当您的请求数据类型不受支持时,会出现
我遇到了一个问题,尽管我看到了很多关于同一主题的答案,但没有什么真正有效的。。我有一个WebAPI项目和一个MVC项目,其中我有Angular。
在Angular项目中,我试图发布这样的东西:
var promise = $http.post("http://localhost:55692/api/users", user)
.success(function (data) {
debugger;
console.log(data);
return data;
});
$http(
{
url: "http://localhost:55692/api/users",
method: "POST",
headers: { 'Content-Type': 'application/json' },
data: { "user": user }
})
.then(function (response) {
debugger;
console.log(data);
return data;
});
return promise;
如果你看到了,我会调用同一个API两次,以防它是Angular的东西,但对我来说,它不是。。
我在我的API项目中有这个控制器:
[RoutePrefix("api/users")]
public class ValuesController : ApiController
{
[Route("")]
[HttpPost]
public HttpResponseMessage LoginOrRegister(RegisterUserViewModel user)
{
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK, true);
return response;
}
}
这是我的回应:
响应
这是我的WebConfig
<system.webServer>
<handlers>
<remove name="ExtensionlessUrlHandler-Integrated-4.0" />
<remove name="OPTIONSVerbHandler" />
<remove name="TRACEVerbHandler" />
<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
<!--<validation validateIntegratedModeConfiguration="false" />-->
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
<add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept, X-Token, X-Acting-As" />
<add name="Access-Control-Allow-Methods" value="GET,POST,PUT,DELETE,OPTIONS,PATCH" />
</customHeaders>
</httpProtocol>
</system.webServer>
编辑我的WebApiConfig如下所示:
public static class WebApiConfig
{
public static void Register(HttpConfiguration config)
{
// Attribute routing enabled
config.MapHttpAttributeRoutes();
// Convention-based routing enabled
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
config.Formatters.JsonFormatter.SerializerSettings.NullValueHandling = NullValueHandling.Include;
// Uncomment the following line of code to enable query support for actions with an IQueryable or IQueryable<T> return type.
// To avoid processing unexpected or malicious queries, use the validation settings on QueryableAttribute to validate incoming queries.
// For more information, visit http://go.microsoft.com/fwlink/?LinkId=279712.
//config.EnableQuerySupport();
// To disable tracing in your application, please comment out or remove the following line of code
// For more information, refer to: http://www.asp.net/web-api
config.EnableSystemDiagnosticsTracing();
}
}
最后,唯一"奇怪"的是我使用IISExpress,因为这是我项目的第一步。。
有人知道会发生什么吗?
经过一番斗争,这就是…
public static class WebApiConfig
{
public static void Register(HttpConfiguration config)
{
// Attribute routing enabled
config.MapHttpAttributeRoutes();
// Convention-based routing enabled
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
config.Formatters.JsonFormatter.SerializerSettings.NullValueHandling = NullValueHandling.Include;
config.MessageHandlers.Add(new PreflightRequestsHandler());
}
}
飞行前级别:
public class PreflightRequestsHandler : DelegatingHandler
{
protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
if (request.Headers.Contains("Origin") && request.Method.Method.Equals("OPTIONS"))
{
var response = new HttpResponseMessage { StatusCode = HttpStatusCode.OK };
// Define and add values to variables: origins, headers, methods (can be global)
response.Headers.Add("Access-Control-Allow-Headers", "accept, content-type");
var tsc = new TaskCompletionSource<HttpResponseMessage>();
tsc.SetResult(response);
return tsc.Task;
}
return base.SendAsync(request, cancellationToken);
}
}
我希望这能帮助到其他人!
405。您需要在以下中传递内容类型
private headers = new Headers({ 'Content-Type': 'application/json' });
private options = new RequestOptions({ headers: this.headers });
return this.http.post(this.baseUserUrl + '/Save', JSON.stringify(user), this.options)
.toPromise()
.then(response => response)
.catch((error) => Promise.reject(error));
以及在API层
public async Task<HttpResponseMessage> Save(UserDto user)
或
public HttpResponseMessage Save(UserDto user)