diff --git a/src/blazor/admin/BootstrapAdmin.DataAccess.Models/Navigation.cs b/src/blazor/admin/BootstrapAdmin.DataAccess.Models/Navigation.cs
index 846dfcfd..1757e13b 100644
--- a/src/blazor/admin/BootstrapAdmin.DataAccess.Models/Navigation.cs
+++ b/src/blazor/admin/BootstrapAdmin.DataAccess.Models/Navigation.cs
@@ -1,14 +1,12 @@
 // Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
 
 using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations.Schema;
 
 namespace BootstrapAdmin.DataAccess.Models;
 
 /// <summary>
 /// Bootstrap Admin 后台管理菜单相关操作实体类
 /// </summary>
-[Table("Navigations")]
 public class Navigation
 {
     /// <summary>
diff --git a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/AppService.cs b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/AppService.cs
index 939fbd66..787d27a9 100644
--- a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/AppService.cs
+++ b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/AppService.cs
@@ -3,8 +3,10 @@ using PetaPoco;
 
 namespace BootstrapAdmin.DataAccess.PetaPoco.Services;
 
-class AppService : BaseDatabase, IApp
+class AppService : IApp
 {
+    private IDatabase Database { get; }
+
     public AppService(IDatabase db)
     {
         Database = db;
diff --git a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/Database.cs b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/Database.cs
deleted file mode 100644
index d25a6c4b..00000000
--- a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/Database.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-using PetaPoco;
-
-namespace BootstrapAdmin.DataAccess.PetaPoco.Services;
-
-abstract class BaseDatabase
-{
-    /// <summary>
-    /// 
-    /// </summary>
-    [NotNull]
-    protected IDatabase? Database { get; set; }
-}
diff --git a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/DictService.cs b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/DictService.cs
index b70b02b4..0d7caf36 100644
--- a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/DictService.cs
+++ b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/DictService.cs
@@ -7,8 +7,10 @@ using PetaPoco;
 
 namespace BootstrapAdmin.DataAccess.PetaPoco.Services;
 
-class DictService : BaseDatabase, IDict
+class DictService : IDict
 {
+    private IDatabase Database { get; }
+
     private string AppId { get; set; }
 
     /// <summary>
diff --git a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/ExceptionService.cs b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/ExceptionService.cs
index 3aabff26..b5d9565c 100644
--- a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/ExceptionService.cs
+++ b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/ExceptionService.cs
@@ -4,8 +4,10 @@ using PetaPoco;
 
 namespace BootstrapAdmin.DataAccess.PetaPoco.Services;
 
-class ExceptionService : BaseDatabase, IException
+class ExceptionService : IException
 {
+    private IDatabase Database { get; }
+
     public ExceptionService(IDatabase db) => Database = db;
 
     public bool Log(Error exception)
diff --git a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/GroupService.cs b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/GroupService.cs
index 6e685c13..4320abe0 100644
--- a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/GroupService.cs
+++ b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/GroupService.cs
@@ -4,8 +4,10 @@ using PetaPoco;
 
 namespace BootstrapAdmin.DataAccess.PetaPoco.Services;
 
-class GroupService : BaseDatabase, IGroup
+class GroupService : IGroup
 {
+    private IDatabase Database { get; }
+
     /// <summary>
     /// 
     /// </summary>
diff --git a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/NavigationService.cs b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/NavigationService.cs
index 012469cc..b0989a9a 100644
--- a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/NavigationService.cs
+++ b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/NavigationService.cs
@@ -7,8 +7,10 @@ namespace BootstrapAdmin.DataAccess.PetaPoco.Services;
 /// <summary>
 /// 
 /// </summary>
-class NavigationService : BaseDatabase, INavigation
+class NavigationService : INavigation
 {
+    private IDatabase Database { get; }
+
     /// <summary>
     /// 
     /// </summary>
diff --git a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/RoleService.cs b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/RoleService.cs
index 7b85a150..3e07f49d 100644
--- a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/RoleService.cs
+++ b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/RoleService.cs
@@ -4,8 +4,10 @@ using PetaPoco;
 
 namespace BootstrapAdmin.DataAccess.PetaPoco.Services;
 
-class RoleService : BaseDatabase, IRole
+class RoleService : IRole
 {
+    private IDatabase Database { get; }
+
     /// <summary>
     /// 
     /// </summary>
diff --git a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/UserService.cs b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/UserService.cs
index 2e67767c..51976d34 100644
--- a/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/UserService.cs
+++ b/src/blazor/admin/BootstrapAdmin.DataAccess.PetaPoco/Services/UserService.cs
@@ -5,8 +5,10 @@ using PetaPoco;
 
 namespace BootstrapAdmin.DataAccess.PetaPoco.Services;
 
-class UserService : BaseDatabase, IUser
+class UserService : IUser
 {
+    private IDatabase Database { get; }
+
     /// <summary>
     /// 
     /// </summary>