英文:
IApplicaionBuilder dos not contain a definition UseEndpoints. app.UseEndpoints(...) not workin on ASP.NET CORE
问题
我正在尝试在我的项目中使用SignalR，但当我尝试使用app.UseEndpoints(...)时，它给我一个错误，说"IApplicationBuilder does not contain UserEndpoints"。这是我的StartUp类上的代码：
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.public void Configure(IApplicationBuilder app, IHostingEnvironment env){if (env.IsDevelopment()){app.UseDeveloperExceptionPage();app.UseDatabaseErrorPage();}else{app.UseExceptionHandler("/Home/Error");app.UseHsts();}app.UseHttpsRedirection();app.UseStaticFiles();app.UseCookiePolicy();app.UseAuthentication();// SIGNAL R - ERRORapp.UseEndpoints(endpoints =>{endpoints.MapHub<ChatHub>("/myHub");});app.UseMvc(routes =>{routes.MapRoute(name: "default",template: "{controller=Home}/{action=Index}/{id?}");});}
你应该怎么做？
我的Hub类：
public class MyHub : Microsoft.AspNet.SignalR.Hub{public async Task PostMarker(string latitude, string longitude){await Clients.All.SendAsync("ReceiveLocation", latitude, longitude);}}
英文:
I'm trying to incorporate signalR on my project, but when I try to use app.UseEndpoints(...) it gives me an error saying that "IApplicationBuilder does not contain UserEndpoints. Here is the code on my StartUp class:
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.public void Configure(IApplicationBuilder app, IHostingEnvironment env){if (env.IsDevelopment()){app.UseDeveloperExceptionPage();app.UseDatabaseErrorPage();}else{app.UseExceptionHandler("/Home/Error");app.UseHsts();}app.UseHttpsRedirection();app.UseStaticFiles();app.UseCookiePolicy();app.UseAuthentication();//SIGNAL R - ERRORapp.UseEndpoints(endpoints =>{endpoints.MapHub<ChatHub>("/myHub");});app.UseMvc(routes =>{routes.MapRoute(name: "default",template: "{controller=Home}/{action=Index}/{id?}");});}}
What should I do?
My Hub:
public class MyHub : Microsoft.AspNet.SignalR.Hub{public async Task PostMarker(string latitude, string longitude){await Clients.All.SendAsync("ReceiveLocation", latitude, longitude);}}
答案1
得分: 11
根据您的评论，您正在针对.NET Core 2.1，但UseEndpoints扩展方法是在3.0中引入的。
要在2.1中添加SignalR，首先确保您的ConfigureServices方法中有services.AddSignalR();。其次，在Configure方法中，您应该使用app.UseSignalR，而不是UseEndpoints。
像这样：
app.UseSignalR(route =>{route.MapHub<MyHub>("/myHub");});
英文:
As per your comment, you are targeting .NET Core 2.1, but the UseEndpoints extension method was introduced in 3.0.
To add SignalR in 2.1, firstly make sure you have services.AddSignalR(); in your ConfigureServices method. Secondly, you should use app.UseSignalR in the Configure method, instead of UseEndpoints.
Like so:
app.UseSignalR(route =>{route.MapHub<MyHub>("/myHub");});
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