public FileStreamResult DownLoad([FromServices] IWebHostEnvironment environment, string FileID)
{
//try
//{
var userSession = _tokenManager.GetSessionInfo();
if (string.IsNullOrEmpty(FileID))
{
throw new Exception("文件ID不允许为空");
}
gnl_File file = _gnlfileService.GetId(FileID);
if (file == null)
{
throw new Exception("文件不存在");
}
string filepath = file.AbsoluteFilePath;
var stream = System.IO.File.OpenRead(filepath);
string fileExt = file.FileExt; // 这里可以写一个获取文件扩展名的方法，获取扩展名
//获取文件的ContentType
var provider = new Microsoft.AspNetCore.StaticFiles.FileExtensionContentTypeProvider();
var memi = provider.Mappings[fileExt];
var fileName = System.IO.Path.GetFileNameWithoutExtension(file.FileName);
_gnlfileService.Update(f => f.FileID.ToString() == FileID, f => new gnl_File {
DownloadCount = file.DownloadCount + 1
});
return(File(stream, memi, fileName));
//}
//catch(Exception ex)
//{
//return toResponse(StatusCodeType.Error, ex.Message);
//}
}
public static string allowtype = AppSettings.Configuration["FileSettiong:AllowType"]; //上传文件类型
/// <summary>
/// 保存文件至设置路径
/// </summary>
/// <param name="WebRootPath">接口服务所在路径</param>
/// <param name="file">文件流</param>
/// <param name="FileName">文件名称</param>
/// <param name="FileGroup">文件分类</param>
/// <returns></returns>
public static gnl_File CreateFile(string WebRootPath, IFormFile file, string FileName, string FileType = "Attach")
{
try
{
gnl_File gnlfile = new gnl_File();
if (filerootpath == "")
{
filerootpath = WebRootPath;
}
Guid fileid = Guid.NewGuid();
string flodpath = Path.Combine(FileType, DateTime.Now.ToString("yyyyMM"));
string folderpath = Path.Combine(filerootpath, flodpath);
string ext = Path.GetExtension(FileName);
if (!Directory.Exists(folderpath))
{
Directory.CreateDirectory(folderpath);
}
string path = Path.Combine(folderpath, fileid.ToString());
using (var stream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
file.CopyTo(stream);
}
gnlfile.FileID = fileid.ToString().ToUpper(); //文件id
gnlfile.FileName = FileName; //文件名
gnlfile.FileExt = ext; //文件后缀名
gnlfile.FileRootPath = filerootpath; //存放路径
gnlfile.AbsoluteFilePath = path; //绝对路径
gnlfile.RelativeFilePath = Path.Combine(flodpath, fileid.ToString()); //相对路径
gnlfile.FileSize = (int)file.Length; //文件大小
gnlfile.FileType = FileType;
return(gnlfile);
}
catch (Exception ex)
{
return(null);
}
}
