/// <summary> /// 下载图片 /// </summary> /// <param name="picUrl">图片Http地址</param> /// <param name="savePath">保存路径</param> /// <param name="timeOut">Request最大请求时间,如果为-1则无限制</param> /// <returns></returns> public bool DownloadPicture(string picUrl, string savePath, int timeOut) { bool value = false; WebResponse response = null; Stream stream = null; try { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(picUrl); if (timeOut != -1) request.Timeout = timeOut; response = request.GetResponse(); stream = response.GetResponseStream(); if (!response.ContentType.ToLower().StartsWith("text/")) value = SaveBinaryFile(response, savePath); } finally { if (stream != null) stream.Close(); if (response != null) response.Close(); } return value; } private static bool SaveBinaryFile(WebResponse response, string savePath) { bool value = false; byte[] buffer = new byte[1024]; Stream outStream = null; Stream inStream = null; try { if (File.Exists(savePath)) File.Delete(savePath); outStream = System.IO.File.Create(savePath); inStream = response.GetResponseStream(); int l; do { l = inStream.Read(buffer, 0, buffer.Length); if (l > 0) outStream.Write(buffer, 0, l); } while (l > 0); value = true; } finally { if (outStream != null) outStream.Close(); if (inStream != null) inStream.Close(); } return value; }
根据图片URL地址下载图片
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转载自www.cnblogs.com/zyl1994/p/12401316.html
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