ASP.NET 上傳文件到共享文件夾

建立共享文件夾參考資料：http://www.javashuo.com/article/p-tmxswefv-hw.html

上傳文件代碼

　　web.config　　

    <!--上傳文件配置,UploadPath值必定是服務器ip，內網ip最好-->
    <add key="UploadPath" value="\\172.21.0.10\File" />
    <add key="DownloadPath" value="http://x.x.x.x:80/" />
    <add key="UserName" value="ShareUser" />
    <add key="Password" value="P@ssw0rd" />

　　工具方法　　

        public static string GetConfigString(string key, string @default = "") { return ConfigurationManager.AppSettings[key] ?? @default; } /// <summary>
    /// 根據文件名（包含文件擴展名）獲取要保存的文件夾名稱 /// </summary>
    public class FileHelper { /// <summary>
        /// 根據文件名（包含文件擴展名）獲取要保存的文件夾名稱 /// </summary>
        /// <param name="fileName">文件名（包含文件擴展名）</param>
        public static string GetSaveFolder(string fileName) { var fs = fileName.Split('.'); var ext = fs[fs.Length - 1]; var str = string.Empty; var t = ext.ToLower(); switch (t) { case "jpg": case "jpeg": case "png": case "gif": str = "images"; break; case "mp4": case "mkv": case "rmvb": str = "video"; break; case "apk": case "wgt": str = "app"; break; case "ppt": case "pptx": case "doc": case "docx": case "xls": case "xlsx": case "pdf": str = "file"; break; default: str = "file"; break; } return str; } } /// <summary>
    /// 記錄日誌幫助類 /// </summary>
    public class WriteHelper { public static void WriteFile(object data) { try { string path = $@"C:\Log\"; var filename = $"Log.txt"; if (!Directory.Exists(path)) Directory.CreateDirectory(path); TextWriter tw = new StreamWriter(Path.Combine(path, filename), true); //true在文件末尾添加數據
 tw.WriteLine($"----產生時間：{DateTime.Now:yyyy-MM-dd HH:mm:ss}---------------------------------------------------------------------"); tw.WriteLine(data.ToJson()); tw.Close(); } catch (Exception e) { } } }

 

　　常量

    /// <summary>
    /// 文件上傳配置項 /// </summary>
    public class FileUploadConst { /// <summary>
        /// 上傳地址 /// </summary>
        public static string UploadPath => ConfigHelper.GetConfigString("UploadPath"); /// <summary>
        /// 文件訪問/下載地址 /// </summary>
        public static string DownloadPath => ConfigHelper.GetConfigString("DownloadPath"); /// <summary>
        /// 訪問共享目錄用戶名 /// </summary>
        public static string UserName => ConfigHelper.GetConfigString("UserName"); /// <summary>
        /// 訪問共享目錄密碼 /// </summary>
        public static string Password => ConfigHelper.GetConfigString("Password"); }

　　具體上傳文件代碼

        /// <summary>
        /// 上傳文件到共享文件夾 /// </summary>
        [HttpPost, Route("api/Upload/UploadAttachment")] [AllowAnonymous] public ServiceResponse<UploadRespModel> UploadAttachment() { var viewModel = new UploadRespModel(); var code = 200; var msg = "上傳失敗!"; var path = FileUploadConst.UploadPath; //@"\\172.16.10.130\Resource";
            var s = connectState(path, FileUploadConst.UserName, FileUploadConst.Password); if (s) { var filelist = HttpContext.Current.Request.Files; if (filelist.Count > 0) { var file = filelist[0]; var fileName = file.FileName; var blobName = FileHelper.GetSaveFolder(fileName); path = $@"{path}\{blobName}\"; fileName = $"{DateTime.Now:yyyyMMddHHmmss}{fileName}"; //共享文件夾的目錄
                    var theFolder = new DirectoryInfo(path); var remotePath = theFolder.ToString(); Transport(file.InputStream, remotePath, fileName); viewModel.SaveUrl = $"{blobName}/{fileName}"; viewModel.DownloadUrl = PictureHelper.GetFileFullPath(viewModel.SaveUrl); msg = "上傳成功"; } } else { code = CommonConst.Code_OprateError; msg = "連接服務器失敗"; } return ServiceResponse<UploadRespModel>.SuccessResponse(msg, viewModel, code); } /// <summary>
        /// 鏈接遠程共享文件夾 /// </summary>
        /// <param name="path">遠程共享文件夾的路徑</param>
        /// <param name="userName">用戶名</param>
        /// <param name="passWord">密碼</param>
        private static bool connectState(string path, string userName, string passWord) { bool Flag = false; Process proc = new Process(); try { proc.StartInfo.FileName = "cmd.exe"; proc.StartInfo.UseShellExecute = false; proc.StartInfo.RedirectStandardInput = true; proc.StartInfo.RedirectStandardOutput = true; proc.StartInfo.RedirectStandardError = true; proc.StartInfo.CreateNoWindow = true; proc.Start(); string dosLine = "net use " + path + " " + passWord + " /user:" + userName; WriteHelper.WriteFile($"dosLine:{dosLine}"); proc.StandardInput.WriteLine(dosLine); proc.StandardInput.WriteLine("exit"); while (!proc.HasExited) { proc.WaitForExit(1000); } string errormsg = proc.StandardError.ReadToEnd(); proc.StandardError.Close(); WriteHelper.WriteFile($"errormsg:{errormsg}"); if (string.IsNullOrEmpty(errormsg)) { Flag = true; } else { throw new Exception(errormsg); } } catch (Exception ex) { WriteHelper.WriteFile(ex); throw ex; } finally { proc.Close(); proc.Dispose(); } return Flag; } /// <summary>
        /// 向遠程文件夾保存本地內容，或者從遠程文件夾下載文件到本地 /// </summary>
        /// <param name="inFileStream">要保存的文件的路徑，若是保存文件到共享文件夾，這個路徑就是本地文件路徑如：@"D:\1.avi"</param>
        /// <param name="dst">保存文件的路徑，不含名稱及擴展名</param>
        /// <param name="fileName">保存文件的名稱以及擴展名</param>
        private static void Transport(Stream inFileStream, string dst, string fileName) { WriteHelper.WriteFile($"目錄-Transport：{dst}"); if (!Directory.Exists(dst)) { Directory.CreateDirectory(dst); } dst = dst + fileName; if (!File.Exists(dst)) { WriteHelper.WriteFile($"文件不存在，開始保存"); var outFileStream = new FileStream(dst, FileMode.Create, FileAccess.Write); var buf = new byte[inFileStream.Length]; int byteCount; while ((byteCount = inFileStream.Read(buf, 0, buf.Length)) > 0) { outFileStream.Write(buf, 0, byteCount); } WriteHelper.WriteFile($"保存完成"); inFileStream.Flush(); inFileStream.Close(); outFileStream.Flush(); outFileStream.Close(); } }