fix error when exception response has started

Attributes/SimApiAuthAttribute.cs

@@ -56,7 +56,7 @@ namespace SimApi.Attributes
                 throw new SimApiException(401);
             }
             //检测用户类型
-            if (Types.Intersect(loginInfo.Type).Count() == 0)
+            if (!Types.Intersect(loginInfo.Type).Any())
             {
                 throw new SimApiException(403);
             }

Middlewares/SimApiExceptionMiddleware.cs

@@ -14,6 +14,7 @@ namespace SimApi.Middlewares
     public class SimApiExceptionMiddleware
     {
         private RequestDelegate Next { get; }
+
         private ILogger<SimApiExceptionMiddleware> Log { get; }
 
         public SimApiExceptionMiddleware(RequestDelegate next, ILogger<SimApiExceptionMiddleware> log)
@@ -35,7 +36,10 @@ namespace SimApi.Middlewares
                 await Next(context);
                 if (context.Response.StatusCode != 200)
                 {
-                    if (!new[] {301, 302}.Contains(context.Response.StatusCode))
+                    if (!new[]
+                        {
+                            301, 302
+                        }.Contains(context.Response.StatusCode))
                     {
                         throw new SimApiException(context.Response.StatusCode);
                     }
@@ -69,10 +73,13 @@ namespace SimApi.Middlewares
         /// <param name="context"></param>
         /// <param name="response"></param>
         private void ErrorResponse(HttpContext context, SimApiBaseResponse response)
+        {
+            if (!context.Response.HasStarted)
             {
                 context.Response.StatusCode = 200;
                 context.Response.Headers.Add("Content-Type", "application/json");
                 context.Response.WriteAsync(response.ToString());
             }
         }
+    }
 }