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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