使用ASP.NET MVC实现简单的文件上传与下载。
1、上传文件HTML
<form action='@Url.Action("Upload", "File")' method="post" enctype="multipart/form-data">
<input type="file" name="file" /><br />
<input type="submit" value="提交" />
</form>
2、下载文件HTML
<a href='@Url.Action("Download", "File", new { fileName = "MyPhoto.png" })'>下载文件</a>
3、创建FileController.cs后台控制器
public class FileController : Controller
{
/// <summary>
/// 上传文件
/// </summary>
public ActionResult Upload(HttpPostedFileBase file)
{
var fileName = file.FileName;
var filePath = Server.MapPath(string.Format("~/{0}", "File"));
file.SaveAs(Path.Combine(filePath, fileName));
return Json("上传成功");
}
/// <summary>
/// 下载文件
/// </summary>
public FileStreamResult Download(string fileName)
{
string filePath = Server.MapPath(string.Format("~/{0}/{1}", "File", fileName));
FileStream fs = new FileStream(filePath, FileMode.Open);
return File(fs, "text/plain", fileName);
}
}