javascript 如何将状态 401 从 WebAPI 返回到 AngularJS 并包含自定义消息？
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How do you return status 401 from WebAPI to AngularJS and also include a custom message?
提问by Daisha Lynn
In my WebAPI class, an ApiController, I make a call such as:
在我的 WebAPI 类中，ApiController我进行了如下调用：
string myCustomMessage = .....;
throw new HttpResponseException(
new HttpResponseMessage(HttpStatusCode.Unauthorized)
{ ReasonPhrase = myCustomMessage });
When I call using AngularJS $resourceservice, I do get 401 in the status field the response, in the catch block of the promise. The 401 matches HttpStatusCode.Unauthorized, so all's well.
当我使用 AngularJS$resource服务调用时，我确实在响应的状态字段中获得了 401，在承诺的 catch 块中。401 匹配HttpStatusCode.Unauthorized，所以一切都很好。
The problem, however, is that the data field of the response is empty (null). I don't get the myCustomMessage returned.
然而，问题是响应的数据字段为空（null）。我没有得到返回的 myCustomMessage。
Now, if rather than throwing a HttpResponseExceptionexception, I just throw a regular Exceptionwith a message, that message does make it sway back to Angular.
现在，如果HttpResponseException我不是抛出异常，而是抛出一个Exception带有消息的常规消息，那么该消息确实会使其摇摆回 Angular。
I need to be able to do both: return a custom message from the server, as well as have the returned status code be whatever I want, in this case 401.
我需要能够做到这两点：从服务器返回自定义消息，以及返回的状态代码是我想要的，在这种情况下是 401。
Anyone know how to make that work?
有谁知道如何使它工作？
[edit] Solution:
[编辑] 解决方案：
throw new HttpResponseException(
Request.CreateErrorResponse(HttpStatusCode.Unauthorized, myCustomMessage));
采纳答案by Badri
Try returning HttpResponseMessagelike this.
尝试这样返回HttpResponseMessage。
public HttpResponseMessage Get()
{
return Request.CreateErrorResponse(
HttpStatusCode.Unauthorized, "You are not authorized");
}
This should produce an HTTP response message like this.
这应该会产生这样的 HTTP 响应消息。
HTTP/1.1 401 Unauthorized
Content-Type: application/json; charset=utf-8
Server: Microsoft-IIS/8.0
Date: Sat, 12 Apr 2014 07:12:54 GMT
Content-Length: 36
{"Message":"You are not authorized"}
回答by Amir Popovich
I use a response interceptor for that. A response interceptor is pretty much a "filter" where all responses pass through and I can ask about there status code and perform logic.
我为此使用了响应拦截器。响应拦截器几乎是一个“过滤器”，所有响应都通过其中，我可以询问那里的状态代码并执行逻辑。
Something like this:
像这样的东西：
myModule.factory('responseInterceptor', function ($q) {
return {
response: function (res) {
switch(res.status){
case 401:
// do what you want
}
return res;
},
responseError: function (res) {
return $q.reject(res);
}
};
});
myModule.config(function ($httpProvider) {
$httpProvider.interceptors.push('responseInterceptor');
});
About your custom message, you can add it in a http header. In my case, when I get a 401, I add a location header with a url and redirect to it.
关于您的自定义消息，您可以将其添加到 http 标头中。就我而言，当我收到 401 时，我添加了一个带有 url 的位置标头并重定向到它。
