/// <summary>
/// 获取验证码
/// </summary>
/// <returns></returns>
public ActionResult yzm()
{
ValidateCodeHelper vch = new ValidateCodeHelper();
string code = vch.GetRandomNumberString(4);
Tools.WriteCookie("loginCode", code, 2);
return(File(vch.CreateImage(code), "image/jpeg"));
}
public FileResult ValidateCode()
{
ValidateCodeHelper validateCode = new ValidateCodeHelper();
string code = validateCode.GetRandomNumberString(4);
TempData[VALIDATECODE] = code;
byte[] bytes = validateCode.CreateImage(code);
return(File(bytes, @"image/jpeg"));
}
public JsonResult CreateValidateCode()
{
//首先实例化验证码的类
ValidateCodeHelper validateCode = new ValidateCodeHelper();
//生成验证码指定的长度
string code = validateCode.GetRandomString(4);
//创建验证码的图片
var base64Str = validateCode.CreateImage(code);
var token = Guid.NewGuid().ToString("N");
using (RedisClient redisClient = RedisHelper.CreateClient())
{
redisClient.Set(token, code, TimeSpan.FromMinutes(5));
}
return(Json(new
{
base64Str,
token
}));
}
