关于c#：ItextSharp找不到PDF

ItextSharp can't find PDF

我正在.net 3.5应用程序中使用itextsharp 5.4.5。从文件路径创建PdfReader对象时，出现文件未找到异常但文件存在的情况。我已经确认File.Open可以打开文件。测试代码：

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try
{
FileStream f = File.Open(Server.MapPath("~/App_Data/pdf/EC_1.0.pdf"), FileMode.Open);
f.Close();
f.Dispose();

PdfReader pdfReader = new PdfReader(Server.MapPath("~/App_Data/pdf/EC_1.0.pdf"));
pdfReader.Close();
pdfReader.Dispose();

Response.Write("Succeed");
}
catch (IOException cex)
{
Response.Write("Fail: Message:" + cex.Message.Replace("<","<").Replace(">",">") +
" Exception .ToString:" + cex.ToString().Replace("<","<").Replace(">",">") +
" Source:" + cex.Source +
" StackTrace:" + cex.StackTrace +
" TargetSite:" + cex.TargetSite);
}
catch (Exception cex)
{
Response.Write("Fail: Message:" + cex.Message.Replace("<","<").Replace(">",">") +
" Exception .ToString:" + cex.ToString().Replace("<","<").Replace(">",">") +
" Source:" + cex.Source +
" StackTrace:" + cex.StackTrace +
" TargetSite:" + cex.TargetSite);
}

异常详细信息：

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Message: C:\\inetpub\\wwwroot\\HepBnet\
esearch\\DataSystem\\App_Data\\pdf\\EC_1.0.pdf not found as file or resource.

Exception .ToString: System.IO.IOException: C:\\inetpub\\wwwroot\\HepBnet\
esearch\\DataSystem\\App_Data\\pdf\\EC_1.0.pdf not found as file or resource. at iTextSharp.text.io.RandomAccessSourceFactory.CreateByReadingToMemory(String filename) at iTextSharp.text.io.RandomAccessSourceFactory.CreateBestSource(String filename) at iTextSharp.text.pdf.PdfReader..ctor(String filename, Byte[] ownerPassword, Boolean partial) at iTextSharp.text.pdf.PdfReader..ctor(String filename) at ASP.errors_pdf_test_aspx.Page_Load()

Source: itextsharp

StackTrace: at iTextSharp.text.io.RandomAccessSourceFactory.CreateByReadingToMemory(String filename) at iTextSharp.text.io.RandomAccessSourceFactory.CreateBestSource(String filename) at iTextSharp.text.pdf.PdfReader..ctor(String filename, Byte[] ownerPassword, Boolean partial) at iTextSharp.text.pdf.PdfReader..ctor(String filename) at ASP.errors_pdf_test_aspx.Page_Load()

TargetSite: iTextSharp.text.io.IRandomAccessSource CreateByReadingToMemory(System.String)

我假设这是一个权限问题，但是它不应该使用与.net应用程序相同的用户吗？

我弄清楚了问题所在。由于某种原因，Web服务器正在"阻止" itext库。右键单击该库以访问属性，然后单击"取消阻止"，然后强制应用程序重新启动，从而解决了该问题。

我希望这对其他人有帮助...