type Mailer struct {
From string `required:"true"`
UserName string `required:"true"`
PassWord string `required:"true"`
Host string `required:"true"`
Port int `required:"true"`
}
type Redis struct {
Host string `default:"127.0.0.1"`
Port int `default:"6379"`
User string `required:"true"`
Passwd string `default:""`
Db int `required:"true"`
}