在SharePoint 2010中阅读文档时遇到ComException

我在网站集中部署了webpart。

该webpart尝试读取文档库中文档的内容。 它在SharePoint 2007中工作正常。但这在SharePoint 2010中不起作用。如果文档大小很小，则它的工作正常。 否则我会得到以下异常。

Microsoft.SharePoint.SPException: Cannot open file "Document library/MyDoc-FAQ.doc". ---> System.Runtime.InteropServices.COMException (0x81070211): Cannot open file "Document library/MyOffice-FAQ.doc". at Microsoft.SharePoint.Library.SPRequestInternalClass.GetFileAsStream(String bstrUrl, String bstrWebRelativeUrl, Boolean bHonorLevel, Byte iLevel, OpenBinaryFlags grfob, String bstrEtagNotMatch, String& pEtagNew, String& pContentTagNew) at Microsoft.SharePoint.Library.SPRequest.GetFileAsStream(String bstrUrl, String bstrWebRelativeUrl, Boolean bHonorLevel, Byte iLevel, OpenBinaryFlags grfob, String bstrEtagNotMatch, String& pEtagNew, String& pContentTagNew) --- End of inner exception stack trace --- at Microsoft.SharePoint.SPGlobal.HandleComException(COMException comEx) at Microsoft.SharePoint.Library.SPRequest.GetFileAsStream(String bstrUrl, String bstrWebRelativeUrl, Boolean bHonorLevel, Byte iLevel, OpenBinaryFlags grfob, String bstrEtagNotMatch, String& pEtagNew, String& pContentTagNew) at Microsoft.SharePoint.SPFile.GetFileStreamCore(OpenBinaryFlags openOptions, String etagNotMatch, String& etagNew, String& contentTagNew) at Microsoft.SharePoint.SPFile.GetFileStream(OpenBinaryFlags openOptions, String etagNotMatch, String& etagNew, String& contentTagNew) at Microsoft.SharePoint.SPFile.OpenBinaryStream() at MyComp.Plugin.Office.MyOffice.handleEdit(HtmlTextWriter writer, NameValueCollection querystring)Message isCannot open file "Document library/MyDoc-FAQ.doc". source is Microsoft.SharePoint 

示例代码

  using (SPSite siteCol = new SPSite(siteurl))
            {
                using (SPWeb oWebsite = siteCol.OpenWeb())
                {
                    oWebsite.AllowUnsafeUpdates = true;

                    SPFolder folder = oWebsite.GetFolder(folderurl);
                    SPFileCollection files = folder.Files;

                    SPFile file = files[filename];
                     Stream stream = file.OpenBinaryStream();
                     byte[] content = null;
                     BinaryReader reader = new BinaryReader(stream);

                     content = reader.ReadBytes((int)file.Length);//If the document size is higher, i am getting exception

                     oWebsite.AllowUnsafeUpdates = false;

                  }


            }    

文件大小超过100kb时发生错误。 请帮我解决这个问题

在SharePoint日志中，我得到了以下异常

   at Microsoft.SharePoint.CoordinatedStreamBuffer.SPBackgroundSqlFileFiller.StartNextFill(SPInterval iNext)     at Microsoft.SharePoint.CoordinatedStreamBuffer.SPBackgroundFileFiller.DoNextOperation()     at Microsoft.SharePoint.CoordinatedStreamBuffer.SPBackgroundFileFiller.Fill()     at Microsoft.SharePoint.CoordinatedStreamBuffer.SPCoordinatedStreamBufferFactory.CreateFromDocParams(SqlSession session, Guid guidSiteId, Int32 grfDocFlags, Int64 cbContent, SPChunkedArray`1 rgbContent, Byte[] rgbRbsId, Guid guidDoc, Int32 iInternalVersion, Int32 pageSize, Boolean bStartFilling)     at Microsoft.SharePoint.CoordinatedStreamBuffer.SPCoordinatedStreamBufferFactory.CreateFromDocumentRowset(SqlSession session, Object[] row, SPDocumentBindRequest& dbreq, SPDocumentBindResults& dbres)     at Micr... 1cc7f9da-32ed-4446-aaa7-8bc6dd4cd635
10/14/2010 19:27:18.77* w3wp.exe (0x1F28)                           0x1ED0  SharePoint Foundation           Database                        fa46    High        ...osoft.SharePoint.Library.SPRequestInternalClass.GetFileAsStream(String bstrUrl, String bstrWebRelativeUrl, Boolean bHonorLevel, Byte iLevel, OpenBinaryFlags grfob, String bstrEtagNotMatch, String& pEtagNew, String& pContentTagNew)     at Microsoft.SharePoint.Library.SPRequest.GetFileAsStream(String bstrUrl, String bstrWebRelativeUrl, Boolean bHonorLevel, Byte iLevel, OpenBinaryFlags grfob, String bstrEtagNotMatch, String& pEtagNew, String& pContentTagNew)     at Microsoft.SharePoint.SPFile.GetFileStreamCore(OpenBinaryFlags openOptions, String etagNotMatch, String& etagNew, String& contentTagNew)     at Microsoft.SharePoint.SPFile.GetFileStream(OpenBinaryFlags openOptions, String etagNotMatch, String& etagNew, String& contentTagNew)     at Microsoft.SharePoint.SPFile.OpenBinary(SPOpenBinary...  1cc7f9da-32ed-4446-aaa7-8bc6dd4cd635
10/14/2010 19:27:18.77* w3wp.exe (0x1F28)                           0x1ED0  SharePoint Foundation           Database                        fa46

我有这个相同的问题......原来这是一个鬼。 我可以在文档库（在这种情况下是xslt）中看到该文件，并且可以在“管理所有内容”中看到它，但是当我使用URL导航到文件时，IIS不会提供该文件。 我是服务器上的管理员，所以它不应该是权限问题。

我只是通过重新上传文件（相同的名称和属性）来解决问题 - 突然我的System.Runtime.InteropServices.COMException（0x81070211）：无法打开文件错误消失了。

给它，让我知道它是否适合你。

丰富

两件事情：

或者，只需使用下面的代码（从我的头顶开始）

byte[] content = file.OpenBinary();

尝试在打开之前检出文件。 如上所述处理流。