ASP.NET 上传文件到共享文件夹的示例

跳舞の芒果 · 发表于 2021-7-25 20:50:18

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- 　　web.config　" A' m& c! O6 O e' R3 Y' R) V
- 　　工具方法　　0 I& h! l2 D* c% ^
- 　　常量, T9 J( g1 ] H3 ^
- 　　具体上传文件代码
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创建共享文件夹参考资料

上传文件代码

　　web.config　

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　　工具方法　　

public static string GetConfigString(string key, string @default = "") { return ConfigurationManager.AppSettings[key] ?? @default; } /// /// 根据文件名（包含文件扩展名）获取要保存的文件夹名称 /// public class FileHelper { /// /// 根据文件名（包含文件扩展名）获取要保存的文件夹名称 /// /// 文件名（包含文件扩展名） 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; } } /// /// 记录日志帮助类 /// public class WriteHelper { public static void WriteFile(object data) { try { string path = $@"C:\Log"; var filename = $"Log.txt"; if (!Directory.Exists(path)) Directory.CreateDirectory(path); TextWriter tw = new StreamWriter(Path.Combine(path, filename), true); //true在文件末尾添加数据 tw.WriteLine($"----产生时间：{DateTime.Now:yyyy-MM-dd HH:mm:ss}---------------------------------------------------------------------"); tw.WriteLine(data.ToJson()); tw.Close(); } catch (Exception e) { } } }

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　　常量

/// /// 文件上传配置项 /// public class FileUploadConst { /// /// 上传地址 /// public static string UploadPath => ConfigHelper.GetConfigString("UploadPath"); /// /// 文件访问/下载地址 /// public static string DownloadPath => ConfigHelper.GetConfigString("DownloadPath"); /// /// 访问共享目录用户名 /// public static string UserName => ConfigHelper.GetConfigString("UserName"); /// /// 访问共享目录密码 /// public static string Password => ConfigHelper.GetConfigString("Password"); }

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　　具体上传文件代码

/// /// 上传文件到共享文件夹 /// [HttpPost, Route("api/Upload/UploadAttachment")] [AllowAnonymous] public ServiceResponse UploadAttachment() { var viewModel = new UploadRespModel(); var code = 200; var msg = "上传失败!"; 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}"; //共享文件夹的目录 var theFolder = new DirectoryInfo(path); var remotePath = theFolder.ToString(); Transport(file.InputStream, remotePath, fileName); viewModel.SaveUrl = $"{blobName}/{fileName}"; viewModel.DownloadUrl = PictureHelper.GetFileFullPath(viewModel.SaveUrl); msg = "上传成功"; } } else { code = CommonConst.Code_OprateError; msg = "链接服务器失败"; } return ServiceResponse.SuccessResponse(msg, viewModel, code); } /// /// 连接远程共享文件夹 /// /// 远程共享文件夹的路径 /// 用户名 /// 密码 private static bool connectState(string path, string userName, string passWord) { bool Flag = false; Process proc = new Process(); try { proc.StartInfo.FileName = "cmd.exe"; proc.StartInfo.UseShellExecute = false; proc.StartInfo.RedirectStandardInput = true; proc.StartInfo.RedirectStandardOutput = true; proc.StartInfo.RedirectStandardError = true; proc.StartInfo.CreateNoWindow = true; proc.Start(); string dosLine = "net use " + path + " " + passWord + " /user:" + userName; WriteHelper.WriteFile($"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($"errormsg:{errormsg}"); if (string.IsNullOrEmpty(errormsg)) { Flag = true; } else { throw new Exception(errormsg); } } catch (Exception ex) { WriteHelper.WriteFile(ex); throw ex; } finally { proc.Close(); proc.Dispose(); } return Flag; } /// /// 向远程文件夹保存本地内容，或者从远程文件夹下载文件到本地 /// /// 要保存的文件的路径，如果保存文件到共享文件夹，这个路径就是本地文件路径如：@"D:\1.avi" /// 保存文件的路径，不含名称及扩展名 /// 保存文件的名称以及扩展名 private static void Transport(Stream inFileStream, string dst, string fileName) { WriteHelper.WriteFile($"目录-Transport：{dst}"); if (!Directory.Exists(dst)) { Directory.CreateDirectory(dst); } dst = dst + fileName; if (!File.Exists(dst)) { WriteHelper.WriteFile($"文件不存在，开始保存"); var outFileStream = new FileStream(dst, FileMode.Create, FileAccess.Write); var buf = new byte[inFileStream.Length]; int byteCount; while ((byteCount = inFileStream.Read(buf, 0, buf.Length)) > 0) { outFileStream.Write(buf, 0, byteCount); } WriteHelper.WriteFile($"保存完成"); inFileStream.Flush(); inFileStream.Close(); outFileStream.Flush(); outFileStream.Close(); } }

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