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c#项目返回文件案例
2021-10-28 15:25:09

C#项目API返回文件案例

               string path = "你的文件地址/测试文件.txt";
                var filestream = new FileStream(path, FileMode.OpenOrCreate);
                HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
                response.Content = new StreamContent(filestream);
                response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
                response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")  { FileName = "测试文件.txt" }; 
              return response;

MVC项目返回文件案例

string contentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
  byte[] fileContents="文件转化后的byte";
  return File(outfile, $"{fileContents};Charset=utf-8", $"行政费用申请{DateTime.Now.ToString("yyyy-MM-dd")}.xlsx");

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