将数组作为 JSON 发布到 MVC 控制器 [英] Post Array as JSON to MVC Controller

问题描述

我一直在努力寻找解决此问题的方法.

I have been struggling to find a solution to this problem.

在我的代码中，我正在构建一个对象数组；

In my code, I am building up an array of an object;

var $marks = [];

var mark = function ( x, y, counter ){
    this.x = x;
    this.y = y;
    this.counter = counter;
}

$marks.push(new mark(1, 2, 0));   
$marks.push(new mark(1, 2, 1));
$marks.push(new mark(1, 2, 2));

现在我想将此数据发布到 MVC 控制器，因此我认为控制器中的数据类型将是 List;标记 或标记数组.

Now I want to post this data to a MVC controller, so I would think that the data type in the controller would be a List<Mark> Marks or an array of Marks.

要贴数据，我试过了；

var json = JSON.stringify($marks);
$.post('url', json).done(function(data){ /* handle */ });

或

var json = { Marks: $marks };
$.post('url', json).done(function(data){ /* handle */ });

第二种方式，看贴出来的数据，是这样的

The second way, when looking at the data posted, looks like this

Marks[0][x]: 1
Marks[0][y]: 2
Marks[0][counter]: 0
Marks[0][x]: 1
Marks[0][y]: 2
Marks[0][counter]: 1
Marks[0][x]: 1
Marks[0][y]: 2
Marks[0][counter]: 2

但我不确定如何将其转换为控制器中的强类型对象?

But I am not sure how to translate this into a strongly typed object in the controller?

我的控制器看起来像这样；

My Controller looks like this;

[HttpPost]
public ActionResult JsonSaveMarks(List<Mark> Marks){
    // handle here
}

我的 Mark 类看起来像这样；

My Mark class looks like this;

public class Mark{
     public string x { get; set; }
     public string y { get; set; }
     public string counter { get; set; }
}

我已经阅读了有关创建自定义 JsonFilterAttribute，或使用 System.Web.Script.Serialization.JavaScriptSerializer 类，但我什么都做不了

I have read through other similar problems about creating a custom JsonFilterAttribute, or using the System.Web.Script.Serialization.JavaScriptSerializer class, but I cant get anything to work

我在这里遗漏了什么明显的东西吗?控制器中的数据类型是否完全错误?如何将发布的这些数据转换为强类型对象?

Is there something obvious I am missing here? Have I got the DataType in the controller completely wrong? How can I convert this data posted into a strongly typed object?

非常感谢

推荐答案

$.post() 不允许您设置 AJAX 调用的内容类型 - 您可能会发现(如果您使用 Fiddler)，您的 Json 字符串发送的内容类型为application/x-www-form-urlencoded"(默认设置)，这会导致 Asp.Net MVC 错误地解释您的数据包.

$.post() doesn't allow you to set the content type of your AJAX call - you might find (if you use Fiddler) that your Json string is being sent with a content-type of "application/x-www-form-urlencoded" (the default setting) which then causes Asp.Net MVC to incorrectly interpret your data packet.

您可以尝试使用 $.ajax() 代替，并将内容类型设置为application/json"吗?

Can you try using $.ajax() instead, and set the content type to "application/json"?

http://api.jquery.com/jQuery.ajax/

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