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ASP.NET Core 上传文件到共享文件夹

参考资料:ASP.NET 上传文件到共享文件夹

创建共享文件夹参考资料:https://www.cnblogs.com/dansediao/p/5712657.html

一、配置上传文件相关参数并读取参数

1.配置appsettings.json    

{     "FileUploadInfo": {     "UploadPath": "\\172.21.0.10\File",     "DownloadPath": "http://213.10.11.126:8001/",     "UserName": "ShareUser",     "Password": "Password"     }   }

2.读取配置数据

2.1 新建实体类  

 

    /// <summary>     /// 文件上传配置项     /// </summary>     public class FileUploadConst     {         /// <summary>         /// 上传地址         /// </summary>         public string UploadPath { get; set; }          /// <summary>         /// 文件访问/下载地址         /// </summary>         public string DownloadPath { get; set; }          /// <summary>         /// 访问共享目录用户名         /// </summary>         public string UserName { get; set; }          /// <summary>         /// 访问共享目录密码         /// </summary>         public string Password { get; set; }     }

2.2  映射实体类与配置项

在startup.cs中配置    

                public void ConfigureServices(IServiceCollection services)         {             services.Configure<FileUploadConst>(Configuration.GetSection("FileUploadInfo"));         }

3.控制器中读取配置项,通过注入的方式

 

        public FileUploadConst FileUploadConfig { get; set; }         public UploadController(IOptions<FileUploadConst> option)         {             FileUploadConfig = option.Value;         }

二、上传文件

  上传文件之前记得初始化构造方法,注入文件上传配置项!!!!!↑

1.连接文件服务器方法 

        /// <summary>         /// 连接远程共享文件夹         /// </summary>         /// <param name="path">远程共享文件夹的路径</param>         /// <param name="userName">用户名</param>         /// <param name="passWord">密码</param>         private static bool connectState(string path, string userName, string passWord)         {             var flag = false;             var 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();                 var dosLine = "net use " + path + " " + passWord + " /user:" + userName;                 proc.StandardInput.WriteLine(dosLine);                 proc.StandardInput.WriteLine("exit");                 while (!proc.HasExited)                 {                     proc.WaitForExit(1000);                 }                  var errormsg = proc.StandardError.ReadToEnd();                 proc.StandardError.Close();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;         } 

2.传输文件流到服务器中

        /// <summary>         /// 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         /// </summary>         /// <param name="inFileStream">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"</param>         /// <param name="dst">保存文件的路径,不含名称及扩展名</param>         /// <param name="fileName">保存文件的名称以及扩展名</param>         private static void Transport(Stream inFileStream, string dst, string fileName)         {if (!Directory.Exists(dst))             {                 Directory.CreateDirectory(dst);             }              dst = dst + fileName;              if (!System.IO.File.Exists(dst))             {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);                 }                 inFileStream.Flush();                  inFileStream.Close();                  outFileStream.Flush();                  outFileStream.Close();             }         }

3.接收文件并上传到文件服务器

        /// <summary>         /// 上传附件到文件服务器中         /// </summary>         [HttpPost, Route("api/Upload/UploadAttachment")]         [AllowAnonymous]         public ServiceResponse<UploadRespModel> UploadAttachment()         {             var viewModel = new UploadRespModel();             var code = 200;             var msg = "上传失败!";              var path = FileUploadConfig.UploadPath; //@"\172.16.10.130Resource";             var s = connectState(path, FileUploadConfig.UserName, FileUploadConfig.Password);             try             {                 if (s)                 {                     var filelist = HttpContext.Request.Form.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.OpenReadStream(), remotePath, fileName);                          viewModel.SaveUrl = $"{blobName}/{fileName}";                         viewModel.DownloadUrl = GetFileFullPath(viewModel.SaveUrl);                          msg = "上传成功";                     }                 }                 else                 {                     code = CommonConst.Code_OprateError;                     msg = "链接服务器失败";                 }             }             catch (Exception e)             {                 Console.WriteLine(e);                 msg = e.Message;             }              return ServiceResponse<UploadRespModel>.SuccessResponse(msg, viewModel, code);         }

 4.图片地址拼接方法

        /// <summary>         /// 拼接文件全路径         /// </summary>         /// <param name="filePath">文件相对地址</param>         private string GetFileFullPath(string filePath)         {             var str = string.Empty;             if (!string.IsNullOrEmpty(filePath))             {                 // 兼容旧数据                 if (filePath.Contains("http://") || filePath.Contains("https://"))                 {                     str = filePath;                 }                 else                 {                     var host = FileUploadConfig.DownloadPath;                     str = $"{host}/{filePath}";                 }             }             return str;         }

 

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