Spring form path with multiple model attributes with the same property name

Question

The problem is that I have a spring form and 2 @ModelAttribute params with the same properties in my controller. The 'commandName' parameter of the the form is set to one of my modelAttributes names. I was surprised that the maps the property not only to the model attribute specified with 'commandName', but also to the second one.

I haven't found the exact solution here, except the similar to mine: Spring-form multiple forms with same model atribute name properties

But in my case I can't see any 'strange things', I have one form, one Model attribute to bind this form, and one model attribute to have accsess to controller scoped @SessionAttribute. I've also tried to use form's 'modelAttribute' parameter (Actually I can't see any difference between them), but it didn't help.

My code example:

view.jsp:

<form:form name="form" action="/myAction" method="POST" commandName="model1">
    <form:input path="property"/>
    ....
    <input type="submit" value="Submit"/>
</form:form>

Controller.java

@SessionAttributes("model2")
class Controller {
    @RequestMapping(value = "/myAction", method = POST)
    public String submitEditSite(final @ModelAttribute(value = "model1") Model1 model1,
                                 final @ModelAttribute(value = "model2") Model2 model2) {
        ....
        return "redirect:/home";
    }
}

Model1.java Model2.java

class Model1 {
    private String property;
}
class Model2 {
    private String property;
}

Where am I wrong?

Robin · Accepted Answer · 2014-07-25 13:43:47Z

3

If I understand you correctly you want to prevent the setting of any property on model2, right? Then this should do:

  @InitBinder("model2")
  public void initBinder(WebDataBinder binder) {
    binder.setDisallowedFields("*");
  }

answered Jul 25, 2014 at 13:43

Robin

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