Không thể mở cơ sở dữ liệu (sqlite) trong ứng dụng asp.net mvc3 bằng cách sử dụng spring.net

Question

Tôi đang viết một ứng dụng web asp.net mvc3. Tôi muốn sử dụng một cơ sở dữ liệu sqlite. Đáng tiếc là tôi nhận được một SqliteException nói "không thể mở cơ sở dữ liệu".

mùa xuân-Version: 1.3.2

NHibernate-Version: 3,2

DbProvider/ConnectionString:

<db:provider id="employeesDbProvider" 
      provider="SQLite-1.0.72" 
      connectionString="Data Source=.\Database\Employees.db3;Version=3;"> 
</db:provider> 

stacktrace:

bei System.Data.SQLite.SQLite3.Open(String strFilename, SQLiteOpenFlagsEnum flags, Int32 maxPoolSize, Boolean usePool) in c:\dev\sqlite\dotnet\System.Data.SQLite\SQLite3.cs:Zeile 239. 
bei System.Data.SQLite.SQLiteConnection.Open() in c:\dev\sqlite\dotnet\System.Data.SQLite\SQLiteConnection.cs:Zeile 1022. 
bei NHibernate.Connection.DriverConnectionProvider.GetConnection() 

Tôi thậm chí đã cố gắng thiết lập DataSource để một đường dẫn tuyệt đối (C: \ temp \ database \ Employees.db3) nhưng cùng một SqLiteException được ném ra.

Cập nhật:

stacktrace hiển thị trên trang báo lỗi:

[SQLiteException (0x80004005): Unable to open the database file] 
    System.Data.SQLite.SQLite3.Open(String strFilename, SQLiteOpenFlagsEnum flags, Int32 maxPoolSize, Boolean usePool) in c:\dev\sqlite\dotnet\System.Data.SQLite\SQLite3.cs:239 
    System.Data.SQLite.SQLiteConnection.Open() in c:\dev\sqlite\dotnet\System.Data.SQLite\SQLiteConnection.cs:1022 
    NHibernate.Connection.DriverConnectionProvider.GetConnection() +155 
    NHibernate.Tool.hbm2ddl.SuppliedConnectionProviderConnectionHelper.Prepare() +41 
    NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.GetReservedWords(Dialect dialect, IConnectionHelper connectionHelper) +105 
    NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.Update(ISessionFactory sessionFactory) +151 
    NHibernate.Impl.SessionFactoryImpl..ctor(Configuration cfg, IMapping mapping, Settings settings, EventListeners listeners) +1012 
    NHibernate.Cfg.Configuration.BuildSessionFactory() +162 
    Spring.Data.NHibernate.LocalSessionFactoryObject.NewSessionFactory(Configuration config) in c:\_prj\spring-net\trunk\src\Spring\Spring.Data.NHibernate20\Data\NHibernate\LocalSessionFactoryObject.cs:952 
    Spring.Data.NHibernate.LocalSessionFactoryObject.AfterPropertiesSet() in c:\_prj\spring-net\trunk\src\Spring\Spring.Data.NHibernate20\Data\NHibernate\LocalSessionFactoryObject.cs:706 
    Spring.Objects.Factory.Support.AbstractAutowireCapableObjectFactory.InvokeInitMethods(Object target, String name, IConfigurableObjectDefinition definition) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\Support\AbstractAutowireCapableObjectFactory.cs:1294 
    Spring.Objects.Factory.Support.AbstractAutowireCapableObjectFactory.ConfigureObject(String name, RootObjectDefinition definition, IObjectWrapper wrapper) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\Support\AbstractAutowireCapableObjectFactory.cs:1890 
    Spring.Objects.Factory.Support.WebObjectFactory.ConfigureObject(String name, RootObjectDefinition definition, IObjectWrapper wrapper) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web\Objects\Factory\Support\WebObjectFactory.cs:450 
    Spring.Objects.Factory.Support.AbstractAutowireCapableObjectFactory.InstantiateObject(String name, RootObjectDefinition definition, Object[] arguments, Boolean allowEagerCaching, Boolean suppressConfigure) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\Support\AbstractAutowireCapableObjectFactory.cs:921 

[ObjectCreationException: Error creating object with name 'employeesSessionFactory' defined in 'file [C:\Develop\ASP.Net-Schulung\Mitarbeiterverwaltung.Web\bin\Config\Spring.Database.config.xml] line 16' : Initialization of object failed : Unable to open the database file] 
    Spring.Objects.Factory.Support.AbstractAutowireCapableObjectFactory.InstantiateObject(String name, RootObjectDefinition definition, Object[] arguments, Boolean allowEagerCaching, Boolean suppressConfigure) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\Support\AbstractAutowireCapableObjectFactory.cs:938 
    Spring.Objects.Factory.Support.AbstractObjectFactory.CreateAndCacheSingletonInstance(String objectName, RootObjectDefinition objectDefinition, Object[] arguments) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\Support\AbstractObjectFactory.cs:2144 
    Spring.Objects.Factory.Support.WebObjectFactory.CreateAndCacheSingletonInstance(String objectName, RootObjectDefinition objectDefinition, Object[] arguments) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web\Objects\Factory\Support\WebObjectFactory.cs:299 
    Spring.Objects.Factory.Support.AbstractObjectFactory.GetObjectInternal(String name, Type requiredType, Object[] arguments, Boolean suppressConfigure) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\Support\AbstractObjectFactory.cs:2065 
    Spring.Objects.Factory.Support.AbstractObjectFactory.GetObject(String name) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\Support\AbstractObjectFactory.cs:1826 
    Spring.Objects.Factory.Support.DefaultListableObjectFactory.PreInstantiateSingletons() in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\Support\DefaultListableObjectFactory.cs:505 
    Spring.Context.Support.AbstractApplicationContext.Refresh() in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Context\Support\AbstractApplicationContext.cs:1017 
    Spring.Context.Support.MvcApplicationContext..ctor(MvcApplicationContextArgs args) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web.Mvc\Context\Support\MvcApplicationContext.cs:75 
    Spring.Context.Support.MvcApplicationContext..ctor(String name, Boolean caseSensitive, String[] configurationLocations) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web.Mvc\Context\Support\MvcApplicationContext.cs:47 
    _dynamic_Spring.Context.Support.MvcApplicationContext..ctor(Object[]) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web.Mvc\Context\Support\MvcApplicationContext.cs:50 
    Spring.Reflection.Dynamic.SafeConstructor.Invoke(Object[] arguments) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Reflection\Dynamic\DynamicConstructor.cs:116 
    Spring.Context.Support.RootContextInstantiator.InvokeContextConstructor(ConstructorInfo ctor) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Context\Support\ContextHandler.cs:563 
    Spring.Context.Support.ContextInstantiator.InstantiateContext() in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Context\Support\ContextHandler.cs:508 
    Spring.Context.Support.ContextHandler.InstantiateContext(IApplicationContext parentContext, Object configContext, String contextName, Type contextType, Boolean caseSensitive, String[] resources) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Context\Support\ContextHandler.cs:351 
    Spring.Context.Support.ContextHandler.Create(Object parent, Object configContext, XmlNode section) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Context\Support\ContextHandler.cs:289 

[ConfigurationErrorsException: Error creating context 'spring.root': Unable to open the database file] 
    System.Configuration.BaseConfigurationRecord.EvaluateOne(String[] keys, SectionInput input, Boolean isTrusted, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentResult) +199 
    System.Configuration.BaseConfigurationRecord.Evaluate(FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentResult, Boolean getLkg, Boolean getRuntimeObject, Object& result, Object& resultRuntimeObject) +1153 
    System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject) +1468 
    System.Configuration.BaseConfigurationRecord.GetSection(String configKey) +41 
    System.Web.HttpContext.GetSection(String sectionName) +52 
    System.Web.Configuration.HttpConfigurationSystem.GetSection(String sectionName) +57 
    System.Web.Configuration.HttpConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String configKey) +6 
    System.Configuration.ConfigurationManager.GetSection(String sectionName) +78 
    Spring.Util.ConfigurationUtils.GetSection(String sectionName) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Util\ConfigurationUtils.cs:71 
    Spring.Context.Support.WebApplicationContext.GetContextInternal(String virtualPath) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web\Context\Support\WebApplicationContext.cs:335 
    Spring.Context.Support.WebApplicationContext.GetRootContext() in c:\_prj\spring-net\trunk\src\Spring\Spring.Web\Context\Support\WebApplicationContext.cs:223 
    Spring.Context.Support.WebSupportModule.Init(HttpApplication app) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web\Context\Support\WebSupportModule.cs:175 
    System.Web.HttpApplication.InitModulesCommon() +172 
    System.Web.HttpApplication.InitModules() +43 
    System.Web.HttpApplication.InitInternal(HttpContext context, HttpApplicationState state, MethodInfo[] handlers) +828 
    System.Web.HttpApplicationFactory.GetNormalApplicationInstance(HttpContext context) +304 
    System.Web.HttpApplicationFactory.GetApplicationInstance(HttpContext context) +107 
    System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +327 

Answer 1

tôi đã làm một thử nghiệm nhanh với SQLite, Spring.Net và nó không thành công với các lỗi tương tự, tuy nhiên khi tôi sử dụng dấu gạch chéo thay vì backslashes trong chuỗi kết nối nó bắt đầu hoạt động một cách kỳ diệu.

<db:provider id="employeesDbProvider" 
    provider="SQLite-1.0.72" 
    connectionString="Data Source=c:/temp/Database/Sample.db3;Version=3;"> 
</db:provider> 

Edit: Tôi đã thử nghiệm một chút hơn nữa để tìm ra nơi các tập tin được lưu trữ nếu tôi sử dụng dấu chấm prefix ví dụ ./Employees.db3. Trong IISExpress nó được lưu trữ trong C:\Program Files (x86)\IIS Express nhiều khả năng không phải những gì bạn mong đợi.

Trong IIS7 nó chỉ đơn giản là không thành công với lỗi Unable to open the database file, ihmo vì nó cố gắng ghi vào thư mục Temporary ASP.NET Files.

Việc đặt cược an toàn nhất là sử dụng

<db:provider id="employeesDbProvider" 
    provider="SQLite-1.0.72" 
    connectionString="Data Source=|DataDirectory|Sample.db3;Version=3;"> 
</db:provider> 

Mà là thư mục App_Data của ứng dụng MVC của bạn.

Tôi đã sử dụng SQLite 1.0.80.0 cho các thử nghiệm của mình. Hãy nhớ rằng SQLite không tạo thư mục và cần quyền ghi ACL.