82 lines
2.7 KiB
C#
82 lines
2.7 KiB
C#
using IRaCIS.Core.Domain.Share;
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using Microsoft.AspNetCore.Http;
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using Newtonsoft.Json;
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using Newtonsoft.Json.Converters;
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using StackExchange.Redis;
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using System;
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using System.Globalization;
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namespace IRaCIS.Core.API
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{
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/// <summary>
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/// 序列化，反序列化的时候，处理时间 时区转换
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/// </summary>
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public class JSONTimeZoneConverter : DateTimeConverterBase
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{
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private readonly IHttpContextAccessor _httpContextAccessor;
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private readonly TimeZoneInfo _clientTimeZone;
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public JSONTimeZoneConverter(IHttpContextAccessor httpContextAccessor)
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{
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_httpContextAccessor = httpContextAccessor;
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//默认是UTC
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//var timeZoneId = "Etc/UTC";
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var timeZoneId = "Asia/Shanghai";
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var timeZoneIdHeader = _httpContextAccessor?.HttpContext?.Request?.Headers["TimeZoneId"];
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if (timeZoneIdHeader is not null && !string.IsNullOrEmpty(timeZoneIdHeader.Value))
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{
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timeZoneId = timeZoneIdHeader.Value;
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}
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_clientTimeZone = TimeZoneInfo.FindSystemTimeZoneById(timeZoneId);
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}
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public override bool CanConvert(Type objectType)
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{
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// 仅支持 DateTime 类型的转换
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return objectType == typeof(DateTime)|| objectType == typeof(DateTime?);
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}
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public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
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{
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DateTime? nullableDateTime = reader.Value as DateTime?;
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if (nullableDateTime != null && nullableDateTime.HasValue)
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{
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var dateTime = (DateTime)reader.Value;
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// 将客户端时间转换为服务器时区的时间
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var serverZoneTime = TimeZoneInfo.ConvertTime(dateTime, _clientTimeZone, TimeZoneInfo.Local);
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return serverZoneTime;
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}
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else
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{
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return null;
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}
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}
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public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
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{
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DateTime? nullableDateTime = value as DateTime?;
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if (nullableDateTime != null && nullableDateTime.HasValue)
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{
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//第一个参数默认使用系统本地时区 也就是应用服务器的时区
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DateTime clientZoneTime = TimeZoneInfo.ConvertTime(nullableDateTime.Value, _clientTimeZone);
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writer.WriteValue(clientZoneTime);
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}
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else
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{
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writer.WriteNull();
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}
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}
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}
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}
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