//todo:下载附件
public IActionResult GetAttach(string fileId)
{
if (string.IsNullOrEmpty(fileId))
{
return(Content("error"));
}
if (fileId.Length == 24)
{
fileId = fileId.Substring(0, 16);
}
var attachFile = AttachService.GetAttach(MyConvert.HexToLong(fileId));
if (attachFile == null)
{
return(Content("NoFoundAttach"));
}
var stream = System.IO.File.OpenRead(attachFile.Path);
string fileExt = Path.GetExtension(attachFile.Name);
//获取文件的ContentType
var provider = new FileExtensionContentTypeProvider();
var memi = provider.Mappings[fileExt];
return(File(stream, memi, Path.GetFileName(attachFile.Path)));
}
