最近給朋友的小孩作了一個畢業設計。用的是asp.net MVC5 + EntityFramework6 + SQL Server 2008.html
結果作好後,朋友說能不能不要數據庫,直接運行?頓時讓我很糾結,不須要安裝數據庫但又能運行的,只能考慮單文件的數據庫了,好比說Access或是SQLite。web
查閱資料後發現Access沒法支持EntityFramework的運行,只要考慮SQLite。數據庫
經查閱資料發現,SQLite方法發佈了對EntityFramework6支持的程序集,在項目中執行以下命令:app
Install-Package System.Data.SQLite.EF6 Install-Package System.Data.SQLite.Linq
安裝後會出現三個引用:asp.net
接着Web.config中配置以下:ide
<configSections> <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --> <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /> </configSections> <connectionStrings> <add name="EducationStrings" providerName="System.Data.SQLite.EF6" connectionString="Data Source=education.db;Pooling=True" /> </connectionStrings> <entityFramework> <providers> <provider invariantName="System.Data.SQLite.EF6" type="System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6" /> </providers> <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework"> <parameters> <parameter value="v11.0" /> </parameters> </defaultConnectionFactory> </entityFramework> <system.data> <DbProviderFactories> <remove invariant="System.Data.SQLite.EF6" /> <add name="SQLite Data Provider (Entity Framework 6)" invariant="System.Data.SQLite.EF6" description=".Net Framework Data Provider for SQLite (Entity Framework 6)" type="System.Data.SQLite.EF6.SQLiteProviderFactory, System.Data.SQLite.EF6" /> </DbProviderFactories> </system.data>
這樣配置後,發現會拋異常信息以下:工具
Unable to determine the provider name for provider factory of type 'System.Data.SQLite.SQLiteFactory'. Make sure that the ADO.NET provider is installed or registered in the application config.
大概是說沒有找個支持ado.net的管道工廠方法。在stackoverflow搜索發現,須要在Web.config中添加對System.Data.SQLite.SQLiteFactory的配置。ui
在entityFramework節點的providers子節點添加配置以下:spa
<provider invariantName="System.Data.SQLite" type="System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6" />
接着在system.data節點的DbProviderFactories子節點配置以下:.net
<add name="SQLite Data Provider" invariant="System.Data.SQLite" description=".Net Framework Data Provider for SQLite" type="System.Data.SQLite.SQLiteFactory, System.Data.SQLite"/>
這下終於支持ado.net了,可是,又會拋以下異常:
unable to open database file
大概是沒法打開數據庫文件,經查資料發現,程序讀取SQLite數據庫時須要使用物理絕對路徑,解決方法有兩個,一個是在代碼中指定數據庫配置文件,一個是在Web.config中指定一個相似變量的值,以下:
<add name="EducationStrings" providerName="System.Data.SQLite.EF6" connectionString="Data Source=|DataDirectory|\education.db;Pooling=True" />
其中DataDirectory指的是數據庫的目錄,對應着的是asp.net項目下的App_Data文件夾,因此,須要把數據庫放到該目錄。
修改完畢後又會拋另一個異常:
SQL logic error or missing database no such table: Articles
大概是說沒有找到表Articles,個人項目用的是CodeFirst模式,看來SQLite不支持CodeFirst模式,只能手動建表了。若是表比較少或是字段比較少還行,若是有大量的表,光手動建表也得費好大事,若是可以把SQL Server 2008的數據庫導入到SQLite中就行了。
經谷歌後,終於找到一個工具SqlConverter,該工具可以將SQL Server的表和表內的數據庫轉換成SQLite。
經轉換後發現,SQLite中的主鍵只能是integer類型的,對應C#的int64。而個人Model倒是int32,不知道是SQLite規定的仍是工具轉換有問題。
完整的Web.config配置以下:
1 <?xml version="1.0" encoding="utf-8"?> 2 <!-- 3 有關如何配置 ASP.NET 應用程序的詳細信息,請訪問 4 http://go.microsoft.com/fwlink/?LinkId=301880 5 --> 6 <configuration> 7 <configSections> 8 <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --> 9 <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /> 10 11 </configSections> 12 <appSettings> 13 <add key="webpages:Version" value="3.0.0.0" /> 14 <add key="webpages:Enabled" value="false" /> 15 <add key="ClientValidationEnabled" value="true" /> 16 <add key="UnobtrusiveJavaScriptEnabled" value="true" /> 17 </appSettings> 18 <connectionStrings> 19 <!--<add name="EducationStrings" providerName="System.Data.SqlClient" connectionString="Data Source=.; User=sa;Password=123456;Initial Catalog=EducationDb;Integrated Security=True" />--> 20 <add name="EducationStrings" providerName="System.Data.SQLite.EF6" connectionString="Data Source=|DataDirectory|\education.db;Pooling=True" /> 21 </connectionStrings> 22 <system.web> 23 <compilation debug="true" targetFramework="4.5" /> 24 <httpRuntime targetFramework="4.5" /> 25 </system.web> 26 <system.webServer> 27 <validation validateIntegratedModeConfiguration="false" /> 28 <modules runAllManagedModulesForAllRequests="true"> 29 <!--<add name="AuthorizeModule" type="Education.Web.AuthorizeModule"/>--> 30 </modules> 31 </system.webServer> 32 33 <runtime> 34 <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> 35 <dependentAssembly> 36 <assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed" /> 37 <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" /> 38 </dependentAssembly> 39 <dependentAssembly> 40 <assemblyIdentity name="System.Web.Optimization" publicKeyToken="31bf3856ad364e35" /> 41 <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="1.1.0.0" /> 42 </dependentAssembly> 43 <dependentAssembly> 44 <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" /> 45 <bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" /> 46 </dependentAssembly> 47 <dependentAssembly> 48 <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" /> 49 <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" /> 50 </dependentAssembly> 51 <dependentAssembly> 52 <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" /> 53 <bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" /> 54 </dependentAssembly> 55 <dependentAssembly> 56 <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" /> 57 <bindingRedirect oldVersion="0.0.0.0-5.2.0.0" newVersion="5.2.0.0" /> 58 </dependentAssembly> 59 </assemblyBinding> 60 </runtime> 61 <entityFramework> 62 <providers> 63 <provider invariantName="System.Data.SQLite" type="System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6" /> 64 <provider invariantName="System.Data.SQLite.EF6" type="System.Data.SQLite.EF6.SQLiteProviderServices, System.Data.SQLite.EF6" /> 65 </providers> 66 <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework"> 67 <parameters> 68 <parameter value="v11.0" /> 69 </parameters> 70 </defaultConnectionFactory> 71 </entityFramework> 72 <system.data> 73 <DbProviderFactories> 74 <remove invariant="System.Data.SQLite.EF6" /> 75 <add name="SQLite Data Provider" invariant="System.Data.SQLite" description=".Net Framework Data Provider for SQLite" type="System.Data.SQLite.SQLiteFactory, System.Data.SQLite"/> 76 <add name="SQLite Data Provider (Entity Framework 6)" invariant="System.Data.SQLite.EF6" description=".Net Framework Data Provider for SQLite (Entity Framework 6)" type="System.Data.SQLite.EF6.SQLiteProviderFactory, System.Data.SQLite.EF6" /> 77 </DbProviderFactories> 78 </system.data> 79 </configuration>
這樣終於能夠運行了。附代碼和工具。
代碼下載:
http://download.csdn.net/detail/lifeilin6671/7837447
轉換工具下載: