ?</p>
  
  <p>I'm using Thymeleaf with Spring MVC</p>