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ORA-12520: TNS: 监听程序无法为请求的服务器类型找到可用的处理程序<br>

Server Error in '/' Application.

ORA-12520: TNS: 监听程序无法为请求的服务器类型找到可用的处理程序

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.OracleClient.OracleException: ORA-12520: TNS: 监听程序无法为请求的服务器类型找到可用的处理程序


Source Error:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

  <%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

Stack Trace: 


[OracleException (0x80131938): ORA-12520: TNS: 监听程序无法为请求的服务器类型找到可用的处理程序
]
   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +1065
   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +108
   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +125
   System.Data.OracleClient.OracleConnection.Open() +43
   wdlx.Gen.General.common.OaCommand..ctor(String sql, String insertstr, String ModuleName) +1715
   wdlx.Model.ui.UnicafePage.GetConfigValue(String WebconfigKeyName) in d:\newNet\zhongdianhuanbao\trunk\wdlx.Model\ui\UnicafePage.cs:1064
   wdlx.Model.ui.UnicafePage.GetConfigValue_Static(String WebconfigKeyName) in d:\newNet\zhongdianhuanbao\trunk\wdlx.Model\ui\UnicafePage.cs:1136
   wdlx.Web.PageBase..ctor() in d:\2021WORK\00_2021VSProject\NJzhongdian\wdlx.Web\Profile\PageBase.cs:49
   wdlx.Web.RAT.RatError..ctor() in d:\2021WORK\00_2021VSProject\NJzhongdian\wdlx.Web\NormalBid\RatError.aspx.cs:25
   ASP.normalbid_raterror_aspx..ctor() in c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\dc438dec\2ea64e52\App_Web_uqsrng3c.3.cs:0
   __ASP.FastObjectFactory_app_web_uqsrng3c.Create_ASP_normalbid_raterror_aspx() in c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\dc438dec\2ea64e52\App_Web_uqsrng3c.12.cs:0
   System.Web.Compilation.BuildResultCompiledType.CreateInstance() +32
   System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp) +109
   System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +31
   System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +40
   System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +167
   System.Web.HttpServerUtility.Execute(String path, TextWriter writer, Boolean preserveForm) +517

[HttpException (0x80004005): Error executing child request for /NormalBid/RatError.aspx.]
   System.Web.HttpServerUtility.Execute(String path, TextWriter writer, Boolean preserveForm) +816
   System.Web.HttpServerUtility.Transfer(String path, Boolean preserveForm) +57
   System.Web.HttpServerUtility.Transfer(String path) +32
   wdlx.Model.ui.UnicafePage.GotoErrorPage(String errorMessage) in d:\newNet\zhongdianhuanbao\trunk\wdlx.Model\ui\UnicafePage.cs:226
   wdlx.Web.ForePage.Skin.Detail.InitPage() in d:\2021WORK\00_2021VSProject\NJzhongdian\wdlx.Web\ForePage\Skin\Detail.aspx.cs:44
   wdlx.Web.ForePage.Skin.Detail.Page_Load(Object sender, EventArgs e) in d:\2021WORK\00_2021VSProject\NJzhongdian\wdlx.Web\ForePage\Skin\Detail.aspx.cs:31
   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.EventHandler.Invoke(Object sender, EventArgs e) +0
   System.Web.UI.Control.OnLoad(EventArgs e) +91
   wdlx.Web.PageBase.OnLoad(EventArgs e) in d:\2021WORK\00_2021VSProject\NJzhongdian\wdlx.Web\Profile\PageBase.cs:158
   System.Web.UI.Control.LoadRecursive() +74
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1040