asp.net core mvc实现文件上传实例_实用技巧_

 public class PictureController : Controller { private IHostingEnvironment hostingEnv; public PictureController(IHostingEnvironment env) { this.hostingEnv = env; } // GET: // public IActionResult Index() { return View(); } public IActionResult UploadFiles() { return View(); } [HttpPost] public IActionResult UploadFiles(IList files) { long size = 0; foreach (var file in files) { var filename = ContentDispositionHeaderValue .Parse(file.ContentDisposition) .FileName .Trim('"'); //这个hostingEnv.WebRootPath就是要存的地址可以改下 filename = hostingEnv.WebRootPath + $@"\{filename}"; size += file.Length; using (FileStream fs = System.IO.File.Create(filename)) { file.CopyTo(fs); fs.Flush(); } } ViewBag.Message = $"{files.Count} file(s) /{ size}bytes uploaded successfully!"; return View(); } } 

 public IActionResult UploadFilesAjax() { return View(); } [HttpPost] public IActionResult UploadFilesAjax(string z) { long size = 0; var files = Request.Form.Files; foreach (var file in files) { var filename = ContentDispositionHeaderValue .Parse(file.ContentDisposition) .FileName .Trim('"'); filename = @"C:\Users\lg.HL\Desktop" + $@"\{filename}"; size += file.Length; using (FileStream fs = System.IO.File.Create(filename)) { file.CopyTo(fs); fs.Flush(); } } string message = $"{files.Count} file(s) / { size}bytes uploaded successfully!"; return Json(message); }