“/”应用程序中的服务器错误。

未将对象引用设置到对象的实例。

说明: 执行当前 Web 请求期间,出现未经处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。

源错误:

执行当前 Web 请求期间生成了未经处理的异常。可以使用下面的异常堆栈跟踪信息确定有关异常原因和发生位置的信息。

堆栈跟踪:


[NullReferenceException: 未将对象引用设置到对象的实例。]
   MySql.Data.MySqlClient.MySqlConnection.HandleTimeoutOrThreadAbort(Exception ex) +282
   MySql.Data.MySqlClient.MySqlDataReader.Read() +79
   Dapper.d__62`1.MoveNext() in F:\太阳成集团tyc234cc(中国)科技有限公司\中普\太阳成集团tyc234cc(中国)科技有限公司\0.Libraries\SqlMapper\SqlMapper.cs:1636
   System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) +246
   System.Linq.Enumerable.ToList(IEnumerable`1 source) +61
   Dapper.SqlMapper.Query(IDbConnection cnn, String sql, Object param, IDbTransaction transaction, Boolean buffered, Nullable`1 commandTimeout, Nullable`1 commandType) in F:\太阳成集团tyc234cc(中国)科技有限公司\中普\太阳成集团tyc234cc(中国)科技有限公司\0.Libraries\SqlMapper\SqlMapper.cs:1509
   JWCMS.MysqlDAL.ContentDAL.ReadListUnion(Int32 id) in E:\维护需要用的文件\zhongpujishu\code\1.Service\JWCMS.MysqlDAL\ContentDAL.cs:112
   JWCMS.Business.ContentBLL.Read(Int32 id, String[]& prev, String[]& next) in F:\太阳成集团tyc234cc(中国)科技有限公司\中普\太阳成集团tyc234cc(中国)科技有限公司\1.Service\JWCMS.Business\ContentBLL.cs:63
   JWCMS.Page.Controllers.HomeController.Detail(Int32 id, Nullable`1 Page) in F:\太阳成集团tyc234cc(中国)科技有限公司\中普\太阳成集团tyc234cc(中国)科技有限公司\2.Client\JWCMS.Web\Page\Controllers\HomeController.cs:768
   lambda_method(Closure , ControllerBase , Object[] ) +146
   System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +14
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +182
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27
   System.Web.Mvc.Async.<>c__DisplayClass42.b__41() +28
   System.Web.Mvc.Async.<>c__DisplayClass8`1.b__7(IAsyncResult _) +10
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +50
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +32
   System.Web.Mvc.Async.<>c__DisplayClass39.b__33() +58
   System.Web.Mvc.Async.<>c__DisplayClass4f.b__49() +228
   System.Web.Mvc.Async.<>c__DisplayClass37.b__36(IAsyncResult asyncResult) +10
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +50
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +34
   System.Web.Mvc.Async.<>c__DisplayClass2a.b__20() +24
   System.Web.Mvc.Async.<>c__DisplayClass25.b__22(IAsyncResult asyncResult) +99
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +50
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +27
   System.Web.Mvc.<>c__DisplayClass1d.b__18(IAsyncResult asyncResult) +14
   System.Web.Mvc.Async.<>c__DisplayClass4.b__3(IAsyncResult ar) +16
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +50
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +36
   System.Web.Mvc.Async.<>c__DisplayClass4.b__3(IAsyncResult ar) +16
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +50
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +26
   System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +10
   System.Web.Mvc.<>c__DisplayClass8.b__3(IAsyncResult asyncResult) +25
   System.Web.Mvc.Async.<>c__DisplayClass4.b__3(IAsyncResult ar) +16
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +50
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +28
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9847493
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +50
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +163


版本信息: Microsoft .NET Framework 版本:4.0.30319; ASP.NET 版本:4.8.4110.0