/// <summary> /// 下载图片 /// </summary> /// <param name="url"></param> /// <returns></returns> private string DownloadImage(string url) { string localFile = Path.GetTempPath() + Guid.NewGuid().ToString("N"); // 下载 bool isSuccessed = StorageUtils.DownloadImage(url, localFile); if (isSuccessed) { try { string md5 = Hash.GetMD5HashFromFile(localFile); if (File.Exists(localFile)) { string destFile = $"{StorageManager.GetHeader()}/{md5}"; try { File.Delete(destFile); } catch { } // 移动到指定位置 File.Move(localFile, destFile); return(md5); } else { return(null); } } catch (Exception e) { Utils.Debugging.Console.PrintLine("DownloadImage()发生异常: {0}", e); LogManager.Error("StorageHeader", e); return(null); } } return(null); }
/// <summary> /// 获取用户头像 /// </summary> /// <param name="mid"></param> /// <returns></returns> public string GetHeader(long mid, string name, string url) { HeaderDb headerDb = new HeaderDb(); Header header = headerDb.QueryByMid(mid); if (header != null) { string headerPath = $"{StorageManager.GetHeader()}/{header.Md5}"; if (File.Exists(headerPath)) { Header newHeader = new Header { Mid = mid, Name = name, Url = url, Md5 = header.Md5 }; headerDb.Update(newHeader); //headerDb.Close(); return($"{StorageManager.GetHeader()}/{header.Md5}"); } else { string md5 = DownloadImage(url); if (md5 != null) { Header newHeader = new Header { Mid = mid, Name = name, Url = url, Md5 = md5 }; headerDb.Insert(newHeader); //headerDb.Close(); return($"{StorageManager.GetHeader()}/{md5}"); } else { //headerDb.Close(); return(null); } } } else { string md5 = DownloadImage(url); if (md5 != null) { Header newHeader = new Header { Mid = mid, Name = name, Url = url, Md5 = md5 }; headerDb.Insert(newHeader); //headerDb.Close(); return($"{StorageManager.GetHeader()}/{md5}"); } else { //headerDb.Close(); return(null); } } }