1、先定义一个类 usingMicrosoft.AspNetCore.Http; namespaceBCode.Util { publicclassMvcContext { publicstaticIHttpContextAccessorhttpContextAccessor; publicstaticHttpContextGetContext() { HttpContextcontext=httpContextAccessor.HttpContext; returncontext; } } }   2、再启动类中指定 publicvoidConfigure(IApplic...