diff --git a/Bootstrap.Admin/appsettings.json b/Bootstrap.Admin/appsettings.json
index e35f4879..1a3979c6 100644
--- a/Bootstrap.Admin/appsettings.json
+++ b/Bootstrap.Admin/appsettings.json
@@ -15,7 +15,6 @@
   "ConnectionStrings": {
     "ba": "Data Source=.;Initial Catalog=BootstrapAdmin;User ID=sa;Password=sa"
   },
-  "MongoDB": "BootstrapAdmin",
   "DB": [
     {
       "Enabled": false
@@ -28,25 +27,25 @@
       }
     },
     {
-      "Enabled": true,
+      "Enabled": false,
       "ProviderName": "MySql",
       "ConnectionStrings": {
         "ba": "Server=localhost;Database=BA;Uid=argozhang;Pwd=argo@163.com;SslMode=none;"
       }
     },
     {
-      "Enabled": true,
+      "Enabled": false,
       "ProviderName": "Npgsql",
       "ConnectionStrings": {
         "ba": "Server=localhost;Database=BootstrapAdmin;User ID=argozhang;Password=argo@163.com;"
       }
     },
     {
-      "Enabled": true,
+      "Enabled": false,
       "Widget": "Bootstrap.DataAccess.MongoDB",
       "ProviderName": "MongoDB",
       "ConnectionStrings": {
-        "ba": "mongodb://localhost:27017"
+        "ba": "mongodb://localhost:27017;Database=BootstrapAdmin"
       }
     }
   ],
@@ -244,4 +243,4 @@
       }
     ]
   }
-}
+}
\ No newline at end of file
diff --git a/Bootstrap.Client.DataAccess.MongoDB/DbManager.cs b/Bootstrap.Client.DataAccess.MongoDB/DbManager.cs
index d1c95972..70d0414a 100644
--- a/Bootstrap.Client.DataAccess.MongoDB/DbManager.cs
+++ b/Bootstrap.Client.DataAccess.MongoDB/DbManager.cs
@@ -9,7 +9,7 @@ using MongoDB.Driver;
 namespace Bootstrap.Client.DataAccess.MongoDB
 {
     /// <summary>
-    /// 
+    /// 数据库操作类
     /// </summary>
     internal static class DbManager
     {
@@ -18,9 +18,9 @@ namespace Bootstrap.Client.DataAccess.MongoDB
         private static readonly object _locker = new object();
 
         /// <summary>
-        /// 
+        ///
         /// </summary>
-        private static IMongoDatabase DBAccess
+        private static IMongoDatabase BADatabase
         {
             get
             {
@@ -34,7 +34,8 @@ namespace Bootstrap.Client.DataAccess.MongoDB
                             ChangeToken.OnChange(() => ConfigurationManager.AppSettings.GetReloadToken(), () => _db = null);
                             InitClassMap();
                         }
-                        InitDb();
+                        if (_db == null)
+                            InitDb("ba");
                     }
                 }
                 return _db;
@@ -43,65 +44,66 @@ namespace Bootstrap.Client.DataAccess.MongoDB
 
         #region Collections
         /// <summary>
-        /// 
+        /// Dicts 集合
         /// </summary>
         public static IMongoCollection<BootstrapDict> Dicts
         {
             get
             {
-                return DBAccess.GetCollection<BootstrapDict>("Dicts");
+                return BADatabase.GetCollection<BootstrapDict>("Dicts");
             }
         }
 
         /// <summary>
-        /// 
+        /// Users 集合
         /// </summary>
         public static IMongoCollection<User> Users
         {
             get
             {
-                return DBAccess.GetCollection<User>("Users");
+                return BADatabase.GetCollection<User>("Users");
             }
         }
 
         /// <summary>
-        /// 
+        /// Roles 集合
         /// </summary>
         public static IMongoCollection<Role> Roles
         {
             get
             {
-                return DBAccess.GetCollection<Role>("Roles");
+                return BADatabase.GetCollection<Role>("Roles");
             }
         }
 
         /// <summary>
-        /// 
+        /// Groups 集合
         /// </summary>
         public static IMongoCollection<Group> Groups
         {
             get
             {
-                return DBAccess.GetCollection<Group>("Groups");
+                return BADatabase.GetCollection<Group>("Groups");
             }
         }
 
         /// <summary>
-        /// 
+        /// Menus 集合
         /// </summary>
         public static IMongoCollection<BootstrapMenu> Menus
         {
             get
             {
-                return DBAccess.GetCollection<BootstrapMenu>("Navigations");
+                return BADatabase.GetCollection<BootstrapMenu>("Navigations");
             }
         }
         #endregion
 
-        private static void InitDb()
+        private static void InitDb(string name = null)
         {
-            var client = new MongoClient(Longbow.Data.DbManager.GetConnectionString("ba"));
-            _db = client.GetDatabase(ConfigurationManager.AppSettings["MongoDB"]);
+            var (connectString, databaseName) = Longbow.Data.DbManager.GetMongoDB(name);
+            var client = new MongoClient(connectString);
+            _db = client.GetDatabase(databaseName);
         }
 
         private static void InitClassMap()
diff --git a/Bootstrap.Client.DataAccess/Bootstrap.Client.DataAccess.csproj b/Bootstrap.Client.DataAccess/Bootstrap.Client.DataAccess.csproj
index 5d003875..612bfef5 100644
--- a/Bootstrap.Client.DataAccess/Bootstrap.Client.DataAccess.csproj
+++ b/Bootstrap.Client.DataAccess/Bootstrap.Client.DataAccess.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Longbow.Data" Version="2.3.3" />
+    <PackageReference Include="Longbow.Data" Version="2.3.4" />
     <PackageReference Include="Longbow.Logging" Version="2.2.12" />
     <PackageReference Include="Bootstrap.Security.Mvc" Version="2.2.13" />
   </ItemGroup>
diff --git a/Bootstrap.Client/appsettings.Development.json b/Bootstrap.Client/appsettings.Development.json
index 9ddc6e49..9d06767e 100644
--- a/Bootstrap.Client/appsettings.Development.json
+++ b/Bootstrap.Client/appsettings.Development.json
@@ -36,7 +36,8 @@
       "Widget": "Bootstrap.Client.DataAccess.MongoDB",
       "ProviderName": "MongoDB",
       "ConnectionStrings": {
-        "ba": "mongodb://localhost:27017"
+        "ba": "mongodb://localhost:27017;Database=BootstrapAdmin",
+        "client": "mongodb://localhost:27017;Database=BootstrapClient"
       }
     }
   ],
diff --git a/Bootstrap.Client/appsettings.json b/Bootstrap.Client/appsettings.json
index 4df83da3..aef8585e 100644
--- a/Bootstrap.Client/appsettings.json
+++ b/Bootstrap.Client/appsettings.json
@@ -29,11 +29,11 @@
       }
     },
     {
-      "Enabled": true,
+      "Enabled": false,
       "Widget": "Bootstrap.Client.DataAccess.MongoDB",
       "ProviderName": "MongoDB",
       "ConnectionStrings": {
-        "ba": "mongodb://localhost:27017"
+        "ba": "mongodb://localhost:27017;Database=BootstrapAdmin"
       }
     }
   ],
@@ -96,4 +96,4 @@
       }
     ]
   }
-}
+}
\ No newline at end of file
diff --git a/Bootstrap.DataAccess.MongoDB/DbManager.cs b/Bootstrap.DataAccess.MongoDB/DbManager.cs
index bfb1bb8d..b529215b 100644
--- a/Bootstrap.DataAccess.MongoDB/DbManager.cs
+++ b/Bootstrap.DataAccess.MongoDB/DbManager.cs
@@ -9,7 +9,7 @@ using MongoDB.Driver;
 namespace Bootstrap.DataAccess.MongoDB
 {
     /// <summary>
-    /// 
+    /// 数据库操作类
     /// </summary>
     internal static class DbManager
     {
@@ -18,7 +18,7 @@ namespace Bootstrap.DataAccess.MongoDB
         private static readonly object _locker = new object();
 
         /// <summary>
-        /// 
+        /// IMongoDatabase 实例
         /// </summary>
         private static IMongoDatabase DBAccess
         {
@@ -34,7 +34,8 @@ namespace Bootstrap.DataAccess.MongoDB
                             ChangeToken.OnChange(() => ConfigurationManager.AppSettings.GetReloadToken(), () => _db = null);
                             InitClassMap();
                         }
-                        InitDb();
+                        if (_db == null)
+                            InitDb();
                     }
                 }
                 return _db;
@@ -43,7 +44,7 @@ namespace Bootstrap.DataAccess.MongoDB
 
         #region Collections
         /// <summary>
-        /// 
+        /// Logs 集合
         /// </summary>
         public static IMongoCollection<DataAccess.Log> Logs
         {
@@ -54,7 +55,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// Exceptions 集合
         /// </summary>
         public static IMongoCollection<DataAccess.Exceptions> Exceptions
         {
@@ -64,7 +65,7 @@ namespace Bootstrap.DataAccess.MongoDB
             }
         }
         /// <summary>
-        /// 
+        /// Dicts 集合
         /// </summary>
         public static IMongoCollection<BootstrapDict> Dicts
         {
@@ -75,7 +76,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// Users 集合
         /// </summary>
         public static IMongoCollection<User> Users
         {
@@ -86,7 +87,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// Groups 集合
         /// </summary>
         public static IMongoCollection<Group> Groups
         {
@@ -97,7 +98,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// Roles 集合
         /// </summary>
         public static IMongoCollection<Role> Roles
         {
@@ -108,7 +109,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// Menus 集合
         /// </summary>
         public static IMongoCollection<BootstrapMenu> Menus
         {
@@ -119,7 +120,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// LoginUsers 集合
         /// </summary>
         public static IMongoCollection<DataAccess.LoginUser> LoginUsers
         {
@@ -130,7 +131,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// ResetUsers 集合
         /// </summary>
         public static IMongoCollection<DataAccess.ResetUser> ResetUsers
         {
@@ -141,7 +142,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// Traces 集合
         /// </summary>
         public static IMongoCollection<DataAccess.Trace> Traces
         {
@@ -152,7 +153,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// RejectUsers 集合
         /// </summary>
         public static IMongoCollection<RejectUser> RejectUsers
         {
@@ -163,7 +164,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// Messages 集合
         /// </summary>
         public static IMongoCollection<DataAccess.Message> Messages
         {
@@ -174,7 +175,7 @@ namespace Bootstrap.DataAccess.MongoDB
         }
 
         /// <summary>
-        /// 
+        /// Tasks 集合
         /// </summary>
         public static IMongoCollection<DataAccess.Task> Tasks
         {
@@ -187,8 +188,9 @@ namespace Bootstrap.DataAccess.MongoDB
 
         private static void InitDb()
         {
-            var client = new MongoClient(Longbow.Data.DbManager.GetConnectionString());
-            _db = client.GetDatabase(ConfigurationManager.AppSettings["MongoDB"]);
+            var (connectString, databaseName) = Longbow.Data.DbManager.GetMongoDB();
+            var client = new MongoClient(connectString);
+            _db = client.GetDatabase(databaseName);
         }
 
         private static void InitClassMap()
diff --git a/Bootstrap.DataAccess/Bootstrap.DataAccess.csproj b/Bootstrap.DataAccess/Bootstrap.DataAccess.csproj
index 8919646e..e5f02365 100644
--- a/Bootstrap.DataAccess/Bootstrap.DataAccess.csproj
+++ b/Bootstrap.DataAccess/Bootstrap.DataAccess.csproj
@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Bootstrap.Security.DataAccess" Version="2.2.12" />
-    <PackageReference Include="Longbow.Data" Version="2.3.3" />
+    <PackageReference Include="Longbow.Data" Version="2.3.4" />
     <PackageReference Include="Longbow.Logging" Version="2.2.12" />
     <PackageReference Include="Longbow.PetaPoco" Version="1.0.2" />
     <PackageReference Include="Longbow.Security.Cryptography" Version="1.3.0" />
diff --git a/Bootstrap.DataAccess/DbManager.cs b/Bootstrap.DataAccess/DbManager.cs
index 7ba531a6..b63ea92b 100644
--- a/Bootstrap.DataAccess/DbManager.cs
+++ b/Bootstrap.DataAccess/DbManager.cs
@@ -7,7 +7,7 @@ namespace Bootstrap.DataAccess
     /// <summary>
     /// 
     /// </summary>
-    internal static class DbManager
+    public static class DbManager
     {
         /// <summary>
         ///