通过Src下载图片存到指定文件夹

最新推荐文章于 2022-09-22 21:48:46 发布

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最新推荐文章于 2022-09-22 21:48:46 发布

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本文链接：https://blog.youkuaiyun.com/YangangwuWuyangang/article/details/46770613

本文介绍了一种通过HTTP请求从远程服务器下载图片的方法，并详细解释了如何使用C#处理图片的下载过程，包括设置代理、自动重定向以及将图片保存到本地磁盘的具体实现。

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          string src = temppartsrc + "." + pictype;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(src);
            request.AllowAutoRedirect = true;

            WebProxy proxy = new WebProxy();
            proxy.BypassProxyOnLocal = true;
            proxy.UseDefaultCredentials = true;
            request.Proxy = proxy;
            WebResponse response = request.GetResponse();
            string virthpath = "";
            using (Stream stream = response.GetResponseStream())
            {
                using (MemoryStream ms = new MemoryStream())
                {
                    Byte[] buffer = new Byte[1024];
                    int current = 0;
                    while ((current = stream.Read(buffer, 0, buffer.Length)) != 0)
                    {
                        ms.Write(buffer, 0, current);
                    }
                    byte[] arry = ms.ToArray();
                     virthpath = "./image/" + DateTime.Now.ToString("yyyyMMddhhmmss") + "." + pictype;
                    string path = Server.MapPath(virthpath);
                    File.WriteAllBytes(path, arry);
                }
            }