我正在使用Microsoft.Office.Interop.Excel.Workbooks.Open()方法打开 .XML 文件,然后使用Microsoft.Office.Interop.Excel.Workbook.ExportAsFixedFormat()方法发布(保存)打开的文件.XML 文件为 .PDF 文件。
现在在我的开发和预生产环境中,一切都运行良好,但在我们的生产服务器上,似乎当调用Microsoft.Office.Interop.Excel.Workbooks.Open()时,方法执行被停止甚至不执行。 . (W/O 任何我可以知道的异常或任何错误,即使不在我的日志文件或事件查看器中..),最终显然没有任何 .PDF 文件保存在任何地方。
这是我的代码:
using ExcelApp = Microsoft.Office.Interop.Excel;
public static void ToPdf()
{
// Declare the Excel Application object and set it in null state
ExcelApp.Application activeExcel = null;
// Declare the Workbook to be used within the Excel Application object
ExcelApp.Workbook openWorkBook = null;
// Used for passing parameter for the attribute of opening the .XML file
object tMiss = Type.Missing;
// .XML file location
string xmlPathName = "C:/Windows/Temp/XmlFile.xml";
try
{
// Instanitating the Excel.Application to a new valid Instance object
activeExcel = new ExcelApp.Application();
// Open Excel as Hiden
activeExcel.Visible = false;
// Open Excel w/o alerts
activeExcel.DisplayAlerts = false;
//
// Log this line
//
LogTxt.LogCreator("Set Excel GUI to be open Hiden with no Alerts");
// Open an Excel instance and passing the .XML file Path
openWorkBook = activeExcel.Workbooks.Open(xmlPathName, 0, false, tMiss, tMiss,
tMiss, true, tMiss, tMiss, tMiss,
true, tMiss, false, false);
//
// Log this line
//
LogTxt.LogCreator("Excel Application Opend");
// Publishing the opened workbook (.xml file) as .pdf file
openWorkBook.ExportAsFixedFormat(ExcelApp.XlFixedFormatType.xlTypePDF, pdfPathName);
//
// Log this line
//
LogTxt.LogCreator("Excel to .PDF published");
}
catch (Exception ee)
{
LogTxt.LogCreator(string.Format("Error is {0}", ee.InnerException.Message));
}
finally
{
// Flag for finding the Excel process or not
//bool foundExcel = false;
if (openWorkBook != null)
{
// Closing the workbook
openWorkBook.Close(false, tMiss, tMiss);
// here we say that this object is not going to be called anymore
Marshal.ReleaseComObject(openWorkBook);
}
if (activeExcel != null)
{
// Closing the Excel
activeExcel.Quit();
// here we say that this object is not going to be called anymore
Marshal.ReleaseComObject(activeExcel);
//
// Log this line
//
LogTxt.LogCreator("Excel Procces Closed");
}
GC.GetTotalMemory(false);
// Calling to GC go through all gen
GC.Collect();
// Stops the corrent thread untill the Finalizers empty the queue
GC.WaitForPendingFinalizers();
// Calling the GC to go through all gen
GC.Collect();
GC.GetTotalMemory(true);
}
注意 - 我正在登录到我的日志文件,以便能够查看部署后执行的代码行。
通过将 \Users 和网络服务用户添加到访问权限默认值以及启动和激活权限,我还确保我有权在组件服务管理下的 COM 安全选项卡中执行 COM 组件。
正如这里所解释的。
我要问的是,如果你们对理解 Open() 方法有什么问题有任何想法。