fix: 修复NewtonsoftJson问题

Yi.Abp.Net8/framework/Yi.Framework.Core/Json/DatetimeJsonConverter.cs

@@ -0,0 +1,27 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Yi.Framework.Core.Json;
+
+public class DatetimeJsonConverter : JsonConverter<DateTime>
+{
+    private string _format;
+    public DatetimeJsonConverter(string format="yyyy-MM-dd HH:mm:ss")
+    {
+        _format = format;
+    }
+
+    public override DateTime Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+    {
+        if(reader.TokenType==JsonTokenType.String)
+        {
+            if (DateTime.TryParse(reader.GetString(), out DateTime dateTime)) return dateTime;
+        }
+        return reader.GetDateTime();
+    }
+
+    public override void Write(Utf8JsonWriter writer, DateTime value, JsonSerializerOptions options)
+    {
+        writer.WriteStringValue(value.ToString(_format));
+    }
+}

Yi.Abp.Net8/framework/Yi.Framework.Core/Json/EnumStringJsonConverter.cs

@@ -0,0 +1,18 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Yi.Framework.Core.Json;
+
+public class EnumStringJsonConverter : JsonConverter<Enum>
+{
+    public override Enum? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+    {
+        var enumString = reader.GetString();
+        return (Enum)Enum.Parse(typeToConvert, enumString);
+    }
+
+    public override void Write(Utf8JsonWriter writer, Enum value, JsonSerializerOptions options)
+    {
+        writer.WriteStringValue(value.ToString());
+    }
+}