Can Spring MVC have request parameters for an HTTP PUT method, or must I use post? Which should I use to be RESTful?

Question

I have a controller action I think should be an HTTP PUT, but Spring is complaining when I try and use @RequestParam in the controller action. Is request parameters not allo

Answer 1

This, as suggest above, seems to be a bug in spring/servlet API. In reality PUT requests are supposed to work on Request Body (or payload) and not on Request Parameters. In that sense, servlet API & spring's handling is correct.

Having said that, a better and much easier workaround is to pass no data element from your javascript/jQuery call and pass your parameters as part of the url itself. meaning, set parameters in the url field the way you would do in a GET call.

$.ajax({
            url: "/help/" + helpDocumentId + "/vote.json" + "?param1=param2Val&..",
            type: "PUT",
            data: "",
            success: function(response) {
                // ....
            }
     });

now this works for simple parameters, i guess, will not work for complex JSON types. Hope this helps.