修改判断位置

Author: liguoliang

src/DotNetCoreRpc.Client/RequestHandler.cs

@@ -112,9 +112,10 @@ private async Task<byte[]> SendRequest(MethodInfo methodInfo, params object[] ar
                 ? "/DotNetCoreRpc/ServerRequest" : "";
 
             var responseMessage = await _httpClient.PostAsync(path, httpContent);
-            byte[] result = await responseMessage.Content.ReadAsByteArrayAsync();
             //判断http请求状态
             responseMessage.EnsureSuccessStatusCode();
+
+            byte[] result = await responseMessage.Content.ReadAsByteArrayAsync();
             return result;
         }
     }