Asp.Net Core WebApi 和Asp.Net WebApi上传文件

    public class UpLoadController : ControllerBase
     {
         private readonly IHostingEnvironment _hostingEnvironment;

         public UpLoadController(IHostingEnvironment hostingEnvironment)
         {
             _hostingEnvironment = hostingEnvironment;
         }
         [HttpPost]
         public async Task<string> Post([FromForm] IFormCollection formCollection)
         {
             string result = "";
             string webRootPath = _hostingEnvironment.WebRootPath;
             string contentRootPath = _hostingEnvironment.ContentRootPath;

             FormFileCollection filelist = (FormFileCollection)formCollection.Files;

             foreach (IFormFile file in filelist)
             {
                 String Tpath = "/" + DateTime.Now.ToString("yyyy-MM-dd") + "/";
                 string name = file.FileName;
                 string FileName = DateTime.Now.ToString("yyyyMMddHHmmssfff");
                 string FilePath = webRootPath + Tpath;

                 string type = System.IO.Path.GetExtension(name);
                 DirectoryInfo di = new DirectoryInfo(FilePath);

                 if (!di.Exists) { di.Create(); }

                 using (FileStream fs = System.IO.File.Create(FilePath + FileName + type))
                 {
                     // 复制文件
                     file.CopyTo(fs);
                     // 清空缓冲区数据
                     fs.Flush();
                 }
                 result = "";
             }
             return result;
         }
     }

.NetCore WebApi

[HttpPost]
        public async Task<string> Post()
        {
            string result = "";
            HttpFileCollection filelist = HttpContext.Current.Request.Files;
            if (filelist != null && filelist.Count > )
            {
                for (int i = ; i < filelist.Count; i++)
                {
                    HttpPostedFile file = filelist[i];
                    String Tpath = "/" + DateTime.Now.ToString("yyyy-MM-dd") + "/";
                    string filename = file.FileName;
                    string FileName = DateTime.Now.ToString("yyyyMMddHHmmssfff");
                    string FilePath = HttpContext.Current.Server.MapPath("~/" + Tpath);
                    string type = System.IO.Path.GetExtension(filename);
                    DirectoryInfo di = new DirectoryInfo(FilePath);
                    if (!di.Exists) { di.Create(); }
                    try
                    {
                        file.SaveAs(FilePath + FileName+type);
                        result = "";
                    }
                    catch (Exception ex)
                    {
                        result = "上传文件写入失败：" + ex.Message;
                    }
                }
            }
            else
            {
                result = "上传的文件信息不存在！";
            }
            return result;
        }

Asp.Net WebApi

前端插件：https://blog.csdn.net/u010075697/article/details/72771594