从 ASP.NET 内核 3.1 API 调用 WCF 服务

Question

I am getting below error when I am trying to call WCF service from ASP.Net Core, this is happening only when both wcf service and API deployed on IIS 10.

Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) System.ServiceModel.CommunicationException: No connection could be made because the target machine actively refused it . ---> System.Net.Http.HttpRequestException:由于目标机器主动拒绝，无法建立连接。 ---> System.Net.Sockets.SocketException (10061): 由于目标机器主动拒绝，无法建立连接。 在System.Net.Http.ConnectHelper.ConnectAsync（字符串主机，Int32 端口，CancellationToken cancelToken）

我能够从 ASP.NET MVC controller 连接相同的 WCF 服务。 只有当我们从 .net 内核访问时它才会失败。

任何想法在这里，将不胜感激。

谢谢，帕尼

Answer 1

It was my bad, when we add an WCF service reference, to .net stranded library it will end up with adding " ConnectedService.json ", this JSON will have reference to WCF endpoint, i was going by that. 但实际上 reference.cs 并没有从 ConnectedService.json 读取 URL，它是在 reference.cs 中硬编码的。

解决方案是我在创建服务客户端实例时覆盖了 URL。

SomeServiceClient = new MyWebService.SomeServiceClient(); IConfigurationRoot 配置 = new ConfigurationBuilder().SetBasePath(Directory.GetCurrentDirectory()).AddJsonFile("appsettings.json").Build(); SomeServiceClient.Endpoint.Address = new EndpointAddress(configuration?.GetSection("WSSettings")?.GetSection("WSEndPoint")?.Value);

其中 WSSettings 是 appsettings.json 中的部分，而 WSEndPoint 是包含 WCF 端点的关键