[时区修改-调整名称]

2024-02-21 14:33:38 +08:00
parent 61530be208
commit a5899023b9
3 changed files with 11 additions and 17 deletions
@@ -0,0 +1,79 @@
+using IRaCIS.Core.Domain.Share;
+using Microsoft.AspNetCore.Http;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using StackExchange.Redis;
+using System;
+using System.Globalization;
+
+namespace IRaCIS.Core.API
+{
+    /// <summary>
+    /// 序列化，反序列化的时候，处理时间 时区转换
+    /// </summary>
+    public class JSONTimeZoneConverter : DateTimeConverterBase
+    {
+        private readonly IHttpContextAccessor _httpContextAccessor;
+
+        private readonly TimeZoneInfo _clientTimeZone;
+        public JSONTimeZoneConverter(IHttpContextAccessor httpContextAccessor)
+        {
+            _httpContextAccessor = httpContextAccessor;
+
+            //默认是UTC
+            //var timeZoneId = "Etc/UTC";
+            var timeZoneId = "Asia/Shanghai";
+
+            var timeZoneIdHeader = _httpContextAccessor?.HttpContext?.Request?.Headers["TimeZoneId"];
+
+            if (timeZoneIdHeader is not null && !string.IsNullOrEmpty(timeZoneIdHeader.Value))
+            {
+                timeZoneId = timeZoneIdHeader.Value;
+            }
+
+            _clientTimeZone = TimeZoneInfo.FindSystemTimeZoneById(timeZoneId);
+
+        }
+
+        public override bool CanConvert(Type objectType)
+        {
+            // 仅支持 DateTime 类型的转换
+            return objectType == typeof(DateTime)|| objectType == typeof(DateTime?);
+        }
+
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if (reader.Value == null)
+                return null;
+            else
+            {
+                var dateTime = (DateTime)reader.Value;
+
+                // 将客户端时间转换为服务器时区的时间
+                var serverZoneTime = TimeZoneInfo.ConvertTime(dateTime, _clientTimeZone, TimeZoneInfo.Local);
+            
+                return serverZoneTime;
+            }
+          
+            // 在反序列化时，我们不需要此转换器，因此不实现此方法
+            //throw new NotImplementedException();
+        }
+
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {                  
+            DateTime? nullableDateTime = value as DateTime?;
+
+            if (nullableDateTime != null && nullableDateTime.HasValue)
+            {
+                //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
+                DateTime clientZoneTime = TimeZoneInfo.ConvertTime(nullableDateTime.Value, _clientTimeZone);
+                writer.WriteValue(clientZoneTime);
+            }
+            else
+            {
+                writer.WriteNull();
+            }            
+        }
+
+    }
+}