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我正在尝试为 BizTalk 2013 R2 中的 WCF 自定义 Oracle 发送端口设置操作系统身份验证。我可以使用 SQL Developer 中的 OS Auth 连接到 Oracle db（以我的 BizTalk 服务帐户登录时），Visual Studio 也可以使用 OS auth，因此我知道该帐户处于活动状态并且在 Oracle Db 中具有正确的权限。不幸的是，当我尝试查询数据库时，BizTalk 适配器会引发以下异常：

The adapter failed to transmit message going to send port "MySendPort" with URL "oracledb://MyTnsName". It will be retransmitted after the retry interval specified for this Send Port. Details:"Microsoft.ServiceModel.Channels.Common.ConnectionException: ORA-01017: invalid username/password; logon denied ---> Oracle.DataAccess.Client.OracleException: ORA-01017: invalid username/password; logon denied
   at Oracle.DataAccess.Client.OracleException.HandleErrorHelper(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, OpoSqlValCtx* pOpoSqlValCtx, Object src, String procedure, Boolean bCheck, Int32 isRecoverable)
   at Oracle.DataAccess.Client.OracleException.HandleError(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, Object src)
   at Oracle.DataAccess.Client.OracleConnection.Open()
   at Microsoft.Adapters.OracleCommon.OracleCommonConnectionWrapper..ctor(String connectionString, OracleCommonExecutionHelper executionHelper)
   at Microsoft.Adapters.OracleDB.OracleDBConnection.Microsoft.ServiceModel.Channels.Common.IConnection.Open(TimeSpan timeout)
   --- End of inner exception stack trace ---

Server stack trace: 
   at Microsoft.Adapters.OracleDB.OracleDBConnection.Microsoft.ServiceModel.Channels.Common.IConnection.Open(TimeSpan timeout)
   at Microsoft.ServiceModel.Channels.Common.Design.ConnectionPool.GetConnection(Guid clientId, TimeSpan timeout)
   at Microsoft.ServiceModel.Channels.Common.Design.ConnectionPool.GetConnectionHandler[TConnectionHandler](Guid clientId, TimeSpan timeout, MetadataLookup metadataLookup, String& connectionId)
   at Microsoft.ServiceModel.Channels.Common.Channels.AdapterRequestChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)

Exception rethrown at [0]: 
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at System.ServiceModel.ICommunicationObject.Open()
   at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.GetChannel[TChannel](IBaseMessage bizTalkMessage, ChannelFactory`1& cachedFactory)
   at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.SendMessage(IBaseMessage bizTalkMessage)".

如果我将用户名从“/”更改为本地 Oracle 帐户和密码，BizTalk 可以很好地查询数据库。

我同时安装了 ODAC 2.121.2.0 的 32 位和 64 位 oracle 12c 客户端。Oracle env 变量首先位于系统 PATH 变量中，并且我已将绑定重定向添加到 BizTalk 中的 Microsoft.Adapters.OracleDB.config 文件以引用较新的 ODAC 版本。

任何帮助，将不胜感激。

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