46 lines
1.9 KiB
C#
46 lines
1.9 KiB
C#
using System;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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namespace Infrastructure.Converter
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{
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public class JsonConverterUtil
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{
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public class DateTimeNullConverter : JsonConverter<DateTime?>
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{
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public override DateTime? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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=> string.IsNullOrEmpty(reader.GetString()) ? default : ParseDateTime(reader.GetString());
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public override void Write(Utf8JsonWriter writer, DateTime? value, JsonSerializerOptions options)
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=> writer.WriteStringValue(value?.ToString("yyyy-MM-dd HH:mm:ss"));
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}
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public class DateTimeConverter : JsonConverter<DateTime>
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{
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public override DateTime Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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{
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// 获取本地时区
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TimeZoneInfo localTimeZone = TimeZoneInfo.Local;
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// 获取北京时区
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TimeZoneInfo beijingTimeZone = TimeZoneInfo.FindSystemTimeZoneById("China Standard Time");
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// 将本地时间转换为北京时间
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var dateTime = ParseDateTime(reader.GetString());
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return dateTime == null ? DateTime.MinValue : TimeZoneInfo.ConvertTime(dateTime.Value, localTimeZone, beijingTimeZone);
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}
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public override void Write(Utf8JsonWriter writer, DateTime value, JsonSerializerOptions options)
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=> writer.WriteStringValue(value.ToString("yyyy-MM-dd HH:mm:ss"));
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}
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public static DateTime? ParseDateTime(string dateStr)
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{
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if (System.Text.RegularExpressions.Regex.IsMatch(dateStr, @"^\d{4}[/-]") && DateTime.TryParse(dateStr, null, System.Globalization.DateTimeStyles.AssumeLocal, out var dateVal))
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return dateVal;
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return null;
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}
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}
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}
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