客户端拦截：

    public class ClientLoggerInterceptor : Interceptor{public override AsyncUnaryCall<TResponse> AsyncUnaryCall<TRequest, TResponse>(TRequest request,ClientInterceptorContext<TRequest, TResponse> context,AsyncUnaryCallContinuation<TRequest, TResponse> continuation){var requestStr = request.ToString();var requestMethod = context.Method;var response = continuation(request, context);return response;}public override AsyncServerStreamingCall<TResponse> AsyncServerStreamingCall<TRequest, TResponse>(TRequest request, ClientInterceptorContext<TRequest, TResponse> context, AsyncServerStreamingCallContinuation<TRequest, TResponse> continuation){var requestStr = request.ToString();var requestMethod = context.Method;var call = base.AsyncServerStreamingCall(request, context, continuation);return call;}}

客户端拦截器注册：

services.AddGrpcClient<T>(options =>
{options.InterceptorRegistrations.Add(new Grpc.Net.ClientFactory.InterceptorRegistration(InterceptorScope.Client, s => new ClientLoggerInterceptor()));
});

服务端：

public class ServerLoggerInterceptor: Interceptor
{public override Task<TResponse> UnaryServerHandler<TRequest, TResponse>(TRequest request,ServerCallContext context,UnaryServerMethod<TRequest, TResponse> continuation){var requestStr = request.ToString();var requestMethod = context.Method;var response = continuation(request, context);return response;}
}