C#抓取网络图片保存到本地

C#抓取网络图片保存到本地

System.Net.WebClient myWebClient = new System.Net.WebClient();

       //将头像保存到服务器

                    string virPath = "/Uploads/AppImage/" + user.Id + "/";

                    CreateDir(virPath);

                    string fileName = Guid.NewGuid().ToString() + ".png";

                    myWebClient.DownloadFile(headimgurl, System.Web.HttpContext.Current.Request.PhysicalApplicationPath + virPath + fileName);

                    user.Portrait = virPath + fileName;

        #region 创建目录

        /// <summary>

        /// 创建目录

        /// </summary>

        /// <param name="dir">要创建的目录路径包括目录名</param>

        public static void CreateDir(string dir)

        {

            if (dir.Length == ) return;

            if (!Directory.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir))

                Directory.CreateDirectory(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir)

                 ;

        }

        #endregion