添加项目文件。

Atomx.Utils/Json/Converts/DateTimeJsonConverter.cs

@@ -0,0 +1,33 @@
+using System.Text.Json;
+
+namespace Atomx.Utils.Json.Converts
+{
+	public class DateTimeJsonConverter : System.Text.Json.Serialization.JsonConverter<DateTime>
+	{
+		readonly string _dateFormatString;
+		public DateTimeJsonConverter()
+		{
+			_dateFormatString = "yyyy-MM-dd HH:mm:ss";
+		}
+
+		public DateTimeJsonConverter(string dateFormatString)
+		{
+			_dateFormatString = dateFormatString;
+		}
+
+		public override DateTime Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+		{
+			var text = reader.GetString();
+			if (string.IsNullOrEmpty(text))
+			{
+				return default;
+			}
+			return DateTime.Parse(text);
+		}
+
+		public override void Write(Utf8JsonWriter writer, DateTime value, JsonSerializerOptions options)
+		{
+			writer.WriteStringValue(value.ToString("s"));
+		}
+	}
+}