Add ValueToStringConverter

Src/Asp.Net/SqlSugar/DistributedSystem/Snowflake/StringAttribute.cs

@@ -0,0 +1,25 @@
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SqlSugar
+{
+	public class ValueToStringConverter : JsonConverter
+	{
+		public override bool CanRead => false;
+
+		public override bool CanConvert(Type objectType) => objectType.IsValueType;
+
+		public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+			=> throw new NotSupportedException();
+
+		public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+		{
+			var str = value?.ToString();
+			writer.WriteValue(str);
+		}
+	}
+}

Src/Asp.Net/SqlSugar/SqlSugar.csproj

@@ -91,6 +91,7 @@
     <Compile Include="Abstract\Reportable\ReportableProvider.cs" />
     <Compile Include="Abstract\SaveableProvider\Storageable.cs" />
     <Compile Include="DistributedSystem\Snowflake\SnowFlakeSingle.cs" />
+    <Compile Include="DistributedSystem\Snowflake\StringAttribute.cs" />
     <Compile Include="Entities\ConfigQuery.cs" />
     <Compile Include="Entities\ManyToManyConfig.cs" />
     <Compile Include="Entities\SingleColumnsEntity.cs" />