Ele.Web/Controllers/UtilityController.cs

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using DotNet.Utilities;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace Ele.Web.Controllers
{
    public class UtilityController : Controller
    {
        public ActionResult UploadHandlerZJ(HttpPostedFileBase Filedata)
        {
            int MemberId = CookieHelper.GetMemberId();
            if (MemberId <= 0)
            {
                return Json(new { status = -1 });
            }
            else
            {
                // 如果没有上传文件
                if (Filedata == null || string.IsNullOrEmpty(Filedata.FileName) || Filedata.ContentLength == 0)
                {
                    return this.HttpNotFound();
                }

                //获取文件完整文件名(包含绝对路径)
                string fileMD5 = CommonHelper.CreateNo();
                string FileEextension = Path.GetExtension(Filedata.FileName);
                string filename = string.Format("{0}{1}", fileMD5, FileEextension);
                string folder = "cert";
                string virtualPath = "/";
                virtualPath = string.Format("~/uploads/{0}/{1}/{2}", folder, MemberId, filename);

                string fullFileName = this.Server.MapPath(virtualPath);

                //创建文件夹，保存文件
                string path = Path.GetDirectoryName(fullFileName);
                Directory.CreateDirectory(path);
                if (!System.IO.File.Exists(fullFileName))
                {
                    Filedata.SaveAs(fullFileName);
                }

                var data = new { filename = filename, folder = folder, filepath = virtualPath.Remove(0, 1) };
                return Json(data, JsonRequestBehavior.AllowGet);
            }
        }

    }
}