text: drop schema if exists `spring_security`;
  create schema `spring_security`;
  use `spring_security`;
  DROP TABLE IF EXISTS `sys_user`;
  CREATE TABLE `sys_user`
  (
      `user_id`         int(10) unsigned NOT NULL AUTO_INCREMENT,
      `username`        varchar(1024)    NOT NULL unique ,
      `encode_password` varchar(1024)       NOT NULL,
      `age`             int(3)           NOT NULL,
      PRIMARY KEY (`user_id`)
  ) ENGINE = InnoDB
    DEFAULT CHARSET = utf8mb4;