C# 在網絡路徑目錄上創建文件時訪問被拒絕

Question

編輯：所以我現在已經獲得了該網絡文件夾的服務帳戶“docwriter”和密碼“password”。 我創建了一個 class ConnectionToNetworkFolder 並嘗試了幾次嘗試使用它。 但仍然沒有成功。 我在嘗試將 pdf 文件保存在我的網絡路徑目錄中時遇到問題，但在保存到本地文件夾時工作正常。 見帖子底部，我包括了我的 class 和我的頁面

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原帖：我已經嘗試過之前顯示的幾個代碼。 我還更改了網絡文件夾的安全權限，添加了“網絡服務”（從在線），可以修改、讀取和執行、列出文件夾內容、讀取、寫入（我需要特殊權限還是完全控制？）。 我究竟做錯了什么？

***本地文件夾：成功

            Telerik.Reporting.Processing.ReportProcessor reportProcessor = new ReportProcessor();
            RenderingResult result = reportProcessor.RenderReport("PDF", instanceReportSource, null);

            string documentName = ProductionInstructionPrintPage.plantCode + ProductionInstructionPrintPage.machine + ProductionInstructionPrintPage.ordNum;
            string filePath = @"C:\Users\Lily\Desktop\SavingPdfTesting";
            string fileName = documentName + "." + result.Extension;
            string full_path = filePath + fileName;

            //writes the pdf to disk
            using (FileStream fs = new FileStream(full_path, FileMode.Create))
            {
                fs.Write(result.DocumentBytes, 0, result.DocumentBytes.Length);
            }

***網絡嘗試 1：失敗 - 訪問被拒絕

            Telerik.Reporting.Processing.ReportProcessor reportProcessor = new ReportProcessor();
            RenderingResult result = reportProcessor.RenderReport("PDF", instanceReportSource, null);

            string documentName = ProductionInstructionPrintPage.plantCode + ProductionInstructionPrintPage.machine + ProductionInstructionPrintPage.ordNum;
            string filePath = @"\\testing.company.com\reports\";
            string fileName = documentName + "." + result.Extension;
            string full_path = filePath + fileName;

            //writes the pdf to disk
            using (FileStream fs = new FileStream(full_path, FileMode.Create))
            {
                fs.Write(result.DocumentBytes, 0, result.DocumentBytes.Length);
            }

************************編輯************************* *****************

這是我的 ConnectionToNetworkFolder class：

class ConnectionToNetworkFolder : IDisposable
    {
        string _networkName;

        public ConnectionToNetworkFolder(string networkName, NetworkCredential credentials)
        {
            _networkName = networkName;


            var netResource = new NetResource()
            {
                Scope = ResourceScope.GlobalNetwork,
                ResourceType = ResourceType.Disk,
                DisplayType = ResourceDisplaytype.Share,
                RemoteName = networkName
            };

            var userName = string.IsNullOrEmpty(credentials.Domain)
                ? credentials.UserName
                : string.Format(@"{0}\{1}", credentials.Domain, credentials.UserName);

            var result = WNetAddConnection2(
                netResource,
                credentials.Password,
                userName,
                0);

            if (result != 0)
            {
                throw new Win32Exception(result, "Error connecting to remote share");
            }
        }

        ~ConnectionToNetworkFolder()
        {
            Dispose(false);
        }

        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }

        protected virtual void Dispose(bool disposing)
        {
            WNetCancelConnection2(_networkName, 0, true);
        }

        [DllImport("mpr.dll")]
        private static extern int WNetAddConnection2(NetResource netResource,
            string password, string username, int flags);

        [DllImport("mpr.dll")]
        private static extern int WNetCancelConnection2(string name, int flags,
            bool force);
    }

    [StructLayout(LayoutKind.Sequential)]
    public class NetResource
    {
        public ResourceScope Scope;
        public ResourceType ResourceType;
        public ResourceDisplaytype DisplayType;
        public int Usage;
        public string LocalName;
        public string RemoteName;
        public string Comment;
        public string Provider;
    }

    public enum ResourceScope : int
    {
        Connected = 1,
        GlobalNetwork,
        Remembered,
        Recent,
        Context
    };

    public enum ResourceType : int
    {
        Any = 0,
        Disk = 1,
        Print = 2,
        Reserved = 8,
    }

    public enum ResourceDisplaytype : int
    {
        Generic = 0x0,
        Domain = 0x01,
        Server = 0x02,
        Share = 0x03,
        File = 0x04,
        Group = 0x05,
        Network = 0x06,
        Root = 0x07,
        Shareadmin = 0x08,
        Directory = 0x09,
        Tree = 0x0a,
        Ndscontainer = 0x0b
    }

我的頁面：聲明憑證變量：

        NetworkCredential credentials = new NetworkCredential(@"docwriter", "password");

function 點擊事件：

   private void apprBtn_Click(object sender, EventArgs e)
        {
string documentName = Mainpage.apprDate;
            string filePath = @"\\testing.company.com\reports\";
            string fileName = documentName + "." + result.Extension;
            string full_path = filePath + fileName;


            using (new ConnectionToNetworkFolder(filePath, credentials))
            {

                    //writes the pdf to disk
                    using (FileStream fs = new FileStream(full_path, FileMode.Create))
                    {
                        fs.Write(result.DocumentBytes, 0, result.DocumentBytes.Length);
                    }

            }
}

Answer 1

檢查共享的權限。 正如您所說，您向“網絡服務”添加了權限，但是運行您的應用程序的用戶是什么？

Answer 2

我的猜測是您需要在服務器上模擬文件訪問。 在向網絡“寫入”時，您可能沒有足夠的共享權限。

這是一個關於如何模擬文件/文件夾訪問的示例。 它清楚地解釋了您需要做什么。
代碼項目 UNC 訪問