c# - ASP.NET Core 中的 WCF 跟踪

Question

我们过去使用 WCF over ASP.NET，最近切换到 WCF over ASP.NET Core。这很难实现，因为 ASP.Net Core 不支持开箱即用的 WCF。一方面，整个 web.config XML 配置模型已转储到 ASP.NET Core 中，因此我们无法在那里配置 WCF 跟踪。

即这个文件没用: https://learn.microsoft.com/en-us/dotnet/framework/wcf/diagnostics/tracing/configuring-tracing

我们不得不通过在 WCF 和端口 80 之间放置一个 http 代理来破解 ASP.NET Core。WCF 实际上在另一个端口上运行。

问题是，如果 ASP.NET Core 不关注 web.config，我们如何启用 WCF 跟踪？

Answer 1

在客户端跟踪的情况下，我使用自定义端点行为 (IEndpointBehavior) 和自定义消息日志检查器 (IClientMessageInspector) 来获取输入和输出消息。

客户端初始化:

_serviceClient = new MyCustomServiceClient();
_serviceClient.Endpoint.Address = new System.ServiceModel.EndpointAddress(_configParams.ServiceUri);
_serviceClient.Endpoint.EndpointBehaviors.Add(new EndpointLoggingBehavior("MyCustomService"));

EndpointLoggingBehavior 的实现:

public class EndpointLoggingBehavior : IEndpointBehavior
    {
        public EndpointLoggingBehavior(string serviceName)
        {
            _serviceName = serviceName;
        }

        private readonly string _serviceName;

        public void AddBindingParameters(ServiceEndpoint endpoint,
            System.ServiceModel.Channels.BindingParameterCollection bindingParameters)
        {
        }

        public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
        {
            clientRuntime.ClientMessageInspectors.Add(new MessageLoggingInspector(_serviceName));
        }

        public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
        {
        }

        public void Validate(ServiceEndpoint endpoint)
        {
        }
    }

MessageLoggingInspector 的实现:

public class MessageLoggingInspector : IClientMessageInspector
    {
        private readonly string _serviceName;
        public MessageLoggingInspector(string serviceName)
        {
            _serviceName = serviceName;
        }
        public void AfterReceiveReply(ref Message reply, object correlationState)
        {
            // copying message to buffer to avoid accidental corruption
            var buffer = reply.CreateBufferedCopy(int.MaxValue);
            reply = buffer.CreateMessage();
            // creating copy
            var copy = buffer.CreateMessage();
            //getting full input message
            var fullInputMessage = copy.ToString();

        }
        public object BeforeSendRequest(ref Message request, IClientChannel channel)
        {
            // copying message to buffer to avoid accidental corruption
            var buffer = request.CreateBufferedCopy(int.MaxValue);
            request = buffer.CreateMessage();
            // creating copy
            var copy = buffer.CreateMessage();
            //getting full output message
            var fullOutputMessage = copy.ToString();
            return null;
        }
    }

然后，当然，您需要将这些消息写入任何存储。