一、前期配置
1. 加入依赖
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
<version>5.1.27</version>
</dependency>
这里选定的 mysql-connector-java
连接版本是 5.1.27,对应的 application.properties
为:
spring.datasource.url=jdbc:mysql://localhost:3306/yolo
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.username=root
spring.datasource.password=root
如果是 8.0以上版本则 application.properties
需要对于 spring.datasource.url
需要加入 serverTimezone
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.url=jdbc:mysql://localhost:3306/security?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
2. 数据库脚本
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for role
-- ----------------------------
DROP TABLE IF EXISTS `role`;
CREATE TABLE `role` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(32) DEFAULT NULL,
`nameZh` varchar(32) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of role
-- ----------------------------
INSERT INTO `role` VALUES ('1', 'dba', '数据库管理员');
INSERT INTO `role` VALUES ('2', 'admin', '系统管理员');
INSERT INTO `role` VALUES ('3', 'user', '用户');
-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(32) DEFAULT NULL,
`password` varchar(255) DEFAULT NULL,
`enabled` tinyint(1) DEFAULT NULL,
`locked` tinyint(1) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('1', 'root', '$2a$10$RMuFXGQ5AtH4wOvkUqyvuecpqUSeoxZYqilXzbz50dceRsga.WYiq', '1', '0');
INSERT INTO `user` VALUES ('2', 'admin', '$2a$10$RMuFXGQ5AtH4wOvkUqyvuecpqUSeoxZYqilXzbz50dceRsga.WYiq', '1', '0');
INSERT INTO `user` VALUES ('3', 'sang', '$2a$10$RMuFXGQ5AtH4wOvkUqyvuecpqUSeoxZYqilXzbz50dceRsga.WYiq', '1', '0');
-- ----------------------------
-- Table structure for user_role
-- ----------------------------
DROP TABLE IF EXISTS `user_role`;
CREATE TABLE `user_role` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`uid` int(11) DEFAULT NULL,
`rid` int(11) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of user_role
-- ----------------------------
INSERT INTO `user_role` VALUES ('1', '1', '1');
INSERT INTO `user_role` VALUES ('2', '1', '2');
INSERT INTO `user_role` VALUES ('3', '2', '2');
INSERT INTO `user_role` VALUES ('4', '3', '3');
SET FOREIGN_KEY_CHECKS=1;
二、定义实体类
1. 定义 User
<mark style="box-sizing: border-box; outline: 0px; background-color: rgb(248, 248, 64); color: rgb(0, 0, 0); overflow-wrap: break-word;">实体类 User 需要实现 UserDetails 接口,因为每个人都可以定义 User 对象,但是每个人定义的 User对象不一样,这就造成每个人设置的属性不一样,当系统需要判定用户的登录状态时,因为用户名和密码的名称设置的五花八门,造成无法确定调用哪个</mark>
所以这里要求所有的实体类实现 UserDetails 接口,它就相当于一个规范定义了登录验证时需要的属性名称,所以的实体类都要符合这个规范。
public class User implements UserDetails {
private Integer id;
private String username;
private String password;
private Boolean enabled;
private Boolean locked;
private List<Role> roles;
public List<Role> getRoles() {
return roles;
}
public void setRoles(List<Role> roles) {
this.roles = roles;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
@Override
public String getUsername() {
return username;
}
@Override
public boolean isAccountNonExpired() {
return true;
}
@Override
public boolean isAccountNonLocked() {
return !locked;
}
@Override
public boolean isCredentialsNonExpired() {
return true;
}
@Override
public boolean isEnabled() {
return enabled;
}
public void setUsername(String username) {
this.username = username;
}
@Override
public Collection<? extends GrantedAuthority> getAuthorities() {
List<SimpleGrantedAuthority> authorities = new ArrayList<>();
for (Role role : roles) {
authorities.add(new SimpleGrantedAuthority("ROLE_"+role.getName()));
}
return authorities;
}
@Override
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public void setEnabled(Boolean enabled) {
this.enabled = enabled;
}
public void setLocked(Boolean locked) {
this.locked = locked;
}
}
(1) accountNonExpired、accountNonLocked、credentialsNonExpired、enabled 这四个属性分别用来描述用户的状态,表示账户是否没有过期、账户是否没有被锁定、密码是否没有过期、以及账户是否可用。
(2)roles 属性表示用户的角色,User 和 Role 是多对多关系,用一个 @ManyToMany 注解来描述。
(3)getAuthorities 方法返回用户的角色信息,我们在这个方法中把自己的 Role 稍微转化一下即可。
(1)这个集合是返回用户的所有角色,因为从数据库得到是 roles,但是需要的是一个集合形式的 getAuthorities
,所以需要对其进行处理。
@Override
public Collection<? extends GrantedAuthority> getAuthorities() {
List<SimpleGrantedAuthority> authorities = new ArrayList<>();
for (Role role : roles) {
authorities.add(new SimpleGrantedAuthority("ROLE_"+role.getName()));
}
return authorities;
}
<mark style="box-sizing: border-box; outline: 0px; background-color: rgb(248, 248, 64); color: rgb(0, 0, 0); overflow-wrap: break-word;">这里注意springsecurity 角色的认证有一个要求,必须是以 ROLE_
开始的</mark>,否则会出现问题:
authorities.add(new SimpleGrantedAuthority("ROLE_"+role.getName()));
当然也可以在数据中添加用户时,就让用户以 ROLE_
开始,这样就不用二次添加了
(2)另外需要注意这里的 isAccountNonLocked()
,账户是否没有被锁定,数据库中存储的是:
所以这里是对 locked 取的反
@Override
public boolean isAccountNonLocked() {
return !locked;
}
2. 定义 Role
public class Role {
private Integer id;
private String name;
private String nameZh;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getNameZh() {
return nameZh;
}
public void setNameZh(String nameZh) {
this.nameZh = nameZh;
}
}
三、定义 Service
@Service
public class UserService implements UserDetailsService {
@Autowired
UserMapper userMapper;
@Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
User user = userMapper.loadUserByUsername(username);
if (user == null) {
throw new UsernameNotFoundException("用户不存在!");
}
user.setRoles(userMapper.getUserRolesById(user.getId()));
return user;
}
}
我们自己定义的
UserService
需要实现UserDetailsService
接口,实现该接口,就要实现接口中的方法,也就是loadUserByUsername
,这个方法的参数就是用户在登录的时候传入的用户名,根据用户名去查询用户信息(查出来之后,系统会自动进行密码比对)。
四、定义 Mapper
1. UserMapper
@Mapper
public interface UserMapper {
User loadUserByUsername(String username);
List<Role> getUserRolesById(Integer id);
}
2. UserMapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="org.javaboy.securitydb.mapper.UserMapper">
<select id="loadUserByUsername" resultType="org.yolo.securitymybatis.bean.User">
select * from user where username=#{username}
</select>
<select id="getUserRolesById" resultType="org.yolo.securitymybatis.bean.Role">
select * from role where id in (select rid from user_role where uid=#{id})
</select>
</mapper>
Mapper 的位置:
所以需要为其添加资源路径:资源配置路径添加到 pom 文件中
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
五、定义 SecurityConfig
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Autowired
UserService userService;
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userService);
}
@Bean
PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
@Bean
RoleHierarchy roleHierarchy() {
RoleHierarchyImpl roleHierarchy = new RoleHierarchyImpl();
String hierarchy = "ROLE_dba > ROLE_admin \n ROLE_admin > ROLE_user";
roleHierarchy.setHierarchy(hierarchy);
return roleHierarchy;
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.antMatchers("/dba/**").hasRole("dba")
.antMatchers("/admin/**").hasRole("admin")
.antMatchers("/user/**").hasRole("user")
.anyRequest().authenticated()
.and()
.formLogin()
.permitAll()
.and()
.csrf().disable();
}
}
测试访问:成功
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