/// <summary> /// 数据库获取用户信息 /// </summary> /// <param name="account"></param> /// <param name="password">为null时条件无效</param> /// <returns></returns> public static BaseUserEntity GetUserEntity(string account, string password) { UserService service = new UserService(); IEnumerable <BaseUserEntity> userList = service.GetUserList(account, ""); BaseUserEntity _entity = new BaseUserEntity(); int accountEqual = 0; foreach (BaseUserEntity item in userList) { if (item.Account.ToUpper().Equals(account.ToUpper()))//省略大小写 { _entity = item; accountEqual++; } } if (accountEqual > 1) { throw new Exception("账号重名,请联系管理员"); } else if (accountEqual == 1) { if (password == null || password.IsEmpty()) { return(_entity); } string dbPassword = EncryptUtils.doEncrypt(password);//Md5Helper.MD5(DESEncrypt.Encrypt(password.ToLower(), userEntity.Secretkey).ToLower(), 32).ToLower(); if (dbPassword == _entity.Password) { return(_entity); } else { throw new Exception("密码和账户名不匹配"); } } else { throw new Exception("账户不存在,请重新输入"); } }
/// <summary> /// 生成验证码 /// </summary> /// <returns></returns> public byte[] GetVerifyCode() { int codeW = 80; int codeH = 30; int fontSize = 16; string chkCode = string.Empty; //颜色列表,用于验证码、噪线、噪点 Color[] color = { Color.Black, Color.Red, Color.Blue, Color.Green, Color.Orange, Color.Brown, Color.Brown, Color.DarkBlue }; //字体列表,用于验证码 string[] font = { "Times New Roman" }; //验证码的字符集,去掉了一些容易混淆的字符 char[] character = { '2', '3', '4', '5', '6', '8', '9', 'a', 'b', 'd', 'e', 'f', 'h', 'k', 'm', 'n', 'r', 'x', 'y', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'P', 'R', 'S', 'T', 'W', 'X', 'Y' }; Random rnd = new Random(); //生成验证码字符串 for (int i = 0; i < 4; i++) { chkCode += character[rnd.Next(character.Length)]; } //写入Session、验证码加密 HttpContext.Current.Session[GrobalConfig.VerifyCode] = EncryptUtils.doEncrypt(chkCode.ToLower()); //创建画布 Bitmap bmp = new Bitmap(codeW, codeH); Graphics g = Graphics.FromImage(bmp); g.Clear(Color.White); //画噪线 for (int i = 0; i < 1; i++) { int x1 = rnd.Next(codeW); int y1 = rnd.Next(codeH); int x2 = rnd.Next(codeW); int y2 = rnd.Next(codeH); Color clr = color[rnd.Next(color.Length)]; g.DrawLine(new Pen(clr), x1, y1, x2, y2); } //画验证码字符串 for (int i = 0; i < chkCode.Length; i++) { string fnt = font[rnd.Next(font.Length)]; Font ft = new Font(fnt, fontSize); Color clr = color[rnd.Next(color.Length)]; g.DrawString(chkCode[i].ToString(), ft, new SolidBrush(clr), (float)i * 18, (float)0); } //将验证码图片写入内存流,并将其以 "image/Png" 格式输出 MemoryStream ms = new MemoryStream(); try { bmp.MakeTransparent(Color.White); bmp.Save(ms, ImageFormat.Png); return(ms.ToArray()); } catch (Exception) { return(null); } finally { g.Dispose(); bmp.Dispose(); } }