spring security 权限控制

前言

spring 自带角色权限控制框架

用户-角色

数据库和 domain

• 数据库

-- 用户表
CREATE TABLE sys_user(
id int auto_increment PRIMARY KEY ,
username VARCHAR(50),
email VARCHAR(50) ,
PASSWORD VARCHAR(80),
phoneNum VARCHAR(20),
STATUS int(1)
);

-- 角色表
CREATE TABLE sys_role(
	id int auto_increment PRIMARY KEY,
	roleName VARCHAR(50) ,
	roleDesc VARCHAR(50)
)
-- 用户和角色中间表
CREATE TABLE sys_user_role(
	userId int,
	roleId int,
    PRIMARY KEY(userId,roleId),
	FOREIGN KEY (userId) REFERENCES sys_USER(id),
	FOREIGN KEY (roleId) REFERENCES sys_role(id)
)
​

• domain

public class SysUser {
    private Long id;
    private String username;
    private String email;
    private String password;
    private String phoneNum;
    private int status;
    private List<Role> roles;
}
public class Role {
    private Long id;
    private String roleName;
    private String roleDesc;
}
​

静态页面

403.jsp
login.jsp
error.jsp

配置文件

springSecurity.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:security="http://www.springframework.org/schema/security"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans          
    http://www.springframework.org/schema/beans/spring-beans.xsd          
    http://www.springframework.org/schema/security          
    http://www.springframework.org/schema/security/spring-security.xsd">

    <!--放行未登录访问的页面-->
    <security:http pattern="/login.jsp" security="none"></security:http>
    <security:http pattern="/error.jsp" security="none"></security:http>
	<security:http pattern="/css/**" security="none"></security:http>
	<security:http pattern="/img/**" security="none"></security:http>
	<security:http pattern="/pages/**" security="none"></security:http>
	<security:http pattern="/plugins/**" security="none"></security:http>
	<!--配置拦截器的路径规则
	auto-config="true" 表示使用权限框架默认的配置
	use-expressions="false" 关闭权限框架的表达式 spel
	intercept-url  拦截请求资源的路径
	access="ROLE_USER" 允许访问的条件  当前用户必须拥有ROLE_USER的角色才可以访问
	-->
	<security:http auto-config="true" use-expressions="true">
		<!--权限框架支持多种角色的登录 角色之间的关系为or 或者的关系-->
		<security:intercept-url pattern="/**" access="hasAnyRole('ROLE_USER','ROLE_ADMIN')"></security:intercept-url>
	    <!--自定义页面的配置节点-->
        <security:form-login login-page="/login.jsp"
                                login-processing-url="/login"
                                default-target-url="/index.jsp"
                                authentication-failure-url="/error.jsp"></security:form-login>

        <!--登录成功权限不足的处理-->
        <security:access-denied-handler error-page="/403.jsp"></security:access-denied-handler>
        <!--csrf关闭跨域请求的攻击-->
        <security:csrf disabled="true"></security:csrf>
		<!--
		logout 退出请求的url路径 实际是页面点击按钮请求的地址
		logout-success-url 成功注销后 跳转的页面
		invalidate-session 设置session失效
		-->
		<security:logout logout-url="/logOut" logout-success-url="/login.jsp" invalidate-session="true"></security:logout>

    </security:http>

	<!--配置拦截后验证的节点-->
	<security:authentication-manager>
		<security:authentication-provider user-service-ref="userService">
			<!--自定义的加密工具类-->
			<security:password-encoder ref="pwdEncoder"></security:password-encoder>
		</security:authentication-provider>
	</security:authentication-manager>
	
	<!--配置自定义的加密工具类，这里使用自带的-->
	<bean id="pwdEncoder" class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder"></bean>
	
	<!--开启注解支持-->
	<security:global-method-security secured-annotations="enabled"/>

</beans>
​

web.xml 引入

• 引入 filter

<!--配置框架使用的filter过滤器-->
<filter>
    <!--过滤器执行链名臣固定springSecurityFilterChain-->
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>
​

• 引入配置文件

<!--spring的listener-->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml,classpath:springSecurity.xml</param-value>
</context-param>
​

service 校验方法

• 在 service 中继承 spring 接口

public interface SysUserService extends UserDetailsService {
    @Override
    UserDetails loadUserByUsername(String username) throws UsernameNotFoundException;
}

​

• 实现接口

@Service("userService")
public class SysUserServiceImpl implements SysUserService {

    @Autowired
    private SysUserDao userDao;

    @Autowired
    BCryptPasswordEncoder pwdEncoder;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //得到数据库的用户
        SysUser sysUser =  userDao.findUserByName(username);
        //框架的User对象用于验证返回 用户名 密码 用户的权限集合
        //查询得到用户真正的角色集合返回
        List<Role> roles =sysUser.getRoles();
        List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
        ///如果当前用户确实拥有角色 循环添加到集合中
        if(roles!=null&&roles.size()>0){
            for (Role role : roles) {
                authorities.add(new SimpleGrantedAuthority(role.getRoleName()));
            }
        }

        User user = new User(sysUser.getUsername(),sysUser.getPassword(),authorities);
        return user;

    }
}

​

用户名的获取

• 前台获取

# 方式一
${ sessionScope.SPRING_SECURITY_CONTEXT.authentication.principal.username }

# 方式二
<security:authentication property="principal.username"/>
​

• 后台获取

// 先获取到SecurityContext对象
SecurityContext context = SecurityContextHolder.getContext();
// 获取到认证的对象
Authentication authentication = context.getAuthentication();
// 获取到登录的用户信息
User user = (User) authentication.getPrincipal();
System.out.println(user.getUsername());
​

不同角色访问控制权限

jsp 页面

<security:authorize access="hasAnyRole('ROLE_USER','ROLE_ADMIN')">
  <li id="system-setting">
  <a href="${pageContext.request.contextPath}/product/findByPageHelper">
  <i class="fa fa-circle-o"></i> 产品管理
  </a>
  </li>
</security:authorize>
​

后台

• springmcv.xml

<!--手打才能自动引入-->
<security:global-method-security secured-annotations="enabled"></security:global-method-security>
​

• controller

@Secured("ROLE_ADMIN")
public class RoleController
​