已知一个网上图片地址(如http://sina/image.jpg)怎样通过.net把此图片变成自己的图片保存下来
已知一个网上图片地址(如http://sina/image.jpg)怎样通过.net把此图片变成自己的图片保存下来
存放在已有的文件夹里..个位高手请指点.求源码
[解决办法]
http://www.gdwg.net/article/sort014/sort063/sort071/info-1576.html
[解决办法]
string s = txtURL.Text.Trim();
System.Net.HttpWebRequest req = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(s);
System.Net.HttpWebResponse res = (System.Net.HttpWebResponse)req.GetResponse();
Image myImage = (Bitmap)Image.FromStream(res.GetResponseStream());
......
然后想怎样就怎样了
[解决办法]
private Stream GetStream(string strLink) { HttpWebRequest request = null; try { request = (HttpWebRequest)WebRequest.Create(strLink); request.UserAgent = "Mozilla/5.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1;.NET CLR 2.0.50727)"; return request.GetResponse().GetResponseStream(); } catch { request.Abort(); return null; } } public bool SaveImage(string strLink,string strFolder,string strNewName,bool unique) { try { string strTmp = string.Empty; readstream = GetStream(strLink); if (readstream == null) { throw new Exception("获取图片错误"); } if (unique) { filestream = new FileStream(GetPath(strLink,strFolder,strNewName), FileMode.CreateNew, FileAccess.Write); } else { filestream = new FileStream(GetPath(strLink, strFolder, strNewName), FileMode.Create, FileAccess.Write); } do { length = readstream.Read(buffer, 0, buffer.Length); if (length == 0) { break; } filestream.Write(buffer, 0, length); } while (length > 0); return true; } catch { return false; } finally { Close(); } }//流都是stream类型我写ftp的时候用到的，，，具体的你自己改！close这个函数的命令就是关闭这些流！！