问题描述
我正在将数据从 javascript 应用程序发送到 MVC5 控制器,但是当数据提交到提交控制器操作时,它永远不会被调用.我有一些非常简单的映射器,它们创建了以下 JSON 对象:
I am sending data from from a javascript app to a MVC5 controller, however when data is submitted to the Submit controller action, it is never called. I have some very simple mappers which create the following JSON object:
function mapContactDto(vm)
{
var contactDto = {};
contactDto.firstName = vm.firstName();
contactDto.lastName = vm.lastName();
contactDto.companyName = vm.companyName();
contactDto.emailAddress = vm.emailAddress();
contactDto.phonePrimary = vm.phonePrimary();
contactDto.phoneSecondary = vm.phoneSecondary();
contactDto.address1 = vm.address1();
contactDto.address2 = vm.address2();
contactDto.city = vm.city();
contactDto.postalCode = vm.postalCode();
contactDto.country = vm.country();
return contactDto;
}
function mapCartItems(vm)
{
var cartItemsDto = new Array();
$.each(vm.selectedOptions(), function (index, step, array) {
var sku = step.selection().sku;
if (sku !== "0") {
cartItemsDto.push(sku);
}
});
return cartItemsDto;
}
/* if i dump the object that is sent to the server with `console.log(JSON.stringify(item))` I get:
{
"skus": ["1001","8GB","201"],
"contact": {
"firstName":"Jon",
"lastName":"Doe",
"companyName":"Yup my company",
"emailAddress":"[email protected]",
"phonePrimary":"012111 231",
"phoneSecondary":"",
"address1":"1 Billing Way",
"address2":"Navigation House",
"city":"London",
"postalCode":"112211",
"country":"GB"
}
}
*/
然后我使用以下代码发送数据:
I then send the data with the following code:
var contactDto = mapContactDto(self.billingVm());
var cartItemsDto = mapCartItems(self.configurationVm());
var req = new XMLHttpRequest();
req.open('HEAD', document.location, false);
req.send(null);
var item = {
skus: mapCartItems(cartItemsVm()),
contact: mapContactDto(billingVm())
};
var url = '/Knockout/Submit';
$.ajax({
cache: false,
url: url,
contentType: 'application/json; charset=utf-8',
dataType: 'json',
data: item,
type: 'POST',
success: function (data, textStatus, jqXHR) {
},
error: function (data, textStatus, jqXHR) {
}
});
我的控制器代码如下:
public JsonResult Submit(string[] Skus, ContactDto Contact)
{
return Json(new { success = true, message = "Some message" });
}
/* and MVC models are: */
public class ContactDto
{
public string FirstName { get; set; }
public string LastName { get; set; }
public string CompanyName { get; set; }
public string EmailAddress { get; set; }
public string PhonePrimary { get; set; }
public string PhoneSecondary { get; set; }
public string Address1 { get; set; }
public string Address2 { get; set; }
public string City { get; set; }
public string PostalCode { get; set; }
public string Country { get; set; }
}
我有以下问题:
Submit 永远不会被调用,但是,如果我注释掉控制器参数使其成为
Submit()
然后它被调用,为什么会这样?
Submit is never called however, if I comment out the controller parameters so it becomes
Submit()
then it is called, why is this?
从上面看来,控制器框架似乎无法匹配参数 - 知道我做错了什么吗?
From the above, it seems like the controller framework cannot match up the parameters - any idea what I am doing wrong please?
如何在 MVC 控制器上启用调试,以便我可以看到发生了什么?
How to enable debugging on the MVC controller so I can see what's going on?
推荐答案
您必须进行两项更改:将您的 Json 字符串化如下:
You will have to make two changes:Stringify your Json as below:
$.ajax({
cache: false,
url: url,
contentType: 'application/json; charset=utf-8',
dataType: 'json',
data: JSON.stringify(item),
type: 'POST',
success: function (data, textStatus, jqXHR) {
},
error: function (data, textStatus, jqXHR) {
}
});
其次,只需使用 [HttpPost]
注释您的方法,如下所示:
Second, Just Annotate your Method with [HttpPost]
as below:
[HttpPost]
public JsonResult Submit(string[] Skus, ContactDto Contact)
{
return Json(new { success = true, message = "Some message" });
}
这篇关于未从 JSON AJAX Post 调用 MVC5 控制器操作的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!