我製作了一個filewatcher服務，該服務讀取放入目錄中的每個XML文件並在標籤上打印內容（Visual Studio 2012，Report viewer 2010）。服務在Windows 8上正常工作，但在服務器2008 R2上，每當我複製目錄中的文件時，都會發生崩潰。Server 2008上的Windows filewatcher服務崩潰
public partial class MyService : ServiceBase
{
public MyService()
{
InitializeComponent();
GetSourcePath();
}
private void GetSourcePath()
{
RegistryKey myKey = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Company\\MyService", false);
if (myKey == null)
{
fsw.Path = @"C:\Source\";
}
else
{
fsw.Path = (string)myKey.GetValue("SourcePath");
}
}
protected override void OnStart(string[] args)
{
base.OnStart(args);
fsw.EnableRaisingEvents = true;
}
protected override void OnPause()
{
base.OnPause();
fsw.EnableRaisingEvents = false;
}
protected override void OnContinue()
{
base.OnContinue();
GetSourcePath();
fsw.EnableRaisingEvents = true;
}
private void fsw_Created(object sender, FileSystemEventArgs e)
{
System.Threading.Thread.Sleep(2000);
ReportViewer reportViewer = new ReportViewer();
reportViewer.ProcessingMode = ProcessingMode.Local;
reportViewer.LocalReport.ReportPath = @"rptLabel.rdlc";
reportViewer.LocalReport.DataSources.Add(new ReportDataSource("DataSet", PrintLabel.GetPrintLabels(e.FullPath)));
reportViewer.RefreshReport();
AutoPrint.Export(reportViewer.LocalReport);
AutoPrint.Print();
}
protected override void OnStop()
{
fsw.EnableRaisingEvents = false;
}
}
這裏爲其他類
public class AutoPrint
{
private static int m_currentPageIndex;
private static IList<Stream> m_streams;
public static Stream CreateStream(string name, string fileNameExtension, Encoding encoding, string mimeType, bool willSeek)
{
Stream stream = new MemoryStream();
m_streams.Add(stream);
return stream;
}
public static void Export(LocalReport report)
{
string deviceInfo =
@"<DeviceInfo>
<OutputFormat>EMF</OutputFormat>
<PageWidth>10cm</PageWidth>
<PageHeight>4cm</PageHeight>
<MarginTop>0</MarginTop>
<MarginLeft>0</MarginLeft>
<MarginRight>0</MarginRight>
<MarginBottom>0</MarginBottom>
</DeviceInfo>";
Warning[] warnings;
m_streams = new List<Stream>();
try
{
report.Render("Image", deviceInfo, CreateStream, out warnings);
}
catch (Exception exc)
{
System.Diagnostics.EventLog.WriteEntry("My Service", DateTime.Now.ToLongTimeString() + " Error rendering print : " + exc.Message);
foreach (Stream stream in m_streams)
{
stream.Position = 0;
}
}
}
public static void Print()
{
PrintDocument printDoc = new PrintDocument();
if(printDoc.PrinterSettings.IsDefaultPrinter) printDoc.PrinterSettings.PrinterName = "Printer Name";
if (m_streams == null || m_streams.Count == 0) System.Diagnostics.EventLog.WriteEntry("MyService", DateTime.Now.ToLongTimeString() + " Error: no stream to print.");
if (!printDoc.PrinterSettings.IsValid)
{
System.Diagnostics.EventLog.WriteEntry("MyService", DateTime.Now.ToLongTimeString() + " Error: cannot find the default printer.");
}
else
{
printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
m_currentPageIndex = 0;
printDoc.Print();
}
}
public static void PrintPage(object sender, PrintPageEventArgs ev)
{
try
{
Metafile pageImage = new Metafile(m_streams[m_currentPageIndex]);
// Adjust rectangular area with printer margins.
Rectangle adjustedRect = new Rectangle(
ev.PageBounds.Left - (int)ev.PageSettings.HardMarginX,
ev.PageBounds.Top - (int)ev.PageSettings.HardMarginY,
ev.PageBounds.Width,
ev.PageBounds.Height);
// Draw a white background for the report
ev.Graphics.FillRectangle(Brushes.White, adjustedRect);
// Draw the report content
ev.Graphics.DrawImage(pageImage, adjustedRect);
// Prepare for the next page. Make sure we haven't hit the end.
m_currentPageIndex++;
ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
}
catch (Exception exc)
{
System.Diagnostics.EventLog.WriteEntry("MyService", DateTime.Now.ToLongTimeString() + " Error rendering print page: " + exc.Message + "Inner exception :" + exc.InnerException);
}
}
}
還有一個靜態類printLabel的DATAS，但沒有什麼有趣的這種情況下的代碼。它只加載數據。 這裏是從日誌事件
應用所述第一錯誤消息：MyService.exe Framework版本：v4.0.30319 描述：過程終止由於未處理的異常。 異常信息信息：System.IO.FileNotFoundException 堆棧： 在MyService.MyService.fsw_Created（System.Object的，System.IO.FileSystemEventArgs） 在System.IO.FileSystemWatcher.OnCreated（System.IO.FileSystemEventArgs） 的系統。 IO.FileSystemWatcher.NotifyFileSystemEventArgs（的Int32，System.String） 在System.IO.FileSystemWatcher.CompletionStatusChanged（UInt32的，UInt32的，System.Threading.NativeOverlapped *） 在System.Threading._IOCompletionCallback.PerformIOCompletionCallback（UInt32的，UInt32的，的System.Threading .NativeOverlapped *）
此處來自事件日誌的第二條消息
錯誤的應用程序名：MyService.exe，版本：1.0.0.0，時間戳：0x51349c1b 錯誤模塊名稱：KERNELBASE.dll，版本：6.1.7601.17932，時間戳：0x50327672 異常代碼：0xe0434352 故障偏移：0x0000c41f 斷裂作用進程ID：0x2dc4 錯誤應用程序開始時間：0x01ce18d947393653 錯誤的應用程序路徑：C：\ Program Files文件（x86）\ Company \ MyService \ MyService.exe 錯誤模塊路徑：C：\ Windows \ syswow64 \ KERNELBASE.dll 報告ID ：a27c24e2-84cc-11e2-bb34-0019992623e2
我做了與控制檯相同的應用程序，它完美的工作。也許該服務沒有權利rea d文件？我有人有一個想法...