/// <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();
}
}
