無法從網絡API2

繼獲得響應報頭中的角JS是網頁API2方法返回的響應：無法從網絡API2

Response Headers 

{ 
    "cache-control": "no-cache", 
    "pragma": "no-cache", 
    "content-type": "application/json; charset=utf-8", 
    "expires": "-1", 
    "server": "Microsoft-IIS/10.0", 
    "token": "ac3903cc-7c9b-469a-85ea-677ff9773d43", 
    "tokenexpiry": "900", 
    "access-control-expose-headers": "Token,TokenExpiry", 
    "x-aspnet-version": "4.0.30319", 
    "x-sourcefiles": "=?UTF-8?B?QzpcRGV2ZWxvcG1lbnRcV2ViQXBpXFJlc3RXZWJBUElcV2ViQXBpRG9zQWRtaW5cV2ViQXBpRG9zQWRtaW5cYXBpXGF1dGhlbnRpY2F0ZQ==?=", 
    "x-powered-by": "ASP.NET", 
    "date": "Thu, 01 Dec 2016 10:09:11 GMT", 
    "content-length": "12", 
    "": "" 
}

我試圖讓「令牌」在我的AngularJS代碼，但我不能爲拿到它，爲實現它。我得到空或未定義：

$http.post('http://localhost:37690//api/authenticate', {Username:username,Password:password}) 
       .success(function (response,headers) { 
        //callback(response); 
        debugger; 
        if(response==='Authorized') 
        { 
         var hd=headers.common['Token']; 
         console.log(hd); 
        } 
       }) 
      .error(function (err, status) { 
       console.log(err); 
      });

我在我的Web API項目中啓用了CORS。下面是我自己寫的WebAPIconfig.cs：

我AuthenticateController類：

using System.Web.Http.Cors; 
[EnableCors(origins: "*", headers: "*", methods: "*")] 
    public class AuthenticateController : ApiController 
    { 
[Route("api/authenticate")] 
     [HttpPost] 
     public HttpResponseMessage Authenticate(UserLogin user) 
     { 
      int UserID = _userService.Authenticate(user);    
      return GetAuthToken(UserID); ; 
     } 

     /// <summary> 
     /// Returns auth token for the validated user. 
     /// </summary> 
     /// <param name="userId"></param> 
     /// <returns></returns> 
     private HttpResponseMessage GetAuthToken(int userId) 
     { 
      var token = _tokenService.GenerateToken(userId); 
      var response = Request.CreateResponse(HttpStatusCode.OK, "Authorized"); 
      response.Headers.Add("Token", token.AuthToken); 
      response.Headers.Add("TokenExpiry", ConfigurationManager.AppSettings["AuthTokenExpiry"]); 
      response.Headers.Add("Access-Control-Expose-Headers", "Token,TokenExpiry"); 
      return response; 
     }  

    }

請幫忙爲我怎麼能在我的角度JS最終響應得到頭？

來源

2016-12-01 Sormita Chakraborty

的documentation表明，頭是吸氣函數

頭 - {函數（[headerName]）} - 頭getter函數。

然後，您需要在成功回調

$http.post('http://localhost:37690//api/authenticate', {Username:username,Password:password}) 
    .success(function (response,headers) { 

     //Either get all headers in one call 
     headers = headers(); 

     //Then get the headers like this 
     var hd1=headers['token']; 
     var hd2=headers['tokenexpiry']; 

     //Or call the header one by one 
     var hd1 = headers('token'); 
     var hd2 = headers('tokenexpiry'); 

    }) 
.error(function (err, status) { 
    console.log(err); 
});

來源

2016-12-01 13:30:47

我不明白這一點把它當作一個，你這是在暗示我的代碼更改，讓我找回了頭？ –

將您的成功回調替換爲我發佈的回調。標題是一個函數。在你的例子中你喜歡這個「headers.common ..」當你應該調用函數頭（） –

@SormitaChakraborty更新我的答案 –

無法從網絡API2

回答

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