87 lines
2.7 KiB
C#
87 lines
2.7 KiB
C#
#region copyright
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//------------------------------------------------------------------------------
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// 此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
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// 此代码版权（除特别声明外的代码）归作者本人Diego所有
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// 源代码使用协议遵循本仓库的开源协议及附加协议
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// Gitee源代码仓库：https://gitee.com/diego2098/ThingsGateway
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// Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
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// 使用文档：https://diego2098.gitee.io/thingsgateway-docs/
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// QQ群：605534569
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//------------------------------------------------------------------------------
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#endregion
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#if NET6_0_OR_GREATER
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using System.Text.Json.Serialization;
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using System.Text.Json;
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#else
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using Newtonsoft.Json;
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using Newtonsoft.Json.Converters;
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#endif
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using System.Text;
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namespace ThingsGateway.Foundation.Core;
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#if NET6_0_OR_GREATER
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/// <inheritdoc/>
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public class EncodingConverter : JsonConverter<Encoding>
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{
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/// <inheritdoc/>
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public override Encoding Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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{
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// 从 JSON 中读取编码名称，并创建对应的 Encoding 对象
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string encodingName = reader.GetString();
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return Encoding.GetEncoding(encodingName);
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}
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/// <inheritdoc/>
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public override void Write(Utf8JsonWriter writer, Encoding value, JsonSerializerOptions options)
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{
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// 将 Encoding 对象的编码名称作为字符串写入 JSON
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writer.WriteStringValue(value.WebName);
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}
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}
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#else
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/// <inheritdoc/>
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public class EncodingConverter : CustomCreationConverter<Encoding>
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{
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/// <inheritdoc/>
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public override Encoding Create(Type objectType)
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{
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// 在此处创建一个默认的 Encoding 对象
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return Encoding.Default;
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}
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/// <inheritdoc/>
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public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
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{
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if (reader.TokenType == JsonToken.String)
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{
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// 从 JSON 字符串中读取编码名称，并创建相应的 Encoding 对象
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string encodingName = (string)reader.Value;
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return Encoding.GetEncoding(encodingName);
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}
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return base.ReadJson(reader, objectType, existingValue, serializer);
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}
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/// <inheritdoc/>
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public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
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{
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if (value is Encoding encoding)
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{
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// 将 Encoding 对象的编码名称作为字符串写入 JSON
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writer.WriteValue(encoding.WebName);
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}
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else
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{
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base.WriteJson(writer, value, serializer);
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}
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}
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}
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#endif |