How do I return a view from a spring controller using an ajax request?

Question

I make an ajax request using jquery, this calls the following spring controller:

@RequestMapping(value = \"/dialogController\", method = RequestMethod.POST)
         


        

Answer 1

For the viewers at home ... I found that the problem was due to the method signature defined in controller not matching the ajax call. I removed the Model model parameter from controller method. I also then realized I had to also return a new model and view; here is the working code:

var myJSON  = {"title":"help"}; 
myJSON = JSON.stringify(myJSON);

<c:url var="postAndView" value="/PostJSONMAV" />
...
jQuery.ajax({
    type: 'POST',
    url: "${postAndView}",
    data:myJSON,
    contentType: "application/json",
    success:  function(data) {          
        previewDialog.html(data);
        previewDialog.dialog('open');
    }
});

I changed to the ajax call but jQuery.postJSON() will probably work aswell. And shown below is the new controller code, which corrrectly adds a new object to model and returns jsp page, which is opened up in a dialog:

@RequestMapping(value = "/PostJSONMAV", method = RequestMethod.POST)
public  ModelAndView postJSON(@RequestBody MyClass myClass) {
    ModelAndView mav = new ModelAndView();
    myClass.setTitle("SUCCESS");
    mav.setViewName("dialogContent");
    mav.addObject("myClass", myClass);
    return mav;     
}