找不到Http帖子500错误

Question

我正在尝试将JSON数组发布到控制器操作方法并将其保存到数据库中。

这是控制器：

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.8.0/js/bootstrap-datepicker.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css"/>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.3.0/css/datepicker.css"/>

<input id="date">
<button onclick="getDate()">Get Date</button>

数据库有一个gitd表。

ajax调用：

   public class Gitcontroller : Controller
    {
       public GithubContext _context;

        public Gitcontroller(GithubContext context)//the database context
        {
            _context = context;
        }
         [HttpPost]
         public IActionResult Updateto([FromBody] GitJSON gitjson)
        {

            try
            {
                if (ModelState.IsValid)
                {
                    _context.AddRange(gitjson);
                    _context.SaveChanges();//adding list to table.
                }
                return View();
            }
            catch (Exception ex)
            {

                   return RedirectToPage("Error", ex);

            }
        }
 }

型号：

 $.ajax({
                        type: 'POST',
                        url: 'http://localhost:60294/Git/Updateto',    
                        contentType: 'application/json; charset=utf-8',
                 datatype: 'JSON',
                 data: obj,
                       success: function (data) {
                            alert('Post Succesful');
                        },
                        error: function (data) {
                            alert('error');
                        }
                     });

Json：

   namespace Github.Models
{
    public class gitd
    {
        public int ID { get; set; }
        public string AvatarURL { get; set; }
        public string Name { get; set; }
        public decimal Score { get; set; }
        public DateTime Updatedat { get; set; }


    }
    public class GitJSON
    {
        public List<gitd> gitdList { set; get; }
    }
}  

构建成功，但是出现500错误，提示无法加载资源。 另外，当我在Interactive中运行Updateto时，也会得到以下信息：

 gitdList: [
      {"AvatarURL":"https://avatars1.githubusercontent.com/u/7849225? v=4","Name":"simplenlg","Score":22.82041,"Updatedat":"2018-07-21T10:58:33Z"},   
      {"AvatarURL":"https://avatars2.githubusercontent.com/u/1123352?v=4","Name":"osgi.enroute","Score":7.6444883,"Updatedat":"2018-07-17T08:26:51Z"}
   ]

我正在使用的命名空间：

> (1,2): error CS0246: The type or namespace name 'HttpPostAttribute'
> could not be found (are you missing a using directive or an assembly
> reference?) 
(1,2): error CS0246: The type or namespace name 'HttpPost'
> could not be found (are you missing a using directive or an assembly
> reference?) 
(2,17): error CS0246: The type or namespace name
> 'IActionResult' could not be found (are you missing a using directive
> or an assembly reference?) 
(2,41): error CS0246: The type or namespace
> name 'FromBodyAttribute' could not be found (are you missing a using
> directive or an assembly reference?) 
(2,51): error CS0246: The type or
> namespace name 'GitJSON' could not be found (are you missing a using
> directive or an assembly reference?) 
>  + additional 6 errors

由脚手架生成的CRUD操作也存在于名为gitds的控制器中吗？它是否会影响结果？我不认为它已定义了控制器，请查看Gitcontroller动作Updateto，并在其中创建_context。 gitcontroller。

我该如何解决？500错误是什么意思？如何成功编译并编译出错误。

Answer 1

从其存储库中提取OP的源。找到了一个与 let request = NSMutableURLRequest(url : url) let task = URLSession.shared.dataTask(with: request as URLRequest) { data, response, error in var rateValue:Double = 0.0; if let error = error { print(error) } else { if let unwrappedData = data { let dataString = NSString(data: unwrappedData, encoding: String.Encoding.utf8.rawValue) var stringSeperator = "<span class=\"ccOutputRslt\">" if let contentArray = dataString?.components(separatedBy: stringSeperator){ if contentArray.count > 0 { stringSeperator = "<span" let newContentArray = contentArray[1].components(separatedBy: stringSeperator) if newContentArray.count > 0 { rateValue = Double(newContentArray[0])! + 10 } } } } } // print("Rate is \(rateValue)"); //Rate is 11.167 } task.resume() 方法相关联的源不必要的select * from ( select column1, column2, row_number() OVER() AS rownum from table where flag = 0 ) where rownum < 1000 调用。推送了具有相关更改的PR。

https://github.com/mvermef/.NET/tree/master