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
}));
}