将Json字符串从MVC动作反序列化到c#类

本文关键字：反序列化 Json 字符串 MVC | 更新日期: 2023-09-27 18:06:15

我有一个Ajax调用(HighChartsDB图表)在一个WebForm应用程序调用一个webservice，它使用一个WebRequest调用MVC动作在另一个应用程序返回一个JsonResult。

我设法将数据传递回ajax调用，但我得到的数据不解析为json对象，而只是一个字符串。

我的类:

public class CategoryDataViewModel
{
    public string name { get; set; }
    public List<int> data { get; set; }
    public double pointStart { get; set; }
    public int pointInterval { get { return 86400000; } }
}

highcharts调用的ajax函数:

function getBugs(mileId) {
    var results;
    $.ajax({
        type: 'GET',
        url: 'Services/WebService.svc/GetData',
        contentType: "application/json; charset=utf-8",
        async: false,
        data: { "mileId": parseInt(mileId) },
        dataType: "json",
        success: function (data) {
            console.log(data);
            results = data;
        }
    });
    return results;
}

最后是WebService

public class WebService : IWebService
{
    public string GetData(int mileId)
    {
        string url = "http://localhost:63418/Home/GetWoWData?mileId=" + mileId;
        WebRequest wr = WebRequest.Create(url);
        using (var response= (HttpWebResponse)wr.GetResponse())
        {
            using (var reader = new StreamReader(response.GetResponseStream()))
            {
                var objText = reader.ReadToEnd();
                return objText;
            }
        }
    }
}

当我在ajax调用上使用console.log(data)时，我得到:

[{'"name'":'"Sedan'",'"data'":[30,30,30,30,35],'"pointStart'":1307836800000,'"pointInterval'":86400000},{'"name'":'"Low'",'"data'":[800,800,800,826,1694],'"pointStart'":1307836800000,'"pointInterval'":86400000},{'"name'":'"Medium'",'"data'":[180,180,180,186,317],'"pointStart'":1307836800000,'"pointInterval'":86400000},{'"name'":'"High'",'"data'":[29,29,29,34,73],'"pointStart'":1307836800000,'"pointInterval'":86400000},{'"name'":'"Truck'",'"data'":[6,6,6,6,13],'"pointStart'":1307836800000,'"pointInterval'":86400000},{'"name'":'"SUV'",'"data'":[-172,-172,-172,-179,-239],'"pointStart'":1307836800000,'"pointInterval'":86400000},{'"name'":'"Convertible'",'"data'":[0,0,0,0,-404],'"pointStart'":1307836800000,'"pointInterval'":86400000},{'"name'":'"Limo'",'"data'":[-7,-7,-7,-8,-214],'"pointStart'":1307836800000,'"pointInterval'":86400000}]

我似乎不能设法传递回一个适当的Json对象。我尝试将其转换回我的CategoryDataViewModel与此在我的webservice:

    var myojb = new CategoryDataViewModel ();
    using (var response = (HttpWebResponse)wr.GetResponse())
    {
        using (var reader = new StreamReader(response .GetResponseStream()))
        {
            JavaScriptSerializer js = new JavaScriptSerializer();
            var objText = reader.ReadToEnd();
            myojb = (CategoryDataViewModel )js.Deserialize(objText, typeof(CategoryDataViewModel ));
        }
    }
    return myojb;
然后我得到Type 'Test.CategoryDataViewModel' is not supported for deserialization of an array.

将Json字符串从MVC动作反序列化到c#类

变化:

myojb = (CategoryDataViewModel )js.Deserialize(objText, typeof(CategoryDataViewModel ));

: 

myojb = (List<CategoryDataViewModel> )js.Deserialize(objText, typeof(List<CategoryDataViewModel>));

，你会没事的。该数组将反序列化为列表，没有问题。

我以前见过类似的事情，我认为你可能需要将myObj更改为列表。

List<CategoryDataViewModel> myObjs = new List<CategoryDataViewModel>();
...
myObjs = js.Deserialize<List<CategoryDataViewModel>>(objText);
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