CREATE DATABASE `authority`;USE `authority`;/*Table structure for table `users` */DROP TABLE IF EXISTS `users`;CREATE TABLE `users` (`user_name` varchar(20) NOT NULL,`user_pass` varchar(20) NOT NULL,PRIMARY KEY (`user_name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;/*Data for the table `users` */insert  into `users`(`user_name`,`user_pass`) values ('ta','1234');/*Table structure for table `roles` */DROP TABLE IF EXISTS `roles`;CREATE TABLE `roles` (`role_name` varchar(20) NOT NULL,PRIMARY KEY (`role_name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;/*Data for the table `roles` */insert  into `roles`(`role_name`) values ('manager-gui'),('manager-jmx'),('manager-script'),('manager-status');/*Table structure for table `user_role` */DROP TABLE IF EXISTS `user_role`;CREATE TABLE `user_role` (`user_name` varchar(20) NOT NULL,`role_name` varchar(20) NOT NULL,KEY `FK_user` (`user_name`),KEY `FK_role` (`role_name`),CONSTRAINT `FK_role` FOREIGN KEY (`role_name`) REFERENCES `roles` (`role_name`) ON DELETE CASCADE ON UPDATE CASCADE,CONSTRAINT `FK_user` FOREIGN KEY (`user_name`) REFERENCES `users` (`user_name`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;/*Data for the table `user_role` */insert  into `user_role`(`user_name`,`role_name`) values ('ta','manager-gui');

      <Realm className="org.apache.catalina.realm.JDBCRealm"driverName="org.gjt.mm.mysql.Driver"connectionURL="jdbc:mysql://localhost/authority?user=root&amp;password=root"userTable="users" userNameCol="user_name" userCredCol="user_pass"userRoleTable="user_role" roleNameCol="role_name"/>