AngularJs邮政的WebAPI总是空 [英] AngularJs Post to WebApi is always null

问题描述

角code：

  getAuthorizationStatus：功能（）{
                    变种推迟= $ q.defer（）;
                     $ HTTP（{
                        方法：POST，
                        网址：网址，
                        数据：{
                            用户名：$ scope.username，
                            密码：$ scope.password
                        }，
                        的contentType：应用/ JSON，
                        标题：{
                        内容类型：应用程序/ x-WWW的形式urlen codeD;字符集= UTF-8
                    }
                    }）。成功（deferred.resolve）
                      .error（deferred.reject）;
                    返回deferred.promise;
                }，
 

我的服务器端code：

  [HttpPost]
        公众诠释的ValidateUser（[FromBody]凭证的凭证）
        {
            尝试
            {
                字符串的用户名= credentials.username;
                字符串密码= credentials.password;
          //做东西
        }
        赶上（异常前）
        {
            扔恩;
            返回-1;
        }        返回-1; //无效的用户
    }
 

我遇到的问题是，我能够打API方法，但里面的数据总是空。我曾尝试这样几种组合：

 数据：JSON.stringify（{
                            用户名：用户名，
                            密码：输入mypassword
                        }），
 

没有骰子。

我是什么在错误行为？

解决方案

我反而试图改变 $ HTTP 的POST的默认和适当的行为，反而让服务器从正确的地方读取数据。从 MVC控制器摘自：从HTTP身体得到JSON对象？

  [HttpPost]
公众的ActionResult指数（INT？ID）
{
    流REQ = Request.InputStream;
    req.Seek（0，System.IO.SeekOrigin.Begin）;
    JSON字符串=新的StreamReader（REQ）.ReadToEnd（）;    InputClass输入= NULL;
    尝试
    {
        //假设JSON.net/Newtonsoft库从http：//json.$c$cplex.com/
        输入= JsonConvert.DeserializeObject＆LT; InputClass＆GT;（JSON）
    }    赶上（异常前）
    {
        //尝试和处理畸形的POST体
        返回新的HTTPStatus codeResult（的HTTPStatus code.BadRequest）;
    }    //做东西}
 

  

原来，MVC并没有真正的POST体绑定到任何
  特定类。你也不能只取POST身体的参数
  在的ActionResult（在另一个答案的建议）。很公平。你需要
  从请求获取视频流式传输自己和处理它。

Angular Code:

 getAuthorizationStatus: function () {
                    var deferred = $q.defer();
                     $http({
                        method: "POST",
                        url: url,
                        data: {
                            username: $scope.username,
                            password: $scope.password
                        },
                        contentType: 'application/json',
                        headers: {
                        'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
                    }
                    }).success(deferred.resolve)
                      .error(deferred.reject);
                    return deferred.promise;
                },

My Server side code:

  [HttpPost]
        public int ValidateUser([FromBody]Credentials credentials)
        {
            try
            {
                string username = credentials.username;
                string password = credentials.password;
          //Do stuff
        }
        catch (Exception ex)
        {
            throw ex;
            return -1;
        }

        return -1; // not valid user
    }

The problem I am having is I am able to hit the Api Method but the data inside is always null. I have tried several combinations like this:

  data:  JSON.stringify({
                            "username" : "username",
                            "password":"mypassword"
                        }),

No dice.

What am I doing in wrong ?

解决方案

I would instead trying to change the default and appropriate behavior of $http's POST, instead let the server read the data from the right place. Taken from MVC controller : get JSON object from HTTP body?:

[HttpPost]
public ActionResult Index(int? id)
{
    Stream req = Request.InputStream;
    req.Seek(0, System.IO.SeekOrigin.Begin);
    string json = new StreamReader(req).ReadToEnd();

    InputClass input = null;
    try
    {
        // assuming JSON.net/Newtonsoft library from http://json.codeplex.com/
        input = JsonConvert.DeserializeObject<InputClass>(json)
    }

    catch (Exception ex)
    {
        // Try and handle malformed POST body
        return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
    }

    //do stuff

}

It turns out that MVC doesn't really bind the POST body to any particular class. Nor can you just fetch the POST body as a param of the ActionResult (suggested in another answer). Fair enough. You need to fetch it from the request stream yourself and process it.

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