Server Error in '/productshow' Application.

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Line 27:     var gsid = yixiangProductshow.GsID;//公司的id
Line 28:     var cpid = yixiangProductshow.ID;//产品的id
Line 29:     tang_zhaoshang tangZhaoshang = TangZhaoshangSvr.Instance.GetItemByuser_id(gsid);
Line 30:     string beijingclass = "http://cc.tangjiu.com/v/skins/red/style.css?v=1";
Line 31:     if (tangZhaoshang != null)

[Win32Exception (0x80004005): 星光彩票网站-星空彩票-星空彩票官方网址]

[SqlException (0x80131904): Connection Timeout Expired.  The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement.  This could be because the pre-login handshake failed or the server was unable to respond back in time.  The duration spent while attempting to connect to this server was - [Pre-Login] initialization=3; handshake=19990; ]
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +353
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +118
   System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +268
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +315
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +128
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +265
   System.Data.SqlClient.SqlConnection.Open() +133
   IBatisNet.DataMapper.SqlMapSession.OpenConnection(String connectionString) +419

[DataMapperException: Unable to open connection to "Microsoft SQL Server, provider V2.0.0.0 in framework .NET V2.0".]
   IBatisNet.DataMapper.SqlMapSession.OpenConnection(String connectionString) +986
   IBatisNet.DataMapper.Commands.DbCommandDecorator.System.Data.IDbCommand.ExecuteReader() +35
   IBatisNet.DataMapper.MappedStatements.MappedStatement.RunQueryForObject(RequestScope request, ISqlMapSession session, Object parameterObject, T resultObject) +97
   IBatisNet.DataMapper.MappedStatements.CachingStatement.ExecuteQueryForObject(ISqlMapSession session, Object parameterObject, T resultObject) +387
   IBatisNet.DataMapper.MappedStatements.CachingStatement.ExecuteQueryForObject(ISqlMapSession session, Object parameterObject) +76
   IBatisNet.DataMapper.SqlMapper.QueryForObject(String statementName, Object parameterObject) +314
   TjCom.Dao.Service.TangZhaoshangSvr.GetItemByuser_id(Int32 userId) in D:\糖玖网络\公司项目\tangjiu.comWap\tangjiu.com.dao\TjCom.Dao\TjCom.Dao\Service\tang_zhaoshangSvr.cs:49
   ASP._Page_Views_Shared_ProductDetails__details_layout_cshtml.Execute() in d:\wangyongpeng\chanpinku\0.0.4\Views\Shared\ProductDetails\_details_layout.cshtml:29
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +255
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +158
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +123
   System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData) +149
   ASP._Page_Views_Home_ProductDetails_cshtml.Execute() in d:\wangyongpeng\chanpinku\0.0.4\Views\Home\ProductDetails.cshtml:17
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +255
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +158
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +108
   System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +371
   System.Web.Mvc.<>c__DisplayClass1a.<InvokeActionResultWithFilters>b__17() +31
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +434
   System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult) +189
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +53
   System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult) +27
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +25
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +67
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +25
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +53
   System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult) +41
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +25
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +53
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +431
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +75
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +158