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Je suis nouveau dans .NET. J'ai utilisé Spring Framework et Hibernate auparavant en Java, mais c'est ma première en .NET. Pour développer mon application, j'utilise la solution Spring.Northwind comme exemple.Spring.NET - Référence d'objet non définie sur une instance d'un objet
La cartographie est mise en veille prolongée:
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
<class name="EMSApplication.Domain.Employee, EMSApplication.Domain" table="ems_Employees" proxy="EMSApplication.Domain.IEmployee, EMSApplication.Domain" lazy="true">
<id name="Id" type="System.Int32">
<column name="Id" not-null="true"/>
<generator class="native"/>
</id>
<property name="Username" type="System.String">
<column name="Username" not-null="true"/>
</property>
<property name="Firstname" type="System.String">
<column name="Firstname" not-null="true"/>
</property>
</class>
</hibernate-mapping>
Comme vous pouvez le voir le champ des employés de classe ne comporte que trois. Il implémente IEmployee qui consiste en la définition des méthodes get et set de ces champs (si vous voulez voir ces classes je peux fournir).
Maintenant, le web.config j'ai, je l'ai mis au printemps comme sectionGroup et défini comme:
<configSections>
<sectionGroup name="spring">
<section name="context" type="Spring.Context.Support.WebContextHandler, Spring.Web"/>
<section name="parsers" type="Spring.Context.Support.NamespaceParsersSectionHandler, Spring.Core"/>
</sectionGroup>
<section name="databaseSettings" type="System.Configuration.NameValueSectionHandler"/>
</configSections>
<spring>
<parsers/>
<context>
<resource uri="~/Web.xml"/>
</context>
</spring>
<databaseSettings>
<add key="db.datasource" value="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\JYM.mdf;Integrated Security=True;User Instance=True"/>
</databaseSettings>
Aussi j'ai ajouté Spring.Data.NHibernate.Support.OpenSessionInViewModule.SessionFactoryObjectName clé dans appsettings:
<appSettings>
<add key="Spring.Data.NHibernate.Support.OpenSessionInViewModule.SessionFactoryObjectName" value="NHibernateSessionFactory"/>
</appSettings>
Les httpModules du système .web a les entrées suivantes:
Et enfin le printemps ressources Web.xml a les objets suivants:
<object type="Spring.Objects.Factory.Config.PropertyPlaceholderConfigurer, Spring.Core">
<property name="ConfigSections" value="databaseSettings"/>
</object>
<db:provider id="DbProvider" provider="System.Data.SqlClient" connectionString="Data Source=|DataDirectory|\JYM.mdf"/>
<object id="NHibernateSessionFactory" type="Spring.Data.NHibernate.LocalSessionFactoryObject, Spring.Data.NHibernate32">
<property name="DbProvider" ref="DbProvider"/>
<property name="MappingResources">
<list>
<value>assembly://EMSApplication/Domain/EMSApplication.hbm.xml</value>
</list>
</property>
<property name="HibernateProperties">
<dictionary>
<entry key="hibernate.connection.provider" value="NHibernate.Connection.DriverConnectionProvider"/>
<entry key="dialect" value="NHibernate.Dialect.MsSql2008Dialect"/>
<entry key="connection.driver_class" value="NHibernate.Driver.SqlClientDriver"/>
<entry key="proxyfactory.factory_class" value="NHibernate.Bytecode.DefaultProxyFactoryFactory, NHibernate"/>
<entry key="show_sql" value="true"/>
<entry key="hbm2ddl.auto" value="update"/>
<entry key="cache.use_query_cache" value="true"/>
</dictionary>
</property>
<property name="ExposeTransactionAwareSessionFactory" value="true" />
</object>
<object id="transactionManager" type="Spring.Data.NHibernate.HibernateTransactionManager, Spring.Data.NHibernate32">
<property name="DbProvider" ref="DbProvider"/>
<property name="SessionFactory" ref="NHibernateSessionFactory"/>
</object>
<object type="Spring.Dao.Attributes.PersistenceExceptionTranslationPostProcessor, Spring.Data"/>
<object id="EmployeeDao" type="EMSApplication.NHibernate.HibernateEmployeeDao">
<property name="SessionFactory" ref="NHibernateSessionFactory"/>
</object>
<tx:attribute-driven transaction-manager="transactionManager"/>
Maintenant, quand je commence debug à partir de Visual Studio 2010 Je reçois
System.NullReferenceException: référence d'objet non définie à une instance d'un objet .
La trace complète de la pile est:
[NullReferenceException: Object reference not set to an instance of an object.]
System.Xml.XmlReader.CalcBufferSize(Stream input) +14
System.Xml.XmlTextReaderImpl.InitStreamInput(Uri baseUri, String baseUriStr, Stream stream, Byte[] bytes, Int32 byteCount, Encoding encoding) +66
System.Xml.XmlTextReaderImpl..ctor(String url, Stream input, XmlNameTable nt) +93
System.Xml.XmlTextReader..ctor(Stream input) +74
NHibernate.Cfg.Configuration.AddInputStream(Stream xmlInputStream, String name) in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs:631
[MappingException: Could not configure datastore from input stream ]
NHibernate.Cfg.Configuration.LogAndThrow(Exception exception) in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs:342
NHibernate.Cfg.Configuration.AddInputStream(Stream xmlInputStream, String name) in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs:641
NHibernate.Cfg.Configuration.AddInputStream(Stream xmlInputStream) in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs:611
Spring.Data.NHibernate.LocalSessionFactoryObject.AfterPropertiesSet() in c:\_prj\spring-net\trunk\src\Spring\Spring.Data.NHibernate20\Data\NHibernate\LocalSessionFactoryObject.cs:599
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 'NHibernateSessionFactory' defined in 'file [D:\Code\EMSApplication\EMSApplication\Web.xml] line 14' : Initialization of object failed : Could not configure datastore from input stream ]
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.GetObjectsOfType(Type type, Boolean includePrototypes, Boolean includeFactoryObjects) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\Support\DefaultListableObjectFactory.cs:770
Spring.Objects.Factory.ObjectFactoryUtils.ObjectsOfTypeIncludingAncestors(IListableObjectFactory factory, Type type, Boolean includePrototypes, Boolean includeFactoryObjects) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\ObjectFactoryUtils.cs:268
Spring.Dao.Support.PersistenceExceptionTranslationInterceptor.DetectPersistenceExceptionTranslators(IListableObjectFactory objectFactory) in c:\_prj\spring-net\trunk\src\Spring\Spring.Data\Dao\Support\PersistenceExceptionTranslationInterceptor.cs:155
Spring.Dao.Support.PersistenceExceptionTranslationInterceptor..ctor(IListableObjectFactory objectFactory) in c:\_prj\spring-net\trunk\src\Spring\Spring.Data\Dao\Support\PersistenceExceptionTranslationInterceptor.cs:73
Spring.Dao.Attributes.PersistenceExceptionTranslationAdvisor..ctor(IListableObjectFactory objectFactory, Type repositoryAttributeType) in c:\_prj\spring-net\trunk\src\Spring\Spring.Data\Dao\Attributes\PersistenceExceptionTranslationAdvisor.cs:63
Spring.Dao.Attributes.PersistenceExceptionTranslationPostProcessor.set_ObjectFactory(IObjectFactory value) in c:\_prj\spring-net\trunk\src\Spring\Spring.Data\Dao\Attributes\PersistenceExceptionTranslationPostProcessor.cs:95
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:1886
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:930
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.GetObjectsOfType(Type type, Boolean includePrototypes, Boolean includeFactoryObjects) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Objects\Factory\Support\DefaultListableObjectFactory.cs:770
Spring.Context.Support.AbstractApplicationContext.GetObjectsOfType(Type type, Boolean includePrototypes, Boolean includeFactoryObjects) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Context\Support\AbstractApplicationContext.cs:1383
Spring.Context.Support.AbstractApplicationContext.RegisterObjectPostProcessors(IConfigurableListableObjectFactory objectFactory) in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Context\Support\AbstractApplicationContext.cs:652
Spring.Context.Support.AbstractApplicationContext.Refresh() in c:\_prj\spring-net\trunk\src\Spring\Spring.Core\Context\Support\AbstractApplicationContext.cs:1000
Spring.Context.Support.WebApplicationContext..ctor(WebApplicationContextArgs args) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web\Context\Support\WebApplicationContext.cs:125
Spring.Context.Support.WebApplicationContext..ctor(String name, Boolean caseSensitive, String[] configurationLocations) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web\Context\Support\WebApplicationContext.cs:82
_dynamic_Spring.Context.Support.WebApplicationContext..ctor(Object[]) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web\Caching\AspNetCache.cs:126
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.WebContextHandler.InstantiateContext(IApplicationContext parent, Object configContext, String contextName, Type contextType, Boolean caseSensitive, String[] resources) in c:\_prj\spring-net\trunk\src\Spring\Spring.Web\Context\Support\WebContextHandler.cs:127
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': Could not configure datastore from input stream ]
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
Ici comme vous pouvez le voir:
[ObjectCreationException: objet la création d'erreur avec le nom 'NHibernateSessionFactory' défini dans le « fichier [D : \ Code \ EMSApplication \ EMSApplication \ Web.xml] ligne 14 ': L'initialisation de l'objet a échoué: Impossible de configurer la banque de données à partir du flux d'entrée ]
Donc, je suis incapable de comprendre comment résoudre ce problème. Toute aide ou suggestion que j'apprécie vraiment.
Merci.
NB: Je ne change pas les paramètres dans IIS 7.
Edit:
Ce sont les références utilisées:
