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DouyinApi.Gateway/Extensions/CustomResultHandler.cs

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+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+using System;
+using System.Net;
+using System.Net.Http;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace DouyinApi.Gateway.Extensions
+{
+    public class CustomResultHandler : DelegatingHandler
+    {
+        JsonSerializerSettings _camelSettings = new JsonSerializerSettings() { ContractResolver = new CamelCasePropertyNamesContractResolver() };
+
+        protected async override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+        {
+            var response = await base.SendAsync(request, cancellationToken);
+            var contentType = response.Content.Headers.ContentType?.MediaType ?? "";
+            if (!contentType.Equals("application/json")) return response;
+
+            dynamic result = null;
+            var resultStr = await response.Content.ReadAsStringAsync();
+            try
+            {
+                Console.WriteLine(resultStr);
+                result = JsonConvert.DeserializeObject<dynamic>(resultStr);
+            }
+            catch (Exception)
+            {
+                return response;
+            }
+
+            if (result != null && result.errorCode == 500) resultStr = result.message.ToString();
+
+            var exception = new Exception(resultStr);
+
+            if (response.StatusCode == HttpStatusCode.InternalServerError || result.errorCode == (int)HttpStatusCode.InternalServerError)
+            {
+                var apiResult = new
+                {
+                    Result = false,
+                    Message = "服务器内部错误",
+                    ErrorCode = (int)HttpStatusCode.InternalServerError,
+                    Data = new
+                    {
+                        exception.Message,
+                        exception.StackTrace
+                    }
+                };
+                response.Content = new StringContent(JsonConvert.SerializeObject(apiResult, _camelSettings), Encoding.UTF8, "application/json");
+            }
+            else
+            {
+
+            }
+
+
+            return response;
+        }
+    }
+}