ThinkPHP权限认证Auth实例详解

本文以实例代码的形式深入剖析了ThinkPHP权限认证Auth的实现原理与方法，具体步骤如下：

mysql数据库部分sql代码：

-- ------------------------------ Table structure for think_auth_group-- ----------------------------DROP TABLE IF EXISTS `think_auth_group`;CREATE TABLE `think_auth_group` ( `id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT, `title` char(100) NOT NULL DEFAULT '', `status` tinyint(1) NOT NULL DEFAULT '1', `rules` char(80) NOT NULL DEFAULT '', PRIMARY KEY (`id`)) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=utf8 COMMENT='用户组表';-- ------------------------------ Records of think_auth_group-- ----------------------------INSERT INTO `think_auth_group` VALUES ('1', '管理组', '1', '1,2');-- ------------------------------ Table structure for think_auth_group_access-- ----------------------------DROP TABLE IF EXISTS `think_auth_group_access`;CREATE TABLE `think_auth_group_access` ( `uid` mediumint(8) unsigned NOT NULL COMMENT '用户id', `group_id` mediumint(8) unsigned NOT NULL COMMENT '用户组id', UNIQUE KEY `uid_group_id` (`uid`,`group_id`), KEY `uid` (`uid`), KEY `group_id` (`group_id`)) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='用户组明细表';-- ------------------------------ Records of think_auth_group_access-- ----------------------------INSERT INTO `think_auth_group_access` VALUES ('1', '1');INSERT INTO `think_auth_group_access` VALUES ('1', '2');-- ------------------------------ Table structure for think_auth_rule-- ----------------------------DROP TABLE IF EXISTS `think_auth_rule`;CREATE TABLE `think_auth_rule` ( `id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT, `name` char(80) NOT NULL DEFAULT '' COMMENT '规则唯一标识', `title` char(20) NOT NULL DEFAULT '' COMMENT '规则中文名称', `status` tinyint(1) NOT NULL DEFAULT '1' COMMENT '状态：为1正常，为0禁用', `type` char(80) NOT NULL, `condition` char(100) NOT NULL DEFAULT '' COMMENT '规则表达式，为空表示存在就验证，不为空表示按照条件验证', PRIMARY KEY (`id`), UNIQUE KEY `name` (`name`)) ENGINE=MyISAM AUTO_INCREMENT=5 DEFAULT CHARSET=utf8 COMMENT='规则表';-- ------------------------------ Records of think_auth_rule-- ----------------------------INSERT INTO `think_auth_rule` VALUES ('1', 'Home/index', '列表', '1', 'Home', '');INSERT INTO `think_auth_rule` VALUES ('2', 'Home/add', '添加', '1', 'Home', '');INSERT INTO `think_auth_rule` VALUES ('3', 'Home/edit', '编辑', '1', 'Home', '');INSERT INTO `think_auth_rule` VALUES ('4', 'Home/delete', '删除', '1', 'Home', '');DROP TABLE IF EXISTS `think_user`;CREATE TABLE `think_user` ( `id` int(11) NOT NULL, `username` varchar(30) DEFAULT NULL, `password` varchar(32) DEFAULT NULL, `age` tinyint(2) DEFAULT NULL, PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;-- ------------------------------ Records of think_user-- ----------------------------INSERT INTO `think_user` VALUES ('1', 'admin', '21232f297a57a5a743894a0e4a801fc3', '25');