经过广泛的谷歌搜索后，我似乎无法找到解决此问题的方法。简而言之，我在 MVC/Web API 应用程序中使用带有 EF 6 的 Oracle 托管数据访问客户端。
当我在本地运行时，我可以成功调用 Web API 2 控制器中的各种操作。没问题。
当我发布到我们的登台服务器时，我立即收到此错误：
“消息：底层提供程序在打开时失败。-Inner:Oracle.ManagedDataAccess.Client.OracleException (0x80004005): ORA-01017: 用户名/密码无效；在 OracleInternal.ConnectionPool.PoolManager 处登录被拒绝\r\n
显然，当我在本地运行时，用户名/密码很好，所以我觉得我错过了将它们放入我的 web.config 中的某个位置。
这是我的网络配置，您可以看到我使用整个 TNS 字符串作为连接字符串中的数据源值。如果我不这样做，登台站点会显示错误 - TNS:could not resolve the connect identifier specified
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<section name="oracle.manageddataaccess.client" type="OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.121.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342" />
</configSections>
<connectionStrings>
<add name="EISContext" connectionString="metadata=res://*/EISModel.csdl|res://*/EISModel.ssdl|res://*/EISModel.msl;provider=Oracle.ManagedDataAccess.Client;provider connection string="DATA SOURCE=(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = 123.west.dc) (PORT = 1540)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = tst)));PASSWORD=password;USER ID=username"" providerName="System.Data.EntityClient" />
</connectionStrings>
<appSettings>
<add key="webpages:Version" value="3.0.0.0" />
<add key="webpages:Enabled" value="false" />
<add key="ClientValidationEnabled" value="true" />
<add key="UnobtrusiveJavaScriptEnabled" value="true" />
</appSettings>
<system.data>
<DbProviderFactories>
<remove invariant="Oracle.DataAccess.Client" />
<add name="Oracle Data Provider for .NET" invariant="Oracle.DataAccess.Client" description="Oracle Data Provider for .NET" type="Oracle.DataAccess.Client.OracleClientFactory, Oracle.DataAccess" />
<remove invariant="Oracle.ManagedDataAccess.Client" />
<add name="ODP.NET, Managed Driver" invariant="Oracle.ManagedDataAccess.Client" description="Oracle Data Provider for .NET, Managed Driver" type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess" />
</DbProviderFactories>
</system.data>
<system.web>
<compilation debug="true" targetFramework="4.5.1" />
<httpRuntime />
<pages controlRenderingCompatibilityVersion="4.0" />
</system.web>
<system.webServer>
<handlers>
<remove name="ExtensionlessUrlHandler-Integrated-4.0" />
<remove name="OPTIONSVerbHandler" />
<remove name="TRACEVerbHandler" />
<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
</system.webServer>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed" />
<bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Optimization" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="1.1.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
</dependentAssembly>
<dependentAssembly>
<publisherPolicy apply="no" />
<assemblyIdentity name="Oracle.ManagedDataAccess" publicKeyToken="89b483f429c47342" culture="neutral" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<oracle.manageddataaccess.client>
<version number="*">
<dataSources>
<dataSource alias="SampleDataSource" descriptor="(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = 123.west.dc) (PORT = 1540)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = tst)))" />
</dataSources>
<settings>
<setting name="DbNotificationPort" value="-1" />
<setting name="NAMES.DIRECTORY_PATH" value="(TNSNAMES, EZCONNECT)" />
<setting name="TNS_ADMIN" value="C:\Oracle\product\11.2.0\client_2\network\admin"/>
<setting name="FetchSize" value="1048576" />
</settings>
</version>
</oracle.manageddataaccess.client>
<system.codedom>
<compilers>
<compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701" />
<compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\"Web\" /optionInfer+" />
</compilers>
</system.codedom>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="Oracle.ManagedDataAccess.Client" type="Oracle.ManagedDataAccess.EntityFramework.EFOracleProviderServices, Oracle.ManagedDataAccess.EntityFramework, Version=6.121.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342" />
</providers>
</entityFramework>
</configuration>