SpringBoot之简单使用SpringSecurity(一个简单的权限操作的Demo)

当前SpringBoot版本2.2.5.RELEASE，对应SpringSecurity5.2.2.RELEASE

1.声明

当前内容用于不认人学习和使用SpringSecurity,当前内容主要涉及SpringSecurity访问数据库集成MyBatis的操作，实现用户权限的基本控制

2.pom依赖

<parent>
	<groupId>org.springframework.bootgroupId>
	<artifactId>spring-boot-starter-parentartifactId>
	<version>2.2.5.RELEASEversion>
	<relativePath/> 
parent>
<dependency>
	<groupId>junitgroupId>
	<artifactId>junitartifactId>
	<version>3.8.1version>
	<scope>testscope>
dependency>
<dependency>
	<groupId>org.springframework.bootgroupId>
	<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
	<groupId>org.springframework.bootgroupId>
	<artifactId>spring-boot-starter-securityartifactId>
dependency>
<dependency>
	<groupId>org.projectlombokgroupId>
	<artifactId>lombokartifactId>
dependency>
<dependency>
	<groupId>org.mybatis.spring.bootgroupId>
	<artifactId>mybatis-spring-boot-starterartifactId>
	<version>RELEASEversion>
dependency>
<dependency>
	<groupId>mysqlgroupId>
	<artifactId>mysql-connector-javaartifactId>
	<version>5.1.46version>
	<scope>runtimescope>
dependency>

<dependency>
	<groupId>com.alibabagroupId>
	<artifactId>druidartifactId>
	<version>1.1.21version>
dependency>

3.实体类Account和Controller以及入口类

实体类

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Account {
	private Long id;
	private String username;
	private String password;
	private Boolean enabled;
	private List<String> roles;
}

controller层

@RestController
public class VisitController {
	@RequestMapping("/visitAdminPage")
	public String visitAdminPage() {
		return "访问admin页面成功";
	}

	@RequestMapping("/visitUserPage")
	public String visitUserPage() {
		return "访问user页面成功";
	}

	@RequestMapping("/visitIndexPage")
	public String visitIndexPage() {
		return "访问index页面成功";
	}

}

入口类

@SpringBootApplication
public class SpringSecurityMybatisApplication {
	public static void main(String[] args) {
		SpringApplication.run(SpringSecurityMybatisApplication.class, args);
	}
}

4.创建配置类

数据源配置

@Configuration
@PropertySource(value = { "db.properties" })
public class DataSourceConfig {
	@Value("${url}")
	private String url;
	@Value("${dbname}")
	private String dbname;
	@Value("${dbpwd}")
	private String dbpwd;
	@Value("${driverClassName}")
	private String driverClassName;

	@Bean
	public DataSource configDataSource() {
		DruidDataSource dataSource = new DruidDataSource();
		dataSource.setDriverClassName(driverClassName);
		dataSource.setUrl(url);
		dataSource.setUsername(dbname);
		dataSource.setPassword(dbpwd);
		return dataSource;
	}
}

db.properties文件

url=jdbc:mysql://localhost:3306/springboot-security
dbname=root
dbpwd=root
driverClassName=com.mysql.jdbc.Driver

mybatis的配置类

@Configuration
@MapperScan(basePackages = {"com.hy.springboot.security.mybatis.mapper"})
@EnableTransactionManagement
public class MyBatisConfig {
	@Autowired
	DataSource dataSource; // mybatis需要数据源

	// 配置当前sql会话工厂
	@Bean("sqlSessionFactoryBean")
	public SqlSessionFactoryBean configSqlSessionFactoryBean() throws Exception {
		SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
		sqlSessionFactoryBean.setDataSource(dataSource);
		sqlSessionFactoryBean.setTypeAliasesPackage("com.hy.springboot.security.mybatis.entity");
		/* sqlSessionFactoryBean.setMapperLocations(mapperLocations); */
		return sqlSessionFactoryBean;
	}
}

SpringSecurity的配置类

@Configuration
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter {
	// 创建自定义的userDetailService用于获取用户信息
	@Bean
	protected UserDetailsService userDetailsService() {
		return new DefaultUserDetailsService();
	}

	class DefaultUserDetailsService implements UserDetailsService {
		@Autowired
		AccountMapper accountMapper;

		@Override
		public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
			if (username == null || "".equals(username.trim())) {
				throw new UsernameNotFoundException("用户名不能为空！");
			}
			Account account = accountMapper.findByUsername(username);
			if (account == null) {
				throw new UsernameNotFoundException("用户名不存在！");
			}
			Collection<GrantedAuthority> roles = new ArrayList<GrantedAuthority>();
			for (String roleName : account.getRoles()) {
				roles.add(new SimpleGrantedAuthority(roleName));
			}
			return new User(account.getUsername(), account.getPassword(), account.getEnabled(), true, true, true,
					roles);
		}

	}

	@Override
	protected void configure(AuthenticationManagerBuilder auth) throws Exception {
		// TODO Auto-generated method stub
		//BCryptPasswordEncoder使用这个加密方式
		// 本人不使用加密方式
		auth.userDetailsService(userDetailsService()).passwordEncoder(NoOpPasswordEncoder.getInstance());
	}
	


	@Override
	protected void configure(HttpSecurity http) throws Exception {
		http.authorizeRequests()
		.antMatchers("/visitAdminPage").hasRole("ADMIN")
		.antMatchers("/visitUserPage").hasRole("USER")// 所需要的格式为ROLE_USER,必须以ROLE_开头
		.anyRequest().authenticated()
		.and()
		.formLogin().successForwardUrl("/visitIndexPage").permitAll()
		.and().csrf().disable();
	}

}

5.创建Mapper类和Mapper的配置文件

public interface AccountMapper {
	Account findByUsername(String username);
}

<mapper
	namespace="com.hy.springboot.security.mybatis.mapper.AccountMapper">
	<resultMap type="account" id="tableAccount">
		<id column="id" property="id" />
		<result column="username" property="username" />
		<result column="password" property="password" />
		<result column="enabled" property="enabled" />
		<collection property="roles" ofType="String">
			<constructor>
				<arg column="roleName" />
			constructor>
		collection>
	resultMap>
	<select id="findByUsername" resultMap="tableAccount">
		SELECT u.*,r.`roleName`
		FROM security_mybatis_users u
		INNER JOIN security_mybatis_roles r ON r.`username`=u.`username`
		WHERE u.`username`=#{username}
	select>
mapper>

6.数据库的表创建

users表

role表

7.登录测试

然后各种页面测试都成功，用user登录也成功，权限校验也成功

8.总结

1.通过实现UserDetailsService方式默认只要进行通过用户名获取，密码校验是SpringSecurity来自动检查的，必须定义passwordEncoder方式，否则密码校验出现错误

2.SpringSecurity是提供了默认的登录页面，如果定义类登录的url则使用用户定义的登录页面

以上纯属个人见解，如有问题请联系本人！