feat:完成codefirst与种子数据，发现非空类型问题，等待紧急修复

Yi.Furion.Net6/Yi.Framework.Infrastructure/Sqlsugar/SqlsugarCodeFirstExtensions.cs

@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using Furion;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+using SqlSugar;
+
+namespace Yi.Framework.Infrastructure.Sqlsugar
+{
+    public static class SqlsugarCodeFirstExtensions
+    {
+        public static void UseSqlsugarCodeFirstServer(this IApplicationBuilder app)
+        {
+            var db = app.ApplicationServices.GetRequiredService<ISqlSugarClient>();
+            var options = app.ApplicationServices.GetRequiredService<IOptions<DbConnOptions>>();
+
+            if (options.Value.EnabledCodeFirst == false) return;
+
+            db.DbMaintenance.CreateDatabase();
+            var assemblys = new List<Assembly>();
+
+            //全盘加载
+            if (options.Value.EntityAssembly is null)
+            {
+                assemblys.AddRange(App.Assemblies.ToList());
+            }
+            //按需加载
+            else
+            {
+                options.Value.EntityAssembly.ForEach(a =>
+                {
+                    assemblys.Add(Assembly.Load(a));
+                });
+            }
+
+            foreach (var assembly in assemblys)
+            {
+                TableInvoer(db, assembly.GetTypes().ToList());
+            }
+
+        }
+
+        private static void TableInvoer(ISqlSugarClient _Db, List<Type> typeList)
+        {
+            foreach (var t in typeList)
+            {
+                //扫描如果存在SugarTable特性 并且 不是分表模型，直接codefirst
+                if (t.GetCustomAttributes(false).Any(a => a.GetType().Equals(typeof(SugarTable))
+                && !t.GetCustomAttributes(false).Any(a => a.GetType().Equals(typeof(SplitTableAttribute)))))
+                {
+                    _Db.CodeFirst.SetStringDefaultLength(200).InitTables(t);//这样一个表就能成功创建了
+                }
+            }
+        }
+    }
+}