Question

在我的Windows服务代码中，我有一个try catch块。当我在数据库上的开发机器上运行单元测试时，单元测试通过。

当服务在具有相同数据库的生产服务器上运行时，会发生错误，并且Windows事件日志中会出现两个事件。

EventType clr20r3, P1 MKG.XPREFLIGHT.servicehost.exe, P2 2.0.62.0, 
P3 574a1457, P4 mscorlib, P5 4.0.0.0, P6 53b50a71, P7 3e5, P8 10d, 
P9 system.formatexception, P10 NIL.

和

Event Type: Error
Event Source:   .NET Runtime
Event Category: None
Event ID:   1026
Date:       29/05/2016
Time:       8:03:54 AM
User:       N/A
Computer:   SERVERX1
Description:
Application: MKG.XPREFLIGHT.ServiceHost.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.Reflection.TargetInvocationException
Stack:
   at System.RuntimeMethodHandle._InvokeMethodFast(System.IRuntimeMethodInfo, System.Object, System.Object[], System.SignatureStruct ByRef, System.Reflection.MethodAttributes, System.RuntimeType)
   at System.RuntimeMethodHandle.InvokeMethodFast(System.IRuntimeMethodInfo, System.Object, System.Object[], System.Signature, System.Reflection.MethodAttributes, System.RuntimeType)
   at System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo, Boolean)
   at System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo)
   at System.Reflection.MethodBase.Invoke(System.Object, System.Object[])
   at MKG.XPREFLIGHT.Engine.FlightEngine.ParseCommand(MKG.ServiceData.EngineCommandQueue)
   at MKG.XPREFLIGHT.Engine.FlightEngine.TakeCommands()
   at MKG.XPREFLIGHT.Engine.FlightEngine.PollingProc(System.Object)
   at System.Threading._TimerCallback.TimerCallback_Context(System.Object)
   at System.Threading.ExecutionContext.runTryCode(System.Object)
   at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode, CleanupCode, System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading._TimerCallback.PerformTimerCallback(System.Object)

我隔离了发生错误的代码区域，但由于单元测试通过，我无法理解错误发生的原因。

错误是可重复的，尽管在服务器重启后第一次进程运行时，故障不会发生在同一个地方。

代码在Try Catch块中，但它不会被捕获。相反，服务在Windows事件日志中停止并出现错误。

我该如何解决这个问题？ [更新]

失败的代码是

public Job GetDeepJobWithUploadInfo(int jobId)
{
 // if I throw an error here it is caught
    Job job = null;

    using (var connect = MakeConnect())
    {

        job =
            connect.job.AsNoTracking()
                .Include(
                    j =>
                        j.VivUpload.Select(
                            u =>
                                u.VivSplitUpload.Select(
                                    s =>
                                        s.VivSplitProfile.Select(
                                            p => p.VivSplitLog.Select(l => l.VivSplitLogType)))))
                .Include(j => j.VivUpload.Select(u => u.VivSplitUpload.Select(s => s.VivSplitProfile)))
                .Include(j => j.JobTag)
                .SingleOrDefault(j => j.JobID == jobId);
    }
     // never gets to here in production, but does get here in unit test
    return job;
}

我尝试在edmx上运行自定义工具来重新生成Entity Framework类。

由于未处理的异常，该过程终止

0 个答案: