No se puede abrir la base de datos (sqlite) en la aplicación asp.net mvc3 usando spring.net

Question

Estoy escribiendo una aplicación web asp.net mvc3. Quiero usar una base de datos sqlite. Desgraciadamente, recibo una SqliteException que dice "no se puede abrir la base de datos".

primavera-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() 

Incluso traté de configurar el DataSource en una ruta de acceso absoluta (C: \ temp \ database \ Employees.db3) pero se lanzó la misma SqLiteException.

Actualización:

StackTrace muestra en la página de error:

[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

Hice una prueba rápida con SQLite, Spring.Net y falla con el mismo error, sin embargo cuando utilicé barras en lugar de barras invertidas en la cadena de conexión mágicamente comienza a funcionar.

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

Editar: Probé un poco más lejos para averiguar dónde se almacena el archivo si uso el punto de prefijo, por ejemplo, ./Employees.db3. En IISExpress se almacena en C:\Program Files (x86)\IIS Express muy probablemente no sea lo que esperaba.

En IIS7 simplemente falla con el error Unable to open the database file, ihmo porque intenta escribir en la carpeta Temporary ASP.NET Files.

La apuesta más segura es utilizar

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

¿Cual es la carpeta App_Data de su aplicación MVC.

Utilicé SQLite 1.0.80.0 para mis pruebas. Tenga en cuenta que SQLite no crea el directorio y necesita derechos de escritura ACL.