我使用企业库的ODP.NET和4.1版,而不是2008年。一切都很好。
现在,使用ODP.NET Oracle.DataAccess 4.112.2.0和企业库版本5.0.414.0以及2010,.net 4.0进行迁移。
Oracle.DataAccess 4.112.2.0 EnterpriseLibrary 5.0.414.0
在最近从Enterprise 4.1的4.1版升级到5.0之后,我们收到以下错误:
“无法构建数据库类型。您必须配置容器以提供此值。”
Microsoft.Practices.ServiceLocation.ActivationException:激活 尝试获取Database,key类型的实例时发生错误 “ConnectionStrings.Oracle.xxx”---> Microsoft.Practices.Unity.ResolutionFailedException:解析 依赖失败,type = “Microsoft.Practices.EnterpriseLibrary.Data.Database”,name = “ConnectionStrings.Oracle.xxx”。发生异常时:while 解析。例外情况是:InvalidOperationException - 类型数据库 无法建造。您必须配置容器以提供此功能 值。
参考EntLib论坛:http://entlib.codeplex.com/discussions/215290
关于它的任何解决方案??
我的配置
<configSections>
<section name="loggingConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.LoggingSettings, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=709072f976b4c05b"/>
<section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings,Microsoft.Practices.EnterpriseLibrary.Data, Version=5.0.414.0, Culture=neutral, PublicKeyToken=709072f976b4c05b" />
</configSections>
<dataConfiguration defaultDatabase="ConnectionStrings.Oracle.xxx"/>
<connectionStrings>
<add name="ConnectionStrings.Oracle.xxx" connectionString="DATA SOURCE=des;PASSWORD=zzz;PERSIST SECURITY INFO=True;USER ID=aaa;"
providerName="Oracle.DataAccess.Client" />
我的代码
var key = "ConnectionStrings.Oracle.xxx";
Database db = Microsoft.Practices.EnterpriseLibrary.Common.Configuration.EnterpriseLibraryContainer.Current.GetInstance<Database>(key); //~(EntLib 5 recommended)
using (DbCommand cm = db.GetStoredProcCommand("TBL_FRKDATA.TBL_FRKDATA_FND_ALL"))
{
cm.Parameters.Add(CreateCursorParameter("P_REFCURSOR"));
// Using "using" will cause both the DataReader and connection to be
// closed. (ExecuteReader will close the connection when the
// DataReader is closed.)
using (IDataReader dataReader = db.ExecuteReader(cm))
{
while (dataReader.Read())
{
builder.Add(dataReader);
}
return builder.EntityList;
}
}
完整错误堆栈跟踪
Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.GuardTypeIsNonPrimitive(IBuilderContext context,SelectedConstructor selectedConstructor) Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.PreBuildUp(IBuilderContext 上下文) Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext 上下文) Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlanCreatorPolicy.CreatePlan(IBuilderContext context,NamedTypeBuildKey buildKey) Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext 上下文) Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context)Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing,String name,IEnumerable
1 resolverOverrides) Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name, IEnumerable
1 resolverOverrides) Microsoft.Practices.Unity.UnityContainer.Resolve(Type t,String name, ResolverOverride [] resolverOverrides) Microsoft.Practices.Unity.UnityServiceLocator.DoGetInstance(类型 serviceType,String key) Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(类型 serviceType,String key) Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(类型 serviceType,String key) Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance [TService](字符串 键)
更新
此代码适用于我:
[TestMethod]
public void Conectar_con_EntLib_y_OdpNet_Test()
{
var key = "ConnectionStrings.Oracle.xxx";
string connectionString = ConfigurationManager.ConnectionStrings[key].ConnectionString;
string providerName = ConfigurationManager.ConnectionStrings[key].ProviderName;
//Database db = Microsoft.Practices.EnterpriseLibrary.Common.Configuration.EnterpriseLibraryContainer.Current.GetInstance<Database>(key);
TestContext.WriteLine("connectionString: " + connectionString);
TestContext.WriteLine("providerName: " + providerName);
DbProviderFactory factory = DbProviderFactories.GetFactory(providerName);
using (DbConnection connection = factory.CreateConnection())
{
connection.ConnectionString = connectionString;
connection.Open();
TestContext.WriteLine("Estado Conexión: " + connection.State);
connection.Close();
}
}
解决方案:由Randy Levy(http://entlib.codeplex.com/discussions/215290)
您不能将企业库OracleDatabase与Oracle.DataAccess.Client提供程序一起使用。内置的OracleDatabase是硬编码的 使用OracleClientFactory DbProviderFactory,而您想使用ODP.NET提供程序(Oracle.DataAccess.Client)。
最好的方法是使EntLibContrib Oracle ODP.NET数据提供程序正常工作,因为它应该支持您需要的所有内容,包括配置文件。
因为看起来你可以创建DbProviderFactory,你可以尝试将GenericDatabase与ODP.NET OracleClientFactory一起使用,但我猜想 您将遇到特定Oracle功能的问题(例如refcursor)。
您可以直接使用它:
string connectionString = ConfigurationManager.ConnectionStrings["Connection String"].ConnectionString;
string providerName = ConfigurationManager.ConnectionStrings["Connection String"].ProviderName;
DbProviderFactory factory = DbProviderFactories.GetFactory(providerName);
var db = new GenericDatabase(connectionString, factory);
答案 0 :(得分:2)
添加对
的引用Microsoft.Practices.EnterpriseLibrary.Common
Microsoft.Practices.EnterpriseLibrary.Data
Microsoft.Practices.ServiceLocation
然后使用此行获取数据库:
var database = EnterpriseLibraryContainer.Current.GetInstance<Database>();
此处有更多信息:http://devstuffs.wordpress.com/2012/03/13/enterprise-library-5-with-odp-net/
答案 1 :(得分:0)
我遇到了同样的问题并决定将应用程序池“启用32位应用程序”更改为true。