everlight.eap/backend/WebUpload/Controllers/UploadController.cs

using Cksoft.Unity;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

namespace WebUpload.Controllers
{
    [Route("eap/api/[controller]/[action]")]
    public class UploadController : ControllerBase
    {
        //public IActionResult Index()
        //{
        //    return View();
        //}
        private readonly IHostingEnvironment _hostingEnvironment;
        public UploadController(IHostingEnvironment hostingEnvironment)
        {
            _hostingEnvironment = hostingEnvironment;
        }
        [HttpPost]
        public EapResponse Uploadfile([FromBody] CmkFile json)
        {
            byte[] byteArray = json.Bt;
            string upLoadDir = AppConfigurtaionServices.Configuration["upload"];
            var dateNow = DateTime.Now;
            var fileNewName = "";
            if (json.Extension.Contains("xls") || json.Extension.Contains("xlsx"))
            {
                fileNewName = json.FileName + "." + json.Extension;
            }
            else
            {
                fileNewName = Guid.NewGuid().ToString() + "." + json.Extension;
            }
            Stream stream = new MemoryStream();
            try
            {
                string path = $"/Upload/{dateNow.Year}/{dateNow.Month}/{dateNow.Day}/";
                string phyicPath = _hostingEnvironment.WebRootPath + path;
                string savedPath = phyicPath + fileNewName;
                this.CreateDirectory(phyicPath);
                byte[] bs = byteArray;
                stream.Read(bs, 0, bs.Length);
                using (FileStream fs = new FileStream(savedPath, FileMode.Create))
                {
                    fs.Write(bs, 0, bs.Length);
                    return new EapResponse
                    {
                        Code = 1,
                        Data = path + fileNewName,
                        Msg = json.FileName + "," + upLoadDir
                    };
                }
            }
            catch (Exception e)
            {
                return new EapResponse
                {
                    Code = -1,
                    Data = e.Message
                };
            }
            finally
            {
                stream.Close();
                stream.Dispose();
            }
        }
        [HttpGet]
        public EapResponse Getfile(string filename)
        {
            Stream stream = new MemoryStream();
            try
            {
                string phyicPath = _hostingEnvironment.WebRootPath+ filename;

                var base64 = Convert.ToBase64String(System.IO.File.ReadAllBytes(phyicPath));
              
                    return new EapResponse
                    {
                        Code = 1,
                        Data = base64
                    };
                
            }
            catch (Exception e)
            {
                return new EapResponse
                {
                    Code = -1,
                    Data = e.Message
                };
            }
            finally
            {
                stream.Close();
                stream.Dispose();
            }
        }
        private void CreateDirectory(string path)
        {
            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }
        }
    }
}