Question

我想将我的webapplication中的oledb连接（msdaora.dll）连接到oracle。

我使用：

IIS 7.5
64 bit windows server 2008 r2 enterprise.
64 bit oracle 11g
32 bit oracle client

visual studio 2010
32bit msdaora.dll
my aplication is .aspx

我的错误是什么：

Server Error in '/PPIGanTT' Application.
--------------------------------------------------------------------------------

Oracle client and networking components were not found. These components are supplied by Oracle Corporation and are part of the Oracle Version 7.3.3 or later client software installation.

Provider is unable to function until these components are installed. 
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.Data.OleDb.OleDbException: Oracle client and networking components were not found. These components are supplied by Oracle Corporation and are part of the Oracle Version 7.3.3 or later client software installation.

Provider is unable to function until these components are installed.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  

Stack Trace: 


[OleDbException (0x80004005): Oracle client and networking components were not found. These components are supplied by Oracle Corporation and are part of the Oracle Version 7.3.3 or later client software installation.

Provider is unable to function until these components are installed.]
   System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) +351
   System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) +86
   System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) +31
   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +76
   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +126
   System.Data.OleDb.OleDbConnection.Open() +43
   csOra.OpenCnn() +47
   csOra..ctor(String sTnsName, String sUserId, String sPassword) +273
   _Default.Page_Load(Object sender, EventArgs e) +8801
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
   System.Web.UI.Control.OnLoad(EventArgs e) +91
   System.Web.UI.Control.LoadRecursive() +74
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207

我之前尝试的是：

在iis中，我将enable32applications更改为true。

2--将我的连接类型从oledb更改为oracle.data.access，但它也不起作用。

3--我想找到64位msdaora.dll，但我找不到它。

我该怎么做才能解决此错误？感谢。

Answer 1

我有类似的问题。根本问题是我的平台目标是Any CPU。有两种解决方案对我有用：

将平台目标更改为您在目标上的现有（且唯一）oracle客户端的CPU，在您的情况下为x86，或
安装了缺少的oracle客户端，msdora.dll for x64。

我认为IIS正在决定它将使用哪个（x86或x64）msdora.dll，因为Any CPU平台目标编译。您必须取消IIS的选择或提供所有答案。

Answer 2

对我来说，这是在PATH环境变量上切换项目的问题。即我把它放在：C：\ Oracle \ product \ 11.2 \ bin;在此之前：C：\ Oracle \ product \ 12.1.0 \ dbhome_1 \ bin; 对于不同的公司，这些路径部分将有所不同。然后需要记住将PATH上的项目重新切换回使用Oracle 12。

OleDbException（0x80004005）：找不到Oracle客户端和网络组件。我怎样才能解决这个问题？

2 个答案: