使用ODP.NET 64位的.NET Web服务

Question

我在.net4.0中创建了一个Web服务。 它通过ODP.NET4连接到oracle数据库。 仅供参考，我使用了ODAC112021Xcopy_X64并安装了odp4和asp4。 该服务在开发环境中运行良好。

但是将其发布到在同一台计算机上运行的IIS之后，出现以下异常：

System.ServiceModel.FaultException`1 was unhandled
  Message=Could not load file or assembly 'Oracle.DataAccess, Version=2.112.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
  Source=mscorlib
  StackTrace:
    Server stack trace: 
       at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
       at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
       at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
       at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
       at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
    Exception rethrown at [0]

我使用64位odp.net，我在64位Windows Server 2008 R2上运行，并在Visual Studio中切换到64位。

谁能告诉我我缺少什么或做错了什么？

我还尝试将ORACLE.DATACCESS.dll复制到bin文件夹。

提前致谢

Answer 1

检查编译器计算机（32/64位）中的ODAC目标平台是否与放置Web服务的生产服务器相同。

Answer 2

由于无法重新创建问题，因此此操作是黑暗的，但是在IIS中运行时，您需要确保所使用的特定框架（这里为4.0）的信任级别可以访问适当的dll和文件。

您可以卸载/重新安装odp位，或直接在％ora_home \\ product \\ 11.2.0 \\ client_1 \\ odp.net \\ bin \\ 4 \\ OraProvCfg.exe中调用“ oracle权限”软件

另外，请检查自述文件（特别是此部分）：％ora_home \\ product \\ 11.2.0 \\ client_1 \\ odp.net \\ doc \\ readme.txt（这是我认为您可能感兴趣的简介）

==============================
ORACLEPERMISSION RELATED NOTES
==============================

1. Configuring OraclePermission for Web Applications in high or medium trust

For Web Applications operating under high or medium trust, OraclePermission 
needs to be configured in the appropriate "web_<trust level>.config"  file so 
that the application does not encounter any security errors.  This 
configuration can be done through the OracProvCfg tool. OraProvCfg.exe will
make the appropriate entries in both web_hightrust.config as well as 
web_mediumtrust.config associated with the specified .NET framework version. 

Given below is an example on the usage of OraProvCfg tool for configuring 
OraclePermission in a .NET 2.0 web application:

    OraProvCfg.exe /action:config  /product:odp /component:oraclepermission 
                   /frameworkversion:v4.0.30319
                   /providerpath:<Oracle.DataAccess.dll full path>

On running the above command, The following entry will be made in  
"web_hightrust.config" and  "web_mediumtrust.config" under ASP.NET permissionset

<IPermission class="Oracle.DataAccess.Client.OraclePermission, Oracle.DataAccess, Version=4.112.2.50, Culture=neutral, PublicKeyToken=89b483f429c47342" version="1" Unrestricted="true" />

OraProvCfg can also be used to remove these entries from these config files 
when they need to be removed.

    OraProvCfg.exe /action:unconfig  /product:odp  /component:oraclepermission
                   /frameworkversion:v4.0.30319
                   /providerpath:<Oracle.DataAccess.dll full path>


2. Configuring OraclePermission For Windows Applications in partial trust

For Windows applications operating in a partial trust environment, the 
OraclePermission entry should be specified under the appropriate permission 
set in security.config file. (Security.config is available in 
%windir%\Microsoft.NET\Framework\{version}\CONFIG). The example below 
specifies the OraclePermission entry that would be required for a .NET 2.0 
Windows application

<IPermission class="Oracle.DataAccess.Client.OraclePermission, Oracle.DataAccess, Version=4.112.2.50, Culture=neutral, PublicKeyToken=89b483f429c47342" version="1" Unrestricted="true" />

专门检查那些配置文件（“ web_hightrust.config ”和“ web_mediumtrust.config ”），以搜索相似的条目

<IPermission class="Oracle.DataAccess.Client.OraclePermission,
Oracle.DataAccess, Version=4.112.2.50, Culture=neutral,
PublicKeyToken=89b483f429c47342" version="1" Unrestricted="true" />

（此自述文件来自EF的Beta 3，因此我希望版本号有所不同）

您也可以查看此论坛（它看起来类似于此思路） https://forums.oracle.com/forums/thread.jspa?threadID=575320

hth