diff --git a/src/admin/Bootstrap.Admin/Bootstrap.Admin.csproj b/src/admin/Bootstrap.Admin/Bootstrap.Admin.csproj
index b7fd7374..49055a8c 100644
--- a/src/admin/Bootstrap.Admin/Bootstrap.Admin.csproj
+++ b/src/admin/Bootstrap.Admin/Bootstrap.Admin.csproj
@@ -12,7 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="Bootstrap.Security.DataAccess" Version="2.2.21" />
-    <PackageReference Include="Bootstrap.Security.Mvc" Version="3.0.0" />
+    <PackageReference Include="Bootstrap.Security.Mvc" Version="3.0.1-beta1" />
     <PackageReference Include="Longbow.Configuration" Version="2.2.7" />
     <PackageReference Include="Longbow.Logging" Version="3.0.0" />
     <PackageReference Include="Longbow.Tasks" Version="2.2.24" />
diff --git a/src/admin/Bootstrap.Admin/Controllers/AccountController.cs b/src/admin/Bootstrap.Admin/Controllers/AccountController.cs
index 5ef4b84d..e81a8dc1 100644
--- a/src/admin/Bootstrap.Admin/Controllers/AccountController.cs
+++ b/src/admin/Bootstrap.Admin/Controllers/AccountController.cs
@@ -9,6 +9,7 @@ using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.WebUtilities;
 using Microsoft.Extensions.Configuration;
 using System;
 using System.Linq;
@@ -67,16 +68,17 @@ namespace Bootstrap.Admin.Controllers
         /// <summary>
         /// 系统登录方法
         /// </summary>
+        /// <param name="appId"></param>
         /// <returns></returns>
         [HttpGet]
-        public ActionResult Login()
+        public ActionResult Login([FromQuery] string appId = "0")
         {
             if (DictHelper.RetrieveSystemModel())
             {
                 ViewBag.UserName = "Admin";
                 ViewBag.Password = "123789";
             }
-            return User.Identity.IsAuthenticated ? (ActionResult)Redirect("~/Home/Index") : View("Login", new LoginModel());
+            return User.Identity.IsAuthenticated ? (ActionResult)Redirect("~/Home/Index") : View("Login", new LoginModel(appId));
         }
 
         /// <summary>
@@ -125,12 +127,13 @@ namespace Bootstrap.Admin.Controllers
         /// <param name="userName">User name.</param>
         /// <param name="password">Password.</param>
         /// <param name="remember">Remember.</param>
+        /// <param name="appId"></param>
         [HttpPost]
-        public async Task<IActionResult> Login(string userName, string password, string remember)
+        public async Task<IActionResult> Login(string userName, string password, string remember, string appId = "0")
         {
             var auth = UserHelper.Authenticate(userName, password);
             HttpContext.Log(userName, auth);
-            return auth ? await SignInAsync(userName, remember == "true") : View("Login", new LoginModel() { AuthFailed = true });
+            return auth ? await SignInAsync(userName, remember == "true") : View("Login", new LoginModel(appId) { AuthFailed = true });
         }
 
         private async Task<IActionResult> SignInAsync(string userName, bool persistent, string authenticationScheme = CookieAuthenticationDefaults.AuthenticationScheme)
@@ -163,12 +166,13 @@ namespace Bootstrap.Admin.Controllers
         /// <summary>
         /// Logout this instance.
         /// </summary>
+        /// <param name="appId"></param>
         /// <returns>The logout.</returns>
         [HttpGet]
-        public async Task<IActionResult> Logout()
+        public async Task<IActionResult> Logout([FromQuery]string appId = "0")
         {
             await HttpContext.SignOutAsync();
-            return Redirect(Request.PathBase + CookieAuthenticationDefaults.LoginPath);
+            return Redirect(QueryHelpers.AddQueryString(Request.PathBase + CookieAuthenticationDefaults.LoginPath, "AppId", appId));
         }
 
         /// <summary>
diff --git a/src/admin/Bootstrap.Admin/Controllers/HomeController.cs b/src/admin/Bootstrap.Admin/Controllers/HomeController.cs
index ae9b5843..be2e6c84 100644
--- a/src/admin/Bootstrap.Admin/Controllers/HomeController.cs
+++ b/src/admin/Bootstrap.Admin/Controllers/HomeController.cs
@@ -19,7 +19,7 @@ namespace Bootstrap.Admin.Controllers
         {
             var model = new HeaderBarModel(User.Identity);
             if (string.IsNullOrEmpty(model.UserName)) return Redirect(Request.PathBase + CookieAuthenticationDefaults.LogoutPath);
-            var url = DictHelper.RetrieveHomeUrl(model.AppCode);
+            var url = DictHelper.RetrieveHomeUrl(model.AppId);
             return url.Equals("~/Home/Index", System.StringComparison.OrdinalIgnoreCase) ? (IActionResult)View(model) : Redirect(url);
         }
 
diff --git a/src/admin/Bootstrap.Admin/Models/HeaderBarModel.cs b/src/admin/Bootstrap.Admin/Models/HeaderBarModel.cs
index aeab1773..925b99f6 100644
--- a/src/admin/Bootstrap.Admin/Models/HeaderBarModel.cs
+++ b/src/admin/Bootstrap.Admin/Models/HeaderBarModel.cs
@@ -21,9 +21,13 @@ namespace Bootstrap.Admin.Models
                 Icon = user.Icon.Contains("://", StringComparison.OrdinalIgnoreCase) ? user.Icon : string.Format("{0}{1}", DictHelper.RetrieveIconFolderPath(), user.Icon);
                 DisplayName = user.DisplayName;
                 UserName = user.UserName;
-                AppCode = user.App;
+                AppId = user.App;
                 Css = user.Css;
                 ActiveCss = string.IsNullOrEmpty(Css) ? Theme : Css;
+
+                // 通过 AppCode 获取用户默认应用的标题
+                Title = DictHelper.RetrieveWebTitle(AppId);
+                Footer = DictHelper.RetrieveWebFooter(AppId);
             }
         }
 
@@ -50,7 +54,7 @@ namespace Bootstrap.Admin.Models
         /// <summary>
         /// 获得 当前设置的默认应用
         /// </summary>
-        public string AppCode { get; }
+        public string AppId { get; }
 
         /// <summary>
         /// 获得 当前样式
diff --git a/src/admin/Bootstrap.Admin/Models/LoginModel.cs b/src/admin/Bootstrap.Admin/Models/LoginModel.cs
index 2db09765..1870ba6c 100644
--- a/src/admin/Bootstrap.Admin/Models/LoginModel.cs
+++ b/src/admin/Bootstrap.Admin/Models/LoginModel.cs
@@ -10,7 +10,8 @@ namespace Bootstrap.Admin.Models
         /// <summary>
         /// 默认构造函数
         /// </summary>
-        public LoginModel()
+        /// <param name="appId"></param>
+        public LoginModel(string appId = "0") : base(appId)
         {
             ImageLibUrl = DictHelper.RetrieveImagesLibUrl();
         }
diff --git a/src/admin/Bootstrap.Admin/Models/ModelBase.cs b/src/admin/Bootstrap.Admin/Models/ModelBase.cs
index cb445d5f..8f5da079 100644
--- a/src/admin/Bootstrap.Admin/Models/ModelBase.cs
+++ b/src/admin/Bootstrap.Admin/Models/ModelBase.cs
@@ -10,10 +10,11 @@ namespace Bootstrap.Admin.Models
         /// <summary>
         /// 默认构造函数
         /// </summary>
-        public ModelBase()
+        /// <param name="appId"></param>
+        public ModelBase(string appId = "0")
         {
-            Title = DictHelper.RetrieveWebTitle();
-            Footer = DictHelper.RetrieveWebFooter();
+            Title = DictHelper.RetrieveWebTitle(appId);
+            Footer = DictHelper.RetrieveWebFooter(appId);
             Theme = DictHelper.RetrieveActiveTheme();
             IsDemo = DictHelper.RetrieveSystemModel();
             ShowCardTitle = DictHelper.RetrieveCardTitleStatus() ? "" : "no-card-header";
@@ -26,15 +27,23 @@ namespace Bootstrap.Admin.Models
             EnableAutoLockScreen = DictHelper.RetrieveAutoLockScreen();
         }
 
+        /// <summary>
+        /// 默认构造函数
+        /// </summary>
+        public ModelBase() : this("0")
+        {
+
+        }
+
         /// <summary>
         /// 获取 网站标题
         /// </summary>
-        public string Title { get; private set; }
+        public string Title { get; protected set; }
 
         /// <summary>
         /// 获取 网站页脚
         /// </summary>
-        public string Footer { get; private set; }
+        public string Footer { get; protected set; }
 
         /// <summary>
         /// 网站样式全局设置
diff --git a/src/admin/Bootstrap.Admin/Views/Admin/Profiles.cshtml b/src/admin/Bootstrap.Admin/Views/Admin/Profiles.cshtml
index 20d02f35..e57c1493 100644
--- a/src/admin/Bootstrap.Admin/Views/Admin/Profiles.cshtml
+++ b/src/admin/Bootstrap.Admin/Views/Admin/Profiles.cshtml
@@ -87,7 +87,7 @@
     <div class="card-body">
         <div class="form-group">
             <div class="btn-group" role="group">
-                <button id="app" class="btn btn-success dropdown-select dropdown-toggle" data-toggle="dropdown" data-default-val="" value="@Model.AppCode">未设置</button>
+                <button id="app" class="btn btn-success dropdown-select dropdown-toggle" data-toggle="dropdown" data-default-val="" value="@Model.AppId">未设置</button>
                 <div class="dropdown-menu">
                     @foreach (var app in Model.Applications)
                     {
diff --git a/src/admin/Bootstrap.Admin/Views/Shared/Header.cshtml b/src/admin/Bootstrap.Admin/Views/Shared/Header.cshtml
index c5189ef9..7366b049 100644
--- a/src/admin/Bootstrap.Admin/Views/Shared/Header.cshtml
+++ b/src/admin/Bootstrap.Admin/Views/Shared/Header.cshtml
@@ -112,7 +112,7 @@
                     <a href="~/Admin/Notifications"><i class="fa fa-bell"></i>通知<span id="logoutNoti" class="badge badge-pill badge-success"></span></a>
                 </div>
                 <div class="dropdown-item">
-                    <a href="~/Account/Logout"><i class="fa fa-key"></i>注销</a>
+                    <a href="~/Account/Logout?appId=@Model.AppId"><i class="fa fa-key"></i>注销</a>
                 </div>
             </div>
         </div>
diff --git a/src/admin/Bootstrap.DataAccess.MongoDB/Dict.cs b/src/admin/Bootstrap.DataAccess.MongoDB/Dict.cs
index 1f067f5a..b5d131a1 100644
--- a/src/admin/Bootstrap.DataAccess.MongoDB/Dict.cs
+++ b/src/admin/Bootstrap.DataAccess.MongoDB/Dict.cs
@@ -74,21 +74,23 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// 获得网站标题设置
         /// </summary>
+        /// <param name="appId"></param>
         /// <returns></returns>
-        public override string RetrieveWebTitle()
+        public override string RetrieveWebTitle(string appId = "0")
         {
-            var code = RetrieveAppName("网站标题");
+            var code = RetrieveAppName("网站标题", appId);
             if (code == "网站标题未设置") code = DictHelper.RetrieveDicts().FirstOrDefault(d => d.Name == "网站标题" && d.Category == "网站设置" && d.Define == 0)?.Code ?? "后台管理系统";
             return code;
         }
 
         /// <summary>
-        /// 
+        /// 获得网站页脚设置
         /// </summary>
+        /// <param name="appId"></param>
         /// <returns></returns>
-        public override string RetrieveWebFooter()
+        public override string RetrieveWebFooter(string appId = "0")
         {
             var code = RetrieveAppName("网站页脚");
             if (code == "网站页脚未设置") code = DictHelper.RetrieveDicts().FirstOrDefault(d => d.Name == "网站页脚" && d.Category == "网站设置" && d.Define == 0)?.Code ?? "2016 © 通用后台管理系统";
diff --git a/src/admin/Bootstrap.DataAccess/Dict.cs b/src/admin/Bootstrap.DataAccess/Dict.cs
index a28b9e27..66de0427 100644
--- a/src/admin/Bootstrap.DataAccess/Dict.cs
+++ b/src/admin/Bootstrap.DataAccess/Dict.cs
@@ -63,11 +63,13 @@ namespace Bootstrap.DataAccess
         /// <summary>
         /// 获取系统网站标题
         /// </summary>
+        /// <param name="appId"></param>
         /// <returns></returns>
-        public virtual string RetrieveWebTitle()
+        public virtual string RetrieveWebTitle(string appId = "0")
         {
             // 优先查找配置的应用程序网站标题
-            var code = DbHelper.RetrieveTitle();
+            var code = DbHelper.RetrieveTitle(appId);
+
             if (code == "网站标题未设置") code = DictHelper.RetrieveDicts().FirstOrDefault(d => d.Name == "网站标题" && d.Category == "网站设置" && d.Define == 0)?.Code ?? "后台管理系统";
             return code;
         }
@@ -75,11 +77,12 @@ namespace Bootstrap.DataAccess
         /// <summary>
         /// 获取系统网站页脚
         /// </summary>
+        /// <param name="appId"></param>
         /// <returns></returns>
-        public virtual string RetrieveWebFooter()
+        public virtual string RetrieveWebFooter(string appId = "0")
         {
             // 优先查找配置的应用程序网站标题
-            var code = DbHelper.RetrieveFooter();
+            var code = DbHelper.RetrieveFooter(appId);
             if (code == "网站页脚未设置") code = DictHelper.RetrieveDicts().FirstOrDefault(d => d.Name == "网站页脚" && d.Category == "网站设置" && d.Define == 0)?.Code ?? "2016 © 通用后台管理系统";
             return code;
         }
diff --git a/src/admin/Bootstrap.DataAccess/Helper/DictHelper.cs b/src/admin/Bootstrap.DataAccess/Helper/DictHelper.cs
index ca3e2465..7ba70dc8 100644
--- a/src/admin/Bootstrap.DataAccess/Helper/DictHelper.cs
+++ b/src/admin/Bootstrap.DataAccess/Helper/DictHelper.cs
@@ -98,14 +98,16 @@ namespace Bootstrap.DataAccess
         /// <summary>
         /// 获取站点 Title 配置信息
         /// </summary>
+        /// <param name="appId"></param>
         /// <returns></returns>
-        public static string RetrieveWebTitle() => DbContextManager.Create<Dict>().RetrieveWebTitle();
+        public static string RetrieveWebTitle(string appId = "0") => DbContextManager.Create<Dict>().RetrieveWebTitle(appId);
 
         /// <summary>
         /// 获取站点 Footer 配置信息
         /// </summary>
+        /// <param name="appId"></param>
         /// <returns></returns>
-        public static string RetrieveWebFooter() => DbContextManager.Create<Dict>().RetrieveWebFooter();
+        public static string RetrieveWebFooter(string appId = "0") => DbContextManager.Create<Dict>().RetrieveWebFooter(appId);
 
         /// <summary>
         /// 获得系统中配置的可以使用的网站样式
diff --git a/src/client/Bootstrap.Client/Bootstrap.Client.csproj b/src/client/Bootstrap.Client/Bootstrap.Client.csproj
index 7cc814af..921aa772 100644
--- a/src/client/Bootstrap.Client/Bootstrap.Client.csproj
+++ b/src/client/Bootstrap.Client/Bootstrap.Client.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Bootstrap.Security.Mvc" Version="3.0.0" />
+    <PackageReference Include="Bootstrap.Security.Mvc" Version="3.0.1-beta1" />
     <PackageReference Include="Longbow.Configuration" Version="2.2.7" />
     <PackageReference Include="Longbow.Logging" Version="3.0.0" />
     <PackageReference Include="Microsoft.Data.Sqlite" Version="3.0.0" />
diff --git a/src/client/Bootstrap.Client/Models/HeaderBarModel.cs b/src/client/Bootstrap.Client/Models/HeaderBarModel.cs
index 4873c4ee..419d6a08 100644
--- a/src/client/Bootstrap.Client/Models/HeaderBarModel.cs
+++ b/src/client/Bootstrap.Client/Models/HeaderBarModel.cs
@@ -29,6 +29,7 @@ namespace Bootstrap.Client.Models
             var authHost = ConfigurationManager.Get<BootstrapAdminAuthenticationOptions>().AuthHost;
             var uriBuilder = new UriBuilder(authHost);
             uriBuilder.Path = uriBuilder.Path == "/" ? CookieAuthenticationDefaults.LogoutPath.Value : $"{uriBuilder.Path.TrimEnd('/')}{CookieAuthenticationDefaults.LogoutPath.Value}";
+            uriBuilder.Query = $"AppId={AppId}";
             LogoutUrl = uriBuilder.ToString();
 
             // set Icon
diff --git a/src/client/Bootstrap.Client/Startup.cs b/src/client/Bootstrap.Client/Startup.cs
index c81ae680..b5180699 100644
--- a/src/client/Bootstrap.Client/Startup.cs
+++ b/src/client/Bootstrap.Client/Startup.cs
@@ -6,7 +6,6 @@ using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.HttpOverrides;
-using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;