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再会,

我正在开发使用 NHibernate + ODP.NET 托管驱动程序的 ac# 应用程序,应用程序在连接期间抛出异常:

[06.12.2013 12:29:33:324] NHibernate.Exceptions.GenericADOException : could not execute query
   at NHibernate.Loader.Loader.ListIgnoreQueryCache(ISessionImplementor session, QueryParameters queryParameters)
   at NHibernate.Loader.Criteria.CriteriaLoader.List(ISessionImplementor session)
   at NHibernate.Impl.SessionImpl.List(CriteriaImpl criteria, IList results)
   at NHibernate.Impl.CriteriaImpl.List(IList results)
   at NHibernate.Impl.CriteriaImpl.List[T]()
   ...
[Inner Exception] System.ArgumentNullException : Parameter '' cannot be null.
Parameter name: serializationStream
   at OracleInternal.ConnectionPool.PoolManager`3.CreateNewPR(Int32 reqCount, Boolean bForPoolPopulation, ConnectionString csWithDiffOrNewPwd, String instanceName)
   at OracleInternal.ConnectionPool.PoolManager`3.Get(ConnectionString csWithDiffOrNewPwd, Boolean bGetForApp, String affinityInstanceName, Boolean bForceMatch)
   at OracleInternal.ConnectionPool.OraclePoolManager.Get(ConnectionString csWithNewPassword, Boolean bGetForApp, String affinityInstanceName, Boolean bForceMatch)
   at OracleInternal.ConnectionPool.OracleConnectionDispenser`3.Get(ConnectionString cs, PM conPM, ConnectionString pmCS, SecureString securedPassword, SecureString securedProxyPassword)
   at Oracle.ManagedDataAccess.Client.OracleConnection.Open()
   at NHibernate.Connection.DriverConnectionProvider.GetConnection()
   at NHibernate.AdoNet.ConnectionManager.GetConnection()
   at NHibernate.AdoNet.AbstractBatcher.Prepare(IDbCommand cmd)
   at NHibernate.AdoNet.AbstractBatcher.ExecuteReader(IDbCommand cmd)
   at NHibernate.Loader.Loader.GetResultSet(IDbCommand st, Boolean autoDiscoverTypes, Boolean callable, RowSelection selection, ISessionImplementor session)
   at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies)
   at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies)
   at NHibernate.Loader.Loader.DoList(ISessionImplementor session, QueryParameters queryParameters)

软件版本:

Oracle Database 11g 企业版 11.2.0.1.0 - 64 位生产

ODP.NET 托管驱动程序版本 121.1.1

使用其他 oracle 数据库:“Oracle Database 11g Release 11.2.0.3.0 - 64bit Production”工作正常!

使用 Oracle ODP.NET 非托管它也可以正常工作!使用 Oracle 客户端 (System.Data.OracleClient) 也可以正常工作!

可能有人知道如何解决这个问题?谢谢!

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1 回答 1

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问题出在非标准数据库编码中。要解决此问题,您应该在数据库中使用标准编码(将数据库中的非标准编码转换为标准 (UTF8))。

于 2013-12-23T07:44:49.563 回答