.net core下对于附件上传下载的实现示例_实用技巧_

 [HttpPost("upload")] //[DisableRequestSizeLimit] //禁用http限制大小 [RequestSizeLimit(100*1024*1024)] //限制http大小 public async Task Post(List files) { try { if (files == null || !files.Any()) return AssertNotFound(new ResponseFileResult { Result = false, Code = ResponseCode.InvalidParameters, ErrorMessage = "附件不能为空" }); string filePath = Path.Combine(Directory.GetCurrentDirectory(), BASEFILE, $@"Template"); if (!Directory.Exists(filePath)) Directory.CreateDirectory(filePath); var result = new ResponseFileResult(); var fileList = new List(); foreach (var file in files) { var fileModel = new FileResultModel(); var fileName = ContentDispositionHeaderValue .Parse(file.ContentDisposition) .FileName .Trim('"'); var newName = Guid.NewGuid().ToString() + Path.GetExtension(fileName); var filefullPath = Path.Combine(filePath, $@"{newName}"); using (FileStream fs = new FileStream(filefullPath, FileMode.Create))//System.IO.File.Create(filefullPath) { file.CopyTo(fs); fs.Flush(); } fileList.Add(new FileResultModel { Name = fileName, Size = file.Length, Url = $@"/file/download?fileName={newName}" }); } result.FileResultList = fileList; return AssertNotFound(result); } catch(Exception ex) { return AssertNotFound(new ResponseFileResult { Result = false, Code = ResponseCode.UnknownException, ErrorMessage = ex.Message }); } } 

 [HttpGet("download")] public async Task Get(string fileName) { try { var addrUrl = Path.Combine(Directory.GetCurrentDirectory(), BASEFILE, $@"{fileName}"); FileStream fs = new FileStream(addrUrl, FileMode.Open); return File(fs, "application/vnd.android.package-archive", fileName); } catch(Exception ex) { return NotFound(); } }