未找到oracle 客户端和网络组件"问题详

本文介绍了解决在使用Oracle 9.2客户端软件与IIS结合时出现的连接错误的方法。该错误通常发生在安装了Oracle 9.2的NTFS格式分区系统上,涉及对ORACLE_HOME目录权限进行调整。

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http://blog.youkuaiyun.com/hongyihua/article/details/2347025

   今天在测试ASP.NET程序,在连接ORACLE数据库时报出了“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”的错误。可我本机上确确实实已经装了Oracle Client,而且在我本机上运行时也正常,一旦通过IIS发布,在运行时就会报上述错误。通过查找网络资料,该问题已经成功解决。现将解决过程发布,供大家参考。

      首先,把可能出现该问题的情况简单阐述一下:a:Oracle 9.02i 版的问题b:是NTFS格式分区造成的。Oracle公司对此问题也给出了描述:Problem Description ------------------- When running an application that connects to Oracle and uses the Authenticated User privilege (such as Microsoft’s Internet Information Server (IIS)) via Oracle’s 9.2 client software and any of these programmatic interfaces 1. Oracle Provider for OLE DB  2. Microsoft OLE DB Provider for Oracle  3. Oracle ODBC Driver  4. Microsoft ODBC for Oracle  5. Oracle Objects for OLE (OO4O)  you will receive one of the following errors:  (1) Oracle Provider for OLE DB Error Type: Microsoft OLE DB Service Components (0x80070005) Access is denied.  (2) Microsoft OLE DB Provider for Oracle Error Type: Microsoft OLE DB Provider for Oracle (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. Or Error Type: Microsoft OLE DB Provider for Oracle (0x80004005) Oracle error occurred, but error message could not be retrieved from Oracle.  (3) Oracle ODBC Driver Error Type: Microsoft OLE DB Provider for ODBC Drivers (0x80004005) Specified driver could not be loaded due to system error 5 (Oracle in OraHome92).  (4) Microsoft ODBC for Oracle The Oracle(tm) client and networking components were not found. These components are supplied by Oracle Corporation and are part of the Oracle Version 7.3 (or greater) client software installation. You will be unable to use this driver until these components have been installed.  (5) Oracle Objects for OLE (a) while using a GLOBAL.ASA file Error Type: Active Server Pages (0x0) An error occurred while creating object ’OraSession’. (b) not using a GLOBAL.ASA file Error Type: Microsoft VBScript runtime (0x800A0046)Permission denied: ’CreateObject’ (6) Other miscellaneous errors (a) The Specified Module Could Not Be Found

        接着,我们来解决此问题,方法很简单,找到ORACLE_HOME文件夹,右击—〉属性—〉安全,选Authenticated Users,查看它的属性,将Read and Execute的勾先去掉(默认情况下该勾是选中的),在勾上,然后重新启动你的机器,在运行程序,该问题就成功解决了。ORACLE公司也给出了解决方案:Solution Description -------------------- You need to give the Authenticated User privilege to the Oracle Home by following these steps: 1. Log on to Windows as a user with Administrator privileges. 2. Launch Windows Explorer from the Start Menu and and navigate to the ORACLE_HOME directory. 3. Right-click on the ORACLE_HOME folder and choose the "Properties" option from the drop down list. A "Properties" window should appear. 4. Click on the "Security" tab on the "Properties" window. 5. Click on "Authenticated Users" item in the "Name" list (on Windows XP the "Name" list is called "Group or user names"). 6. Uncheck the "Read and Execute" box in the "Permissions" list (on Windows XP the "Permissions" list is called "Permissions for Authenticated Users"). This box will be under the "Allow" column. 7. Check the "Read and Execute" box. This is the box you just unchecked. 8. Click the "Apply" button. 9. Click the "OK" button. 10. You may need to reboot your computer after these changes have been made. Re-execute the application and it should now work. Explanation ----------- If you install Oracle9i Release 2 (9.2.0.1) on a computer running Windows with an NTFS partition, the contents of ORACLE_HOME directory will not be visible to users who are authenticated on that machine. These permissions were not set properly when the software was installed. Applications that were working fine with previous versions of Oracle software will stop working when they upgrade to Oracle 9.2. NOTE: The application will continue to work if the user has logged onto the machine as an Administrator. Any application that is using the Authenticated User privilege will not work. A notable example would be IIS which might service some of the requests based on the Authenticated User privileges. To demonstrate the problem in further detail, you can log on to the operating system as an authenticated machine user. You won’t be able browse the contents of the ORACLE_HOME directory demonstrating your inability to load any Oracle DLLs or make a connection. References ---------- Bug:2498880 - Oracle 9I Release 2 Installation Issue on Windows 2000 NTFS File System Additional Search Words ----------------------- OLEDB

         需要注意的是:在XP系统下,属性中可能找不到安全选项卡,如何去解决呢?很简单,打开一个窗体,选择“工具”—〉文件夹选项...—〉查看,将使用简单文件共享前的勾去掉,确认即可(如下图)。

 

<think>嗯,用户遇到了System.Exception错误,提示未找到Oracle客户端网络组件,需要8.1.7或更高版本。首先,我需要回忆一下这个错误的常见原因解决方法。根据引用[4],可能需要安装正确的Oracle客户端版本,并配置环境变量。用户提到Oracle 7.3.3,但系统要求至少8.1.7,所以首先应该建议安装更高版本的客户端,比如11g或12c。然后,检查PATH环境变量是否正确包含客户端的路径,特别是bin目录。另外,32位64位的问题也可能导致此错误,需要确保应用程序的平台与客户端版本一致。还有可能需要配置权限,比如赋予NETWORK SERVICE用户对Oracle目录的读取权限。此外,如果用户使用的是旧版本的.NET Framework,可能需要切换到ODP.NET或者其他数据提供程序。最后,验证安装是否成功,可以通过简单的连接测试来确认。需要一步步引导用户完成这些检查,并确保每个步骤都清晰易懂。</think>### 分步解决方案:解决“未找到Oracle客户端网络组件”错误 #### 1. 安装Oracle客户端软件 - **原因分析**:错误提示明确指出需要Oracle客户端版本**8.1.7或更高**,而当前系统未安装或版本不兼容[^1][^4]。 - **操作步骤**: 1. 下载Oracle Instant Client(轻量级客户端)或完整版客户端: - 推荐版本:**Oracle 11g/12c/19c**(根据应用需求选择) - 下载地址:[Oracle官网下载页](https://www.oracle.com/database/technologies/instant-client/downloads.html) 2. 安装时需注意: - 若应用程序为32位,需安装**32位客户端**; - 若为64位,则安装64位客户端[^3][^4]。 #### 2. 配置环境变量 - **关键路径**:确保客户端安装路径(如`C:\Oracle\instantclient_19_3`)添加到系统环境变量`PATH`中。 - **验证方法**: ```powershell echo %PATH% # 检查是否包含Oracle客户端路径 ``` #### 3. 设置系统权限 - **问题场景**:若客户端文件权限不足,可能导致组件无法被访问。 - **解决方案**: - 右键Oracle客户端安装目录 → 属性 → 安全 → 添加用户`NETWORK SERVICE`并赋予**读取执行权限**。 #### 4. 检查Oracle网络配置 - **配置文件**:在客户端目录中创建`tnsnames.ora`,并配置数据库连接信息: ``` ORCL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 数据库服务器IP)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = ORCL) ) ) ``` #### 5. 更换数据访问驱动 - **替代方案**:若使用旧版`System.Data.OracleClient`,建议迁移至官方推荐的**ODP.NET**(Oracle Data Provider): ```powershell Install-Package Oracle.ManagedDataAccess.Core -Version 3.21.80 # NuGet安装 ``` #### 6. 验证安装结果 - **测试代码**:使用C#连接测试: ```csharp using Oracle.ManagedDataAccess.Client; var connString = "User Id=用户名;Password=密码;Data Source=ORCL"; using (var conn = new OracleConnection(connString)) { conn.Open(); // 成功则无报错 } ``` ### 相关问题§§ 1. 如何区分Oracle客户端32位还是64位? 2. 使用ODP.NET相比旧版驱动有哪些优势? 3. Oracle Instant Client完整版客户端的区别是什么?
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