Question

使用从1.1框架转换而来的Visual Studio 2008的C＃asp.net Web应用程序。

我在aspx文件中使用文件上传控件，在按钮点击时将单个文件上传到服务器。这还包含两种方法：1）将文件上载到SharePoint 2007库; 2）使用上传文件的路径和文件名更新sql数据库。

以下代码在本地开发计算机上的Visual Studio中进行调试时成功运行，或者如果我远程进入部署了它的开发服务器计算机。当我从客户端计算机浏览器运行Web应用程序时，上载到SharePoint失败的UploadFileToSharePoint（）方法，但上传到本地并更新到db确实成功。

我不明白为什么它在本地运行但在部署后只能部分工作。我在服务器部署设置中遗漏了什么吗？我正在使用Windows身份验证。

Error Details:

Message: Object reference not set to an instance of an object., 
Source: App_Web_jybzycof, 
TargetSite: Void UploadFileToSharePoint(System.String, System.String), 
StackTrace: at ASP.fileupload_aspx.UploadFileToSharePoint(String UploadedFilePath, String SharePointPath) in c:\inetpub\wwwroot\webappTest\FileUpload.aspx:line 123 at ASP.fileupload_aspx.btnUploadFile_Click(Object sender, EventArgs e) in c:\inetpub\wwwroot\webappTest\FileUpload.aspx:line 64,
uploadedFilePath: C:\folder1\folder2\folder3\uploads\, 
sharePointListPath: http://server/site/subsite/library


protected void btnUploadFile_Click(object sender, EventArgs e)
    {   
        string strFilenameToUpload = string.Empty;

        //check if file was selected to upload
        if (FileUpload1.HasFile)
            try
            {
               //get file name
               strFilenameToUpload = FileUpload1.FileName;  

//Save selected file into specified location 
                FileUpload1.SaveAs(uploadedFilePath + FileUpload1.FileName);                


                Label1.Text = "<br />Success! <br /> <br />" +
                    "File name: [" + FileUpload1.FileName + "] " + "was uploaded to  <a href='http://server/site/subsite/library/'>SharePoint.</a>" + 
                     "<br />" +
                     "File size: " + FileUpload1.PostedFile.ContentLength + " bytes<br />" + 
                     "Content type: " + FileUpload1.PostedFile.ContentType; 


                //establish url for this upload
                strDocumentUrlToUpload = sharePointListPath + "/" + FileUpload1.FileName;      

                UploadFileToSharePoint(
                    uploadedFilePath + FileUpload1.FileName,
                    sharePointListPath + FileUpload1.FileName);

            }
            catch (Exception ex)
            {
                Label1.Text = "ERROR Message: " + ex.Message.ToString() + 
", Source:  " + ex.Source + 
", TargetSite: " + ex.TargetSite + ", StackTrace: " + ex.StackTrace +
", uploadedFilePath: " + uploadedFilePath + 
               ", sharePointListPath: " + sharePointListPath; 

            }
        else
        {
            Label1.Text = "You have not specified a file.";
        }

        //Save SharePoint path, filename to database
        SqlConnLib updater = new SqlConnLib();
        updater.UpdateFileinfo(strDocumentUrlToUpload, strFilenameToUpload);  
    }

    protected void UploadFileToSharePoint(string UploadedFilePath,string SharePointPath)
    {
        WebResponse response = null;

        try
        {
            // Create a PUT Web request to upload the file to SharePoint
            WebRequest request = WebRequest.Create(SharePointPath);

            request.Credentials = CredentialCache.DefaultCredentials;
            request.Method = "PUT";

            // Allocate a 1K buffer to transfer the file contents.
            byte[] buffer = new byte[1024];

            // Write the contents of the local file to the request stream.
            using (Stream stream = request.GetRequestStream())

            using (FileStream fsWorkbook = File.Open(UploadedFilePath,FileMode.Open, FileAccess.Read))
            {
                int i = fsWorkbook.Read(buffer, 0, buffer.Length);

                while (i > 0)
                {
                    stream.Write(buffer, 0, i);
                    i = fsWorkbook.Read(buffer, 0, buffer.Length);
                }
            }

            // Make the PUT request.
            response = request.GetResponse();

        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            response.Close();
        }               
    }          

    </script>

更新：由于这没有提示任何回复 - 我会分享我从研究中学到的东西。我了解到解决方案是编写自定义Web服务以从远程服务器上传到SharePoint 2007 。有一个OOB SharePoint Web服务但它只能从一个SharePoint安装复制到另一个 - 它不能从远程（非SP安装）服务器工作到SP。客户端对象模型是一种可行的技术，但它不适用于SP 2007.（它应该适用于SP 2010和我假设2013）。通过Google搜索可以找到大量的解决方案/示例，但大多数都没有告诉您它们不能远程工作 - 它们只能在应用程序从安装它的同一服务器运行时才能工作。

目前，我将上传到服务器作为解决方案。然后在升级SharePoint安装后修改应用程序。

在服务器上部署应用程序时，c＃asp.net程序文件上载到SharePoint 2007失败

0 个答案: