在ASP.NET MVC中，jQuery AJAX PUT方法返回404错误（未找到）

Question

here is my problem, I try to use JQuery AJAX update my data in asp.net mvc, but when I use PUT method, it will return a error said 404, means it can not find my controller, but if I use GET/POST method, everything is working fine, so what's the problem? thanks!

var Test= {
    Update: function (TestId, Test, callback) {

        var errorMsg = "Missing a parameter!";
        if (!TestId) { throw errorMsg; return; }
        if (Test== null) { throw errorMsg; return; }
        if (callback == null) { throw errorMsg; return; }

        var pack = { "test" : Test};

        $.ajax({
            type: "PUT",
            url: "/test/" + TestId+ "/update",
            dataType: "json",
            data: JSON.stringify(pack),
            contentType: 'application/json; charset=utf-8',
            processData: false,
            cache: false
        }).done(function (result) {
            callback(result);
        });

    }
};

Answer 1

You should never hard-code URLs in MVC .

Instead use @Url.Action .

url: '@Url.Action("FunctionName", "ControllerName")',

If you wish to send parameters use

url: '@Url.Action("FunctionName", "ControllerName", new { ID = Model.MyID })',

Also, for the sake of your sanity, use the fail method.

$.ajax("http://url")
    .done(function() {
    alert("success");
})
    .fail(function() {
    alert("error");
})

If this doesn't fix your problem tell us what kind of error(s) are you getting.

Answer 2

Did you set it to be a accept put on the .NET side?

[HttpPut]
public JsonResult Update(int id)
{
    return Json("Your Response");
}