public ActionResult CaptchaImage()
{
var cp = new LiteralCaptcha(50, 30, 4);
var bytes = cp.Generate();
Session["captcha"] = cp.Result;
return(File(bytes, "image/Jpeg"));
//return img;
}
/// <summary>
/// 登录验证码
/// </summary>
/// <returns></returns>
public FileContentResult CaptchaImage()
{
var captcha = new LiteralCaptcha(80, 25, 4);
var bytes = captcha.Generate();
//验证码插入Redis缓存
var redis = new ETS.NoSql.RedisCache.RedisCache();
string cachekey = string.Format(RedissCacheKey.CaptchaImage, ETS.Util.Helper.Uuid());
redis.Add(cachekey, captcha.Captcha, DateTime.Now.AddHours(10));
//缓存key放入cookie里存储
CookieHelper.WriteCookie("Cookie_Verification", cachekey, DateTime.Now.AddMinutes(10));
return(new FileContentResult(bytes, "image/jpeg"));;
}