diff --git a/Falcon.SugarApi/JsonSerialize/ArrayJsonConverter.cs b/Falcon.SugarApi/JsonSerialize/ArrayJsonConverter.cs
index d3bd10c..6db9385 100644
--- a/Falcon.SugarApi/JsonSerialize/ArrayJsonConverter.cs
+++ b/Falcon.SugarApi/JsonSerialize/ArrayJsonConverter.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 
@@ -16,15 +17,30 @@ namespace Falcon.SugarApi.JsonSerialize
 
         /// <inheritdoc/>
         public override string? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
-            var str = reader.GetString().ToDefault("")!;
-            var array = JsonSerializer.Deserialize<string[]>(str) ?? new string[] { };
-            return string.Join(',', array);
+            if (reader.TokenType != JsonTokenType.StartArray) {
+                throw new Exception($"传入的数据类型错误！应该为数组，现在为{reader.TokenType.ToString()}");
+            }
+            var list = new List<string>();
+            while (reader.Read()) {
+                if (reader.TokenType == JsonTokenType.StartArray) {
+                    continue;
+                }
+                if (reader.TokenType == JsonTokenType.EndArray) {
+                    break;
+                }
+                var str = reader.GetString().ToDefault("")!;
+                list.Add(str);
+            }
+            return string.Join(',', list.ToArray());
         }
         /// <inheritdoc/>
         public override void Write(Utf8JsonWriter writer, string value, JsonSerializerOptions options) {
             var array = this.SplitChars == null ? value.SplitStr() : value.SplitStr(this.SplitChars);
-            var arrStr = JsonSerializer.Serialize(array);
-            writer.WriteStringValue(arrStr);
+            writer.WriteStartArray();
+            for (int i = 0; i < array.Length; i++) {
+                writer.WriteStringValue(array[i]);
+            }
+            writer.WriteEndArray();
         }
     }
 
diff --git a/Falcon.SugarApi/StringExtend.cs b/Falcon.SugarApi/StringExtend.cs
index 41ee913..ef3a83f 100644
--- a/Falcon.SugarApi/StringExtend.cs
+++ b/Falcon.SugarApi/StringExtend.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics.CodeAnalysis;
 
 namespace Falcon.SugarApi
 {
@@ -20,6 +21,14 @@ namespace Falcon.SugarApi
         /// <returns>与IsNullOrEmpty相反</returns>
         public static bool IsNotNullOrEmpty(this string? str) => !str.IsNullOrEmpty();
 
+        /// <summary>
+        /// 当字符串IsNullOrEmpty为True的时候返回默认值，否则返回本身
+        /// </summary>
+        /// <param name="str">字符串</param>
+        /// <param name="defaultVal">默认值</param>
+        /// <returns>字符串本身或默认值</returns>
+        public static string? ToDefault(this string? str, [NotNull] string defaultVal) => str.IsNullOrEmpty() ? defaultVal : str;
+
         /// <summary>
         /// 使用全角半角的逗号句号和分号分割字符串。
         /// </summary>