改为先读出xml文本。 有时候得到的结果不是xml，用stream不方便debug。

Author: cuiliang

src/Api/Base/BaseOssCommand.cs

@@ -1,6 +1,8 @@
 using System;
+using System.IO;
 using System.Net;
 using System.Net.Http;
+using System.Text;
 using System.Threading.Tasks;
 using Cuiliang.AliyunOssSdk.Api.Common.Consts;
 using Cuiliang.AliyunOssSdk.Entites;
@@ -116,9 +118,14 @@ private async Task<OssResult<TResult>> ProcessResponseInternal(HttpResponseMessa
                 //错误的http代码
                 if (response.Content?.Headers.ContentLength > 0)
                 {
+                    //var responseContent = await response.Content.ReadAsStreamAsync();
+                    //var errorResult =
+                    //    SerializeHelper.Deserialize<ErrorResult>(responseContent);
+
+                    var responseContent = await response.Content.ReadAsStringAsync();
                     var errorResult =
-                        SerializeHelper.Deserialize<ErrorResult>(await response.Content.ReadAsStreamAsync());
-                    
+                        SerializeHelper.Deserialize<ErrorResult>(responseContent);
+
                     return new OssResult<TResult>()
                     {
                         IsSuccess = false,

src/Utility/SerializeHelper.cs

@@ -28,6 +28,24 @@ public static T Deserialize<T>(Stream xmlStream)
 
         }
 
+        /// <summary>
+        /// XML 文本 -》 对象
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="stringContent"></param>
+        /// <returns></returns>
+        public static T Deserialize<T>(string stringContent)
+        {
+            var serializer = new XmlSerializer(typeof(T));
+
+            using (TextReader reader = new StringReader(stringContent))
+            {
+                return (T)serializer.Deserialize(reader);
+            }
+            
+
+        }
+
         /// <summary>
         /// 将一个对象序列化为XML字符串
         /// </summary>