Impossibile aprire il database (sqlite) nell'appp.net mvc3 utilizzando spring.net

Question

Sto scrivendo un'applicazione web asp.net mvc3. Voglio usare un database SQLite. Sfortunatamente ricevo un SqliteException che dice "impossibile aprire il database".

Primavera-Version: 1.3.2

NHibernate-Versione: 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() 

Ho persino provato a impostare DataSource su un percorso assoluto (C: \ temp \ database \ Employees.db3) ma viene generata la stessa SqLiteException.

Aggiornamento:

Stacktrace riportati a pagina di errore:

[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

Ho fatto una prova veloce con SQLite, Spring.Net e viene a mancare con lo stesso errore, ma quando ho usato barre invece di backslash nella stringa di connessione inizia magicamente a funzionare.

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

Edit: ho provato un po 'più per scoprire dove il file viene memorizzato se uso il punto di prefisso per esempio ./Employees.db3. In IISExpress è archiviato in C:\Program Files (x86)\IIS Express molto probabilmente non è quello che ti aspettavi.

In IIS7 fallisce semplicemente con l'errore Unable to open the database file, ihmo perché tenta di scrivere nella cartella Temporary ASP.NET Files.

La scommessa più sicura è quella di utilizzare

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

Quale è la cartella App_Data dell'applicazione MVC.

Ho utilizzato SQLite 1.0.80.0 per i miei test. Tenere presente che SQLite non crea la directory e ha bisogno dei diritti di scrittura ACL.