【第二十五篇】下载URL图片到服务端，打包压缩下载到客户端

 public ActionResult GetShopFile(string id)
        {
            List<string> fileNames = new List<string>();
            if (!string.IsNullOrEmpty(model.DoorPhoto))
            {
                string url = Configs.AppSettingsValue("ImageDomain") + model.DoorPhoto;
                fileNames.Add(url.Substring(url.LastIndexOf('/') + 1));
                DownImg(url, model.Id);
            }
            if (!string.IsNullOrEmpty(model.BusinessPhoto))
            {
                string url = Configs.AppSettingsValue("ImageDomain") + model.BusinessPhoto;
                fileNames.Add(url.Substring(url.LastIndexOf('/') + 1));
                DownImg(Configs.AppSettingsValue("ImageDomain") + model.BusinessPhoto, model.Id);
            }
            if (!string.IsNullOrEmpty(model.IdCardPhoto))
            {
                string url = Configs.AppSettingsValue("ImageDomain") + model.IdCardPhoto;
                fileNames.Add(url.Substring(url.LastIndexOf('/') + 1));
                DownImg(Configs.AppSettingsValue("ImageDomain") + model.IdCardPhoto, model.Id);
            }
            if (!string.IsNullOrEmpty(model.IdCardBackPhoto))
            {
                string url = Configs.AppSettingsValue("ImageDomain") + model.IdCardBackPhoto;
                fileNames.Add(url.Substring(url.LastIndexOf('/') + 1));
                DownImg(Configs.AppSettingsValue("ImageDomain") + model.IdCardBackPhoto, model.Id);
            }

            Response.Clear();
            Response.ContentType = "application/zip";
            Response.AddHeader("content-disposition", "filename=" + model.ShopName + ".zip");
            using (ZipFile file = new ZipFile(System.Text.Encoding.Default))
            {
                foreach (var item in fileNames)
                {
                    file.AddFile(Server.MapPath("~/Zip/" + model.Id + "/" + item), "");
                }
                file.Save(Response.OutputStream);
            }
            Response.End();
            return new EmptyResult();
        }

private void DownImg(string url, string shopId)
        {
            string fileName = url.Substring(url.LastIndexOf('/') + 1);
            if (!Directory.Exists(Server.MapPath("~/Zip/" + shopId)))
            {
                Directory.CreateDirectory(Server.MapPath("~/Zip/" + shopId));
            }
            System.Net.WebClient webClient = new System.Net.WebClient();
            webClient.DownloadFile(url, Server.MapPath("~/Zip/" + shopId + "/" + fileName));
        }

 

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转载请记得说明作者和出处哦-.-
作者：KingDuDu
原文出处：https://www.cnblogs.com/kingdudu/articles/12673604.html

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