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 - ERROR
app.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 - ERROR
app.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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