refactor(tenpayv2): 优化代码

src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/Internal/Newtonsoft.Json/Object/FlattenNArrayObjectConverterBase.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections;
+using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 using System.Text.RegularExpressions;
@@ -8,6 +9,8 @@ using Newtonsoft.Json.Serialization;
 
 namespace Newtonsoft.Json.Converters
 {
+    using SKIT.FlurlHttpClient.Wechat.TenpayV2.Utilities;
+
     internal static class FlattenNArrayObjectConverterBase
     {
         public const string PROPERTY_WILDCARD_NARRAY_ELEMENT = "$n";
@@ -17,7 +20,7 @@ namespace Newtonsoft.Json.Converters
     internal abstract partial class FlattenNArrayObjectConverterBase<T> : JsonConverter<T?>
         where T : class, new()
     {
-        private sealed class InnerTypedJsonProperty
+        private sealed class InnerTypedJsonPropertyInfo
         {
             public string PropertyName { get; }
 
@@ -27,14 +30,17 @@ namespace Newtonsoft.Json.Converters
 
             public bool PropertyIsNArray { get; }
 
-            public JsonConverter? JsonConverter { get; }
+            public JsonConverter? JsonConverterOnRead { get; }
 
-            public InnerTypedJsonProperty(string propertyName, PropertyInfo propertyInfo, bool propertyIsNArray, JsonConverter? jsonConverter)
+            public JsonConverter? JsonConverterOnWrite { get; }
+
+            public InnerTypedJsonPropertyInfo(string propertyName, PropertyInfo propertyInfo, bool propertyIsNArray, JsonConverter? jsonReadConverter, JsonConverter? jsonWriteConverter)
             {
                 PropertyName = propertyName;
                 PropertyInfo = propertyInfo;
                 PropertyIsNArray = propertyIsNArray;
-                JsonConverter = jsonConverter;
+                JsonConverterOnRead = jsonReadConverter;
+                JsonConverterOnWrite = jsonWriteConverter;
             }
         }
 
@@ -61,44 +67,47 @@ namespace Newtonsoft.Json.Converters
             }
             else if (reader.TokenType == JsonToken.StartObject)
             {
-                InnerTypedJsonProperty[] typedJsonProperties = GetTypedJsonProperties(objectType);
+                InnerTypedJsonPropertyInfo[] typedJsonProperties = GetTypedJsonProperties(objectType);
                 if (typedJsonProperties.Count(p => p.PropertyIsNArray) != 1)
                     throw new JsonSerializationException("The number of `$n` properties must be only one.");
 
                 JObject jObject = JObject.Load(reader);
                 T tObject = new T();
 
-                foreach (JProperty jKey in jObject.Properties())
+                foreach (JProperty jProperty in jObject.Properties())
                 {
-                    InnerTypedJsonProperty? typedJsonProperty = typedJsonProperties.SingleOrDefault(e => e.PropertyName == jKey.Name);
-                    if (typedJsonProperty != null)
+                    InnerTypedJsonPropertyInfo? typedJsonPropertyInfo = typedJsonProperties.SingleOrDefault(e => e.PropertyName == jProperty.Name);
+                    if (typedJsonPropertyInfo != null)
                     {
-                        // 处理普通属性
-                        JsonSerializer tmpSerializer = serializer;
-                        if (typedJsonProperty.JsonConverter != null)
+                        JsonSerializer tmpSerializer = GetClonedJsonSerializer(serializer, typedJsonPropertyInfo.JsonConverterOnRead);
+                        object? propertyValue = jProperty.Value?.ToObject(typedJsonPropertyInfo.PropertyType, tmpSerializer);
+                        typedJsonPropertyInfo.PropertyInfo.SetValue(tObject, propertyValue);
+                    }
+                    else if (TryMatchNArrayIndex(jProperty.Name, out int index))
                     {
-                            tmpSerializer = JsonSerializer.CreateDefault(serializer.ExtractSerializerSettings());
-                            tmpSerializer.Converters.Add(typedJsonProperty.JsonConverter);
+                        typedJsonPropertyInfo = typedJsonProperties.Single(e => e.PropertyIsNArray);
+
+                        Array? propertyValue = typedJsonPropertyInfo.PropertyInfo.GetValue(tObject) as Array;
+                        ReflectionUtility.CreateOrExpandArray(ref propertyValue, typedJsonPropertyInfo.PropertyType.GetElementType()!, index + 1);
+                        ReflectionUtility.CreateOrExpandArrayElement(propertyValue!, index, (object element) =>
+                        {
+                            InnerTypedJsonPropertyInfo? insider = GetTypedJsonProperties(element.GetType())
+                                .SingleOrDefault(p => string.Equals(p.PropertyName.Replace(PROPERTY_WILDCARD_NARRAY_ELEMENT, index.ToString()), jProperty.Name));
+                            if (insider != null)
+                            {
+                                JsonSerializer tmpSerializer = GetClonedJsonSerializer(serializer, insider.JsonConverterOnRead);
+                                object? elementPropertyValue = jProperty.Value?.ToObject(insider.PropertyType, tmpSerializer);
+                                insider.PropertyInfo.SetValue(element, elementPropertyValue);
                             }
 
-                        object? value = jObject[typedJsonProperty.PropertyName]?.ToObject(typedJsonProperty.PropertyType, tmpSerializer);
-                        typedJsonProperty.PropertyInfo.SetValue(tObject, value);
-                    }
-                    else if (TryMatchNArrayIndex(jKey.Name, out int index))
-                    {
-                        // 处理 $n 属性
-                        InnerTypedJsonProperty narrayJsonProperty = typedJsonProperties.Single(e => e.PropertyIsNArray);
-                        object? value = narrayJsonProperty.PropertyInfo.GetValue(tObject);
+                            return element;
+                        });
 
-                        JsonSerializer tmpSerializer = serializer;
-
-                        Array array = CreateOrExpandNArray(value, narrayJsonProperty.PropertyType.GetElementType()!, index + 1);
-                        object? element = CreateOrUpdateNArrayElement(array, index, jKey.Name, jKey.Value, tmpSerializer);
-                        narrayJsonProperty.PropertyInfo.SetValue(tObject, array);
+                        typedJsonPropertyInfo.PropertyInfo.SetValue(tObject, propertyValue);
                     }
                     else if (serializer.MissingMemberHandling == MissingMemberHandling.Error)
                     {
-                        throw new JsonSerializationException($"Could not find member `{jKey.Name}` on object of type `{objectType.Name}`.");
+                        throw new JsonSerializationException($"Could not find member `{jProperty.Name}` on object of type `{objectType.Name}`.");
                     }
                 }
 
@@ -119,29 +128,28 @@ namespace Newtonsoft.Json.Converters
             writer.WriteStartObject();
 
             JsonObjectContract jsonContract = (JsonObjectContract)serializer.ContractResolver.ResolveContract(value.GetType());
-            foreach (JsonProperty jsonProperty in jsonContract.Properties)
+            foreach (JsonProperty jsonContractProperty in jsonContract.Properties)
             {
-                if (jsonProperty.Ignored)
+                if (jsonContractProperty.Ignored)
                     continue;
-                if (!(jsonProperty.ShouldSerialize == null || jsonProperty.ShouldSerialize(value)))
+                if (!(jsonContractProperty.ShouldSerialize == null || jsonContractProperty.ShouldSerialize(value)))
                     continue;
 
-                string propertyKey = jsonProperty.PropertyName;
-                object? propertyValue = jsonProperty.ValueProvider.GetValue(value);
+                string propertyName = jsonContractProperty.PropertyName;
+                object? propertyValue = jsonContractProperty.ValueProvider?.GetValue(value);
                 if (propertyValue is null)
                 {
                     if (serializer.NullValueHandling == NullValueHandling.Ignore)
                         continue;
                 }
 
-                if (!PROPERTY_NAME_NARRAY.Equals(propertyKey))
+                if (!PROPERTY_NAME_NARRAY.Equals(propertyName))
                 {
-                    // 处理普通属性
-                    writer.WritePropertyName(propertyKey);
+                    writer.WritePropertyName(propertyName);
 
-                    if (jsonProperty.Converter != null && jsonProperty.Converter.CanWrite)
+                    if (jsonContractProperty.Converter != null && jsonContractProperty.Converter.CanWrite)
                     {
-                        jsonProperty.Converter.WriteJson(writer, propertyValue, serializer);
+                        jsonContractProperty.Converter.WriteJson(writer, propertyValue, serializer);
                     }
                     else
                     {
@@ -150,7 +158,6 @@ namespace Newtonsoft.Json.Converters
                 }
                 else
                 {
-                    // 处理 $n 属性
                     if (propertyValue is null)
                         continue;
 
@@ -161,10 +168,10 @@ namespace Newtonsoft.Json.Converters
                         if (jSubToken == null)
                             continue;
 
-                        foreach (JProperty jSubKey in jSubToken)
+                        foreach (JProperty jSubProperty in jSubToken)
                         {
-                            writer.WritePropertyName(jSubKey.Name.Replace(PROPERTY_WILDCARD_NARRAY_ELEMENT, i.ToString()));
-                            serializer.Serialize(writer, jSubKey.Value);
+                            writer.WritePropertyName(jSubProperty.Name.Replace(PROPERTY_WILDCARD_NARRAY_ELEMENT, i.ToString()));
+                            serializer.Serialize(writer, jSubProperty.Value);
                         }
                     }
                 }
@@ -173,16 +180,16 @@ namespace Newtonsoft.Json.Converters
             writer.WriteEndObject();
         }
 
-        private static InnerTypedJsonProperty[] GetTypedJsonProperties(Type type)
+        private static InnerTypedJsonPropertyInfo[] GetTypedJsonProperties(Type type)
         {
             if (type == null) throw new ArgumentNullException(nameof(type));
 
-            string mappedTypeKey = type.AssemblyQualifiedName ?? type.GetHashCode().ToString();
-            InnerTypedJsonProperty[]? typedJsonProperties = (InnerTypedJsonProperty[]?)_mappedTypeJsonProperties[mappedTypeKey];
+            string mappedKey = type.AssemblyQualifiedName ?? type.GetHashCode().ToString();
+            InnerTypedJsonPropertyInfo[]? mappedValue = (InnerTypedJsonPropertyInfo[]?)_mappedTypeJsonProperties[mappedKey];
 
-            if (typedJsonProperties == null)
+            if (mappedValue == null)
             {
-                typedJsonProperties = type.GetProperties(BindingFlags.Instance | BindingFlags.Public)
+                mappedValue = type.GetProperties(BindingFlags.Instance | BindingFlags.Public)
                     .Where(p =>
                     {
                         if (p.CanWrite || p.GetCustomAttributes<JsonPropertyAttribute>(inherit: true).Any())
@@ -195,24 +202,39 @@ namespace Newtonsoft.Json.Converters
                     .Select(p =>
                     {
                         string name = p.GetCustomAttribute<JsonPropertyAttribute>(inherit: true)?.PropertyName ?? p.Name;
-                        JsonConverter? converter = p.GetCustomAttributes<JsonConverterAttribute>(inherit: true)
+                        IEnumerable<JsonConverter> converters = p.GetCustomAttributes<JsonConverterAttribute>(inherit: true)
                             .OrderByDescending(attr => attr.IsDefaultAttribute())
-                            .Select(attr => (JsonConverter)Activator.CreateInstance(attr.ConverterType, attr.ConverterParameters)!)
-                            .FirstOrDefault();
-                        return new InnerTypedJsonProperty
+                            .Select(attr => (JsonConverter)Activator.CreateInstance(attr.ConverterType, attr.ConverterParameters)!);
+                        JsonConverter? readConverter = converters.FirstOrDefault(c => c.CanRead);
+                        JsonConverter? writeConverter = converters.FirstOrDefault(c => c.CanWrite);
+                        return new InnerTypedJsonPropertyInfo
                         (
                             propertyName: name,
                             propertyInfo: p,
                             propertyIsNArray: PROPERTY_NAME_NARRAY.Equals(name) && p.PropertyType.IsArray && p.PropertyType.GetElementType()!.IsClass,
-                            jsonConverter: converter
+                            jsonReadConverter: readConverter,
+                            jsonWriteConverter: writeConverter
                         );
                     })
                     .OrderBy(e => e.PropertyInfo.GetCustomAttribute<JsonPropertyAttribute>(inherit: true)?.Order)
                     .ToArray();
-                _mappedTypeJsonProperties[mappedTypeKey] = typedJsonProperties;
+                _mappedTypeJsonProperties[mappedKey] = mappedValue;
             }
 
-            return typedJsonProperties;
+            return mappedValue;
+        }
+
+        private static JsonSerializer GetClonedJsonSerializer(JsonSerializer serializer, JsonConverter? converter)
+        {
+            JsonSerializer serializerCopy = serializer;
+
+            if (converter != null)
+            {
+                serializerCopy = JsonSerializer.CreateDefault(serializer.ExtractSerializerSettings());
+                serializerCopy.Converters.Add(converter);
+            }
+
+            return serializerCopy;
         }
 
         private static bool TryMatchNArrayIndex(string key, out int index)
@@ -228,70 +250,5 @@ namespace Newtonsoft.Json.Converters
             index = -1;
             return false;
         }
-
-        private static Array CreateOrExpandNArray(object? array, Type elementType, int capacity)
-        {
-            if (elementType == null) throw new ArgumentNullException(nameof(elementType));
-            if (capacity <= 0) throw new ArgumentOutOfRangeException(nameof(capacity));
-
-            if (array == null)
-            {
-                return Array.CreateInstance(elementType, capacity);
-            }
-
-            Array src = (Array)array;
-            if (src.Length < capacity)
-            {
-                Array dst = Array.CreateInstance(elementType, capacity);
-                Array.Copy(src, dst, src.Length);
-                return dst;
-            }
-
-            return src;
-        }
-
-        private static object CreateOrUpdateNArrayElement(Array array, int index, string jKey, JToken? jValue, JsonSerializer serializer)
-        {
-            if (array == null) throw new ArgumentNullException(nameof(array));
-            if (index < 0) throw new ArgumentOutOfRangeException(nameof(index));
-
-            object? element = array.GetValue(index);
-            Type elementType = array.GetType().GetElementType()!;
-
-            if (element == null)
-            {
-
-                if (elementType.IsAbstract || elementType.IsInterface)
-                {
-                    throw new NotSupportedException();
-                }
-                else if (elementType.IsArray)
-                {
-                    element = Array.CreateInstance(elementType, 0);
-                }
-                else
-                {
-                    element = Activator.CreateInstance(elementType);
-                }
-
-                array.SetValue(element, index);
-            }
-
-            InnerTypedJsonProperty? typedJsonProperty = GetTypedJsonProperties(elementType)
-                .SingleOrDefault(p => string.Equals(p.PropertyName.Replace(PROPERTY_WILDCARD_NARRAY_ELEMENT, index.ToString()), jKey));
-            if (typedJsonProperty != null)
-            {
-                if (typedJsonProperty.JsonConverter != null)
-                {
-                    serializer = JsonSerializer.CreateDefault(serializer.ExtractSerializerSettings());
-                    serializer.Converters.Add(typedJsonProperty.JsonConverter);
-                }
-
-                object? obj = jValue?.ToObject(typedJsonProperty.PropertyType, serializer);
-                typedJsonProperty.PropertyInfo.SetValue(element, obj);
-            }
-
-            return element!;
-        }
     }
 }

src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/Internal/System.Text.Json/Object/FlattenNArrayObjectConverterBase.cs

@@ -8,6 +8,8 @@ using System.Text.RegularExpressions;
 
 namespace System.Text.Json.Converters
 {
+    using SKIT.FlurlHttpClient.Wechat.TenpayV2.Utilities;
+
     internal static class FlattenNArrayObjectConverterBase
     {
         public const string PROPERTY_WILDCARD_NARRAY_ELEMENT = Newtonsoft.Json.Converters.FlattenNArrayObjectConverterBase.PROPERTY_WILDCARD_NARRAY_ELEMENT;
@@ -17,7 +19,7 @@ namespace System.Text.Json.Converters
     internal class FlattenNArrayObjectConverterBase<T> : JsonConverter<T?>
         where T : class, new()
     {
-        private sealed class InnerTypedJsonProperty
+        private sealed class InnerTypedJsonPropertyInfo
         {
             public string PropertyName { get; }
 
@@ -29,7 +31,7 @@ namespace System.Text.Json.Converters
 
             public JsonConverter? JsonConverter { get; }
 
-            public InnerTypedJsonProperty(string propertyName, PropertyInfo propertyInfo, bool propertyIsNArray, JsonConverter? jsonConverter)
+            public InnerTypedJsonPropertyInfo(string propertyName, PropertyInfo propertyInfo, bool propertyIsNArray, JsonConverter? jsonConverter)
             {
                 PropertyName = propertyName;
                 PropertyInfo = propertyInfo;
@@ -51,40 +53,43 @@ namespace System.Text.Json.Converters
             }
             else if (reader.TokenType == JsonTokenType.StartObject)
             {
-                InnerTypedJsonProperty[] typedJsonProperties = GetTypedJsonProperties(typeToConvert);
+                InnerTypedJsonPropertyInfo[] typedJsonProperties = GetTypedJsonProperties(typeToConvert);
                 if (typedJsonProperties.Count(p => p.PropertyIsNArray) != 1)
                     throw new JsonException("The number of `$n` properties must be only one.");
 
                 JsonElement jElement = JsonDocument.ParseValue(ref reader).RootElement.Clone();
                 T tObject = new T();
 
-                foreach (JsonProperty jKey in jElement.EnumerateObject())
+                foreach (JsonProperty jProperty in jElement.EnumerateObject())
                 {
-                    InnerTypedJsonProperty? typedJsonProperty = typedJsonProperties.SingleOrDefault(e => e.PropertyName == jKey.Name);
-                    if (typedJsonProperty != null)
+                    InnerTypedJsonPropertyInfo? typedJsonPropertyInfo = typedJsonProperties.SingleOrDefault(e => e.PropertyName == jProperty.Name);
+                    if (typedJsonPropertyInfo != null)
                     {
-                        // 处理普通属性
-                        JsonSerializerOptions tmpOptions = options;
-                        if (typedJsonProperty.JsonConverter != null)
+                        JsonSerializerOptions tmpOptions = GetClonedJsonSerializerOptions(options, typedJsonPropertyInfo.JsonConverter);
+                        object? propertyValue = jProperty.Value.Deserialize(typedJsonPropertyInfo.PropertyType, tmpOptions);
+                        typedJsonPropertyInfo.PropertyInfo.SetValue(tObject, propertyValue);
+                    }
+                    else if (TryMatchNArrayIndex(jProperty.Name, out int index))
                     {
-                            tmpOptions = new JsonSerializerOptions(options);
-                            tmpOptions.Converters.Add(typedJsonProperty.JsonConverter);
+                        typedJsonPropertyInfo = typedJsonProperties.Single(e => e.PropertyIsNArray);
+
+                        Array? propertyValue = typedJsonPropertyInfo.PropertyInfo.GetValue(tObject) as Array;
+                        ReflectionUtility.CreateOrExpandArray(ref propertyValue, typedJsonPropertyInfo.PropertyType.GetElementType()!, index + 1);
+                        ReflectionUtility.CreateOrExpandArrayElement(propertyValue!, index, (object element) =>
+                        {
+                            InnerTypedJsonPropertyInfo? insider = GetTypedJsonProperties(element.GetType())
+                                .SingleOrDefault(p => string.Equals(p.PropertyName.Replace(PROPERTY_WILDCARD_NARRAY_ELEMENT, index.ToString()), jProperty.Name));
+                            if (insider != null)
+                            {
+                                JsonSerializerOptions tmpOptions = GetClonedJsonSerializerOptions(options, insider.JsonConverter);
+                                object? elementPropertyValue = JsonSerializer.Deserialize(jProperty.Value, insider.PropertyType, tmpOptions)!;
+                                insider.PropertyInfo.SetValue(element, elementPropertyValue);
                             }
 
-                        object? value = JsonSerializer.Deserialize(jKey.Value, typedJsonProperty.PropertyType, tmpOptions);
-                        typedJsonProperty.PropertyInfo.SetValue(tObject, value);
-                    }
-                    else if (TryMatchNArrayIndex(jKey.Name, out int index))
-                    {
-                        // 处理 $n 属性
-                        InnerTypedJsonProperty narrayJsonProperty = typedJsonProperties.Single(e => e.PropertyIsNArray);
-                        object? value = narrayJsonProperty.PropertyInfo.GetValue(tObject);
+                            return element;
+                        });
 
-                        JsonSerializerOptions tmpOptions = options;
-
-                        Array array = CreateOrExpandNArray(value, narrayJsonProperty.PropertyType.GetElementType()!, index + 1);
-                        object? element = CreateOrUpdateNArrayElement(array, index, jKey.Name, jKey.Value, tmpOptions);
-                        narrayJsonProperty.PropertyInfo.SetValue(tObject, array);
+                        typedJsonPropertyInfo.PropertyInfo.SetValue(tObject, propertyValue);
                     }
                 }
                 return tObject;
@@ -103,48 +108,39 @@ namespace System.Text.Json.Converters
 
             writer.WriteStartObject();
 
-            foreach (InnerTypedJsonProperty typedJsonProperty in GetTypedJsonProperties(value.GetType()))
+            foreach (InnerTypedJsonPropertyInfo typedJsonProperty in GetTypedJsonProperties(value.GetType()))
             {
                 if (!typedJsonProperty.PropertyIsNArray)
                 {
-                    // 处理普通属性
-                    string propertyKey = typedJsonProperty.PropertyName;
+                    string propertyName = typedJsonProperty.PropertyName;
                     object? propertyValue = typedJsonProperty.PropertyInfo.GetValue(value);
                     if (propertyValue is null)
                     {
                         if (options.DefaultIgnoreCondition == JsonIgnoreCondition.Always || options.DefaultIgnoreCondition == JsonIgnoreCondition.WhenWritingNull)
                             continue;
                     }
-                    else if (propertyValue == (propertyValue.GetType().IsValueType ? Activator.CreateInstance(propertyValue.GetType()) : null))
+                    if (propertyValue == (typedJsonProperty.PropertyType.IsValueType ? Activator.CreateInstance(typedJsonProperty.PropertyType) : null))
                     {
                         if (options.DefaultIgnoreCondition == JsonIgnoreCondition.Always || options.DefaultIgnoreCondition == JsonIgnoreCondition.WhenWritingDefault)
                             continue;
                     }
 
-                    JsonSerializerOptions tmpOptions = options;
-                    JsonConverter? tmpConverter = typedJsonProperty.JsonConverter;
-                    if (tmpConverter != null)
-                    {
-                        tmpOptions = new JsonSerializerOptions(options);
-                        tmpOptions.Converters.Add(tmpConverter);
-                    }
-
-                    if (tmpConverter != null && CheckTypeIsSubclassOf(tmpConverter.GetType(), typeof(TextualObjectInJsonFormatConverterBase<>)))
+                    JsonSerializerOptions tmpOptions = GetClonedJsonSerializerOptions(options, typedJsonProperty.JsonConverter);
+                    if (typedJsonProperty.JsonConverter != null && ReflectionUtility.CheckTypeIsSubclassOf(typedJsonProperty.JsonConverter.GetType(), typeof(TextualObjectInJsonFormatConverterBase<>)))
                     {
                         // TODO: 优化
-                        tmpOptions.Converters.Remove(tmpConverter);
-                        writer.WritePropertyName(propertyKey);
+                        tmpOptions.Converters.Remove(typedJsonProperty.JsonConverter);
+                        writer.WritePropertyName(propertyName);
                         writer.WriteStringValue(JsonSerializer.Serialize(propertyValue, tmpOptions));
                     }
                     else
                     {
-                        writer.WritePropertyName(propertyKey);
+                        writer.WritePropertyName(propertyName);
                         writer.WriteRawValue(JsonSerializer.Serialize(propertyValue, tmpOptions), skipInputValidation: true);
                     }
                 }
                 else
                 {
-                    // 处理 $n 属性
                     Array? array = (Array?)typedJsonProperty.PropertyInfo.GetValue(value);
                     if (array is null)
                         continue;
@@ -155,19 +151,12 @@ namespace System.Text.Json.Converters
                         if (element is null)
                             continue;
 
-                        JsonSerializerOptions tmpOptions = options;
-                        JsonConverter? tmpConverter = GetTypedJsonConverter(element.GetType());
-                        if (tmpConverter != null)
-                        {
-                            tmpOptions = new JsonSerializerOptions(options);
-                            tmpOptions.Converters.Add(tmpConverter);
-                        }
-
+                        JsonSerializerOptions tmpOptions = GetClonedJsonSerializerOptions(options, GetTypedJsonConverter(element.GetType()));
                         JsonObject jSubObject = JsonSerializer.SerializeToNode(element, tmpOptions)!.AsObject();
-                        foreach (KeyValuePair<string, JsonNode?> jSubKey in jSubObject)
+                        foreach (KeyValuePair<string, JsonNode?> jSubProperty in jSubObject)
                         {
-                            writer.WritePropertyName(jSubKey.Key.Replace(PROPERTY_WILDCARD_NARRAY_ELEMENT, i.ToString()));
-                            writer.WriteRawValue(jSubKey.Value?.ToJsonString(tmpOptions)!, skipInputValidation: true);
+                            writer.WritePropertyName(jSubProperty.Key.Replace(PROPERTY_WILDCARD_NARRAY_ELEMENT, i.ToString()));
+                            writer.WriteRawValue(jSubProperty.Value?.ToJsonString(tmpOptions)!, skipInputValidation: true);
                         }
                     }
                 }
@@ -176,6 +165,44 @@ namespace System.Text.Json.Converters
             writer.WriteEndObject();
         }
 
+        private static InnerTypedJsonPropertyInfo[] GetTypedJsonProperties(Type type)
+        {
+            if (type == null) throw new ArgumentNullException(nameof(type));
+
+            string mappedKey = type.AssemblyQualifiedName ?? type.GetHashCode().ToString();
+            InnerTypedJsonPropertyInfo[]? mappedValue = (InnerTypedJsonPropertyInfo[]?)_mappedTypeJsonProperties[mappedKey];
+
+            if (mappedValue == null)
+            {
+                mappedValue = type.GetProperties(BindingFlags.Instance | BindingFlags.Public)
+                    .Where(p =>
+                    {
+                        if (p.CanWrite || p.GetCustomAttributes<JsonIncludeAttribute>(inherit: true).Any())
+                        {
+                            return !p.GetCustomAttributes<JsonIgnoreAttribute>(inherit: false).Any();
+                        }
+
+                        return false;
+                    })
+                    .Select(p =>
+                    {
+                        string name = p.GetCustomAttribute<JsonPropertyNameAttribute>(inherit: true)?.Name ?? p.Name;
+                        return new InnerTypedJsonPropertyInfo
+                        (
+                            propertyName: name,
+                            propertyInfo: p,
+                            propertyIsNArray: PROPERTY_NAME_NARRAY.Equals(name) && p.PropertyType.IsArray && p.PropertyType.GetElementType()!.IsClass,
+                            jsonConverter: GetTypedJsonConverter(p)
+                        );
+                    })
+                    .OrderBy(e => e.PropertyInfo.GetCustomAttribute<JsonPropertyOrderAttribute>(inherit: true)?.Order)
+                    .ToArray();
+                _mappedTypeJsonProperties[mappedKey] = mappedValue;
+            }
+
+            return mappedValue;
+        }
+
         private static JsonConverter? GetTypedJsonConverter(MemberInfo? memberInfo)
         {
             if (memberInfo == null)
@@ -206,67 +233,17 @@ namespace System.Text.Json.Converters
                 .FirstOrDefault(converter => converter != null);
         }
 
-        private static InnerTypedJsonProperty[] GetTypedJsonProperties(Type type)
+        private static JsonSerializerOptions GetClonedJsonSerializerOptions(JsonSerializerOptions options, JsonConverter? converter)
         {
-            if (type == null) throw new ArgumentNullException(nameof(type));
+            JsonSerializerOptions optionsCopy = options;
 
-            string mappedTypeKey = type.AssemblyQualifiedName ?? type.GetHashCode().ToString();
-            InnerTypedJsonProperty[]? typedJsonProperties = (InnerTypedJsonProperty[]?)_mappedTypeJsonProperties[mappedTypeKey];
-
-            if (typedJsonProperties == null)
+            if (converter != null)
             {
-                typedJsonProperties = type.GetProperties(BindingFlags.Instance | BindingFlags.Public)
-                    .Where(p =>
-                    {
-                        if (p.CanWrite || p.GetCustomAttributes<JsonIncludeAttribute>(inherit: true).Any())
-                        {
-                            return !p.GetCustomAttributes<JsonIgnoreAttribute>(inherit: false).Any();
+                optionsCopy = new JsonSerializerOptions(options);
+                optionsCopy.Converters.Add(converter);
             }
 
-                        return false;
-                    })
-                    .Select(p =>
-                    {
-                        string name = p.GetCustomAttribute<JsonPropertyNameAttribute>(inherit: true)?.Name ?? p.Name;
-                        if (name.Equals("modify_time_$n"))
-                        {
-                            var cs = p.GetCustomAttributes<JsonConverterAttribute>(inherit: true);
-                        }
-
-                        return new InnerTypedJsonProperty
-                        (
-                            propertyName: name,
-                            propertyInfo: p,
-                            propertyIsNArray: PROPERTY_NAME_NARRAY.Equals(name) && p.PropertyType.IsArray && p.PropertyType.GetElementType()!.IsClass,
-                            jsonConverter: GetTypedJsonConverter(p)
-                        );
-                    })
-                    .OrderBy(e => e.PropertyInfo.GetCustomAttribute<JsonPropertyOrderAttribute>(inherit: true)?.Order)
-                    .ToArray();
-                _mappedTypeJsonProperties[mappedTypeKey] = typedJsonProperties;
-            }
-
-            return typedJsonProperties;
-        }
-
-        private static bool CheckTypeIsSubclassOf(Type type, Type generic)
-        {
-            bool IsTheRawGenericType(Type test)
-                => generic == (test.IsGenericType ? test.GetGenericTypeDefinition() : test);
-
-            bool isTheRawGenericType = type.GetInterfaces().Any(IsTheRawGenericType);
-            if (isTheRawGenericType) 
-                return true;
-
-            Type? tmp = type;
-            while (tmp != null && tmp != typeof(object))
-            {
-                isTheRawGenericType = IsTheRawGenericType(tmp);
-                if (isTheRawGenericType) return true;
-                tmp = tmp.BaseType;
-            }
-
-            return false;
+            return optionsCopy;
         }
 
         private static bool TryMatchNArrayIndex(string key, out int index)
@@ -282,70 +259,5 @@ namespace System.Text.Json.Converters
             index = -1;
             return false;
         }
-
-        private static Array CreateOrExpandNArray(object? array, Type elementType, int capacity)
-        {
-            if (elementType == null) throw new ArgumentNullException(nameof(elementType));
-            if (capacity <= 0) throw new ArgumentOutOfRangeException(nameof(capacity));
-
-            if (array == null)
-            {
-                return Array.CreateInstance(elementType, capacity);
-            }
-
-            Array src = (Array)array;
-            if (src.Length < capacity)
-            {
-                Array dst = Array.CreateInstance(elementType, capacity);
-                Array.Copy(src, dst, src.Length);
-                return dst;
-            }
-
-            return src;
-        }
-
-        private static object CreateOrUpdateNArrayElement(Array array, int index, string jKey, JsonElement jValue, JsonSerializerOptions serializerOptions)
-        {
-            if (array == null) throw new ArgumentNullException(nameof(array));
-            if (index < 0) throw new ArgumentOutOfRangeException(nameof(index));
-
-            object? element = array.GetValue(index);
-            Type elementType = array.GetType().GetElementType()!;
-
-            if (element == null)
-            {
-
-                if (elementType.IsAbstract || elementType.IsInterface)
-                {
-                    throw new NotSupportedException();
-                }
-                else if (elementType.IsArray)
-                {
-                    element = Array.CreateInstance(elementType, 0);
-                }
-                else
-                {
-                    element = Activator.CreateInstance(elementType);
-                }
-
-                array.SetValue(element, index);
-            }
-
-            InnerTypedJsonProperty? typedJsonProperty = GetTypedJsonProperties(elementType)
-                .SingleOrDefault(p => string.Equals(p.PropertyName.Replace(PROPERTY_WILDCARD_NARRAY_ELEMENT, index.ToString()), jKey));
-            if (typedJsonProperty != null)
-            {
-                if (typedJsonProperty.JsonConverter != null)
-                {
-                    serializerOptions = new JsonSerializerOptions(serializerOptions);
-                    serializerOptions.Converters.Add(typedJsonProperty.JsonConverter);
-                }
-
-                object? obj = JsonSerializer.Deserialize(jValue, typedJsonProperty.PropertyType, serializerOptions)!;
-                typedJsonProperty.PropertyInfo.SetValue(element, obj);
-            }
-
-            return element!;
-        }
     }
 }

src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/Internal/ReflectionUtility.cs

@@ -0,0 +1,74 @@
+using System;
+using System.Linq;
+
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV2.Utilities
+{
+    internal static class ReflectionUtility
+    {
+        public static void CreateOrExpandArray(ref Array? array, Type elementType, int capacity)
+        {
+            if (elementType == null) throw new ArgumentNullException(nameof(elementType));
+            if (capacity <= 0) throw new ArgumentOutOfRangeException(nameof(capacity));
+
+            if (array == null)
+            {
+                array = Array.CreateInstance(elementType, capacity);
+            }
+            else if (array.Length < capacity)
+            {
+                Array tmpArray = Array.CreateInstance(elementType, capacity);
+                Array.Copy(array, tmpArray, array.Length);
+                array = tmpArray;
+            }
+        }
+
+        public static void CreateOrExpandArrayElement(Array array, int index, Func<object, object>? updateFactory)
+        {
+            if (array == null) throw new ArgumentNullException(nameof(array));
+            if (index < 0 || index >= array.Length) throw new ArgumentOutOfRangeException(nameof(index));
+            if (updateFactory == null) throw new ArgumentNullException(nameof(updateFactory));
+
+            object? element = array.GetValue(index);
+            if (element is null)
+            {
+                Type elementType = array.GetType().GetElementType()!;
+
+                if (elementType.IsAbstract || elementType.IsInterface)
+                {
+                    throw new NotSupportedException();
+                }
+                else if (elementType.IsArray)
+                {
+                    element = Array.CreateInstance(elementType, 0);
+                }
+                else
+                {
+                    element = Activator.CreateInstance(elementType);
+                }
+            }
+
+            element = updateFactory(element);
+            array.SetValue(element, index);
+        }
+
+        public static bool CheckTypeIsSubclassOf(Type childType, Type baseType)
+        {
+            bool IsTheRawGenericType(Type type)
+                => baseType == (type.IsGenericType ? type.GetGenericTypeDefinition() : type);
+
+            bool isTheRawGenericType = childType.GetInterfaces().Any(IsTheRawGenericType);
+            if (isTheRawGenericType)
+                return true;
+
+            Type? t = childType;
+            while (t != null && t != typeof(object))
+            {
+                isTheRawGenericType = IsTheRawGenericType(t);
+                if (isTheRawGenericType) return true;
+                t = t.BaseType;
+            }
+
+            return false;
+        }
+    }
+}

test/SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests/SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests.csproj

@@ -10,6 +10,8 @@
 
     <ItemGroup>
         <None Remove=".gitignore" />
+        <None Remove="appsettings - 复制.json" />
+        <None Remove="appsettings.local.json" />
         <Content Include="appsettings.json">
 			<CopyToOutputDirectory>Never</CopyToOutputDirectory>
 			<CopyToPublishDirectory>Never</CopyToPublishDirectory>

test/SKIT.FlurlHttpClient.Wechat.TenpayV2.UnitTests/appsettings.json

@@ -1,9 +1,9 @@
 {
     "TestConfig": {
-        "AppId": "请在此填写用于测试的微信 AppId",
         "MerchantId": "请在此填写用于测试的微信商户号",
         "MerchantSecret": "请在此填写用于测试的微信商户 API 密钥",
         "MerchantCertificateBase64String": "请在此填写用于测试的微信商户证书内容的 Base64 字节数组",
+        "AppId": "请在此填写用于测试的微信 AppId",
         "OpenId": "请在此填写用于测试的微信用户唯一标识"
     },
     "ProjectSourceDirectory": "请输入当前 SDK 项目所在的目录完整路径，如 C:\\Project\\src\\SKIT.FlurlHttpClient.Wechat.TenpayV2\\",