<dependency>
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-core</artifactId>
    <version>1.4.0</version>
</dependency>
<dependency>
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-spring</artifactId>
    <version>1.4.0</version>
</dependency>

@Configuration
public class ShiroConfig {
    /**
     * Session Manager：會話管理
     * 即用戶登錄后就是一次會話，在沒有退出之前，它的所有信息都在會話中；
     * 會話可以是普通JavaSE環(huán)境的，也可以是如Web環(huán)境的；
     */
    @Bean("sessionManager")
    public SessionManager sessionManager(){
        DefaultWebSessionManager sessionManager = new DefaultWebSessionManager();
        //設(shè)置session過期時間
        sessionManager.setGlobalSessionTimeout(60 * 60 * 1000);
        sessionManager.setSessionValidationSchedulerEnabled(true);
        // 去掉shiro登錄時url里的JSESSIONID
        sessionManager.setSessionIdUrlRewritingEnabled(false);
        return sessionManager;
    }

    /**
     * SecurityManager：安全管理器
     */
    @Bean("securityManager")
    public SecurityManager securityManager(UserRealm userRealm, SessionManager sessionManager) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        securityManager.setSessionManager(sessionManager);
        securityManager.setRealm(userRealm);
        return securityManager;
    }
    /**
     * ShiroFilter是整個Shiro的入口點，用于攔截需要安全控制的請求進(jìn)行處理
     */
    @Bean("shiroFilter")
    public ShiroFilterFactoryBean shiroFilter(SecurityManager securityManager) {
        ShiroFilterFactoryBean shiroFilter = new ShiroFilterFactoryBean();
        shiroFilter.setSecurityManager(securityManager);
        shiroFilter.setLoginUrl("/userLogin");
        shiroFilter.setUnauthorizedUrl("/");
        Map<String, String> filterMap = new LinkedHashMap<>();
        filterMap.put("/userLogin", "anon");
        shiroFilter.setFilterChainDefinitionMap(filterMap);
        return shiroFilter;
    }
    /**
     * 管理Shiro中一些bean的生命周期
     */
    @Bean("lifecycleBeanPostProcessor")
    public LifecycleBeanPostProcessor lifecycleBeanPostProcessor() {
        return new LifecycleBeanPostProcessor();
    }
    /**
     * 掃描上下文，尋找所有的Advistor(通知器）
     * 將這些Advisor應(yīng)用到所有符合切入點的Bean中。
     */
    @Bean
    public DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator() {
        DefaultAdvisorAutoProxyCreator proxyCreator = new DefaultAdvisorAutoProxyCreator();
        proxyCreator.setProxyTargetClass(true);
        return proxyCreator;
    }
    /**
     * 匹配所有加了 Shiro 認(rèn)證注解的方法
     */
    @Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(SecurityManager securityManager) {
        AuthorizationAttributeSourceAdvisor advisor = new AuthorizationAttributeSourceAdvisor();
        advisor.setSecurityManager(securityManager);
        return advisor;
    }
}

public class ShiroUtils {
    /**  加密算法 */
    public final static String hashAlgorithmName = "SHA-256";
    /**  循環(huán)次數(shù) */
    public final static int hashIterations = 16;
    public static String sha256(String password, String salt) {
        return new SimpleHash(hashAlgorithmName, password, salt, hashIterations).toString();
    }
    // 獲取一個測試賬號 admin
    public static void main(String[] args) {
        // 3743a4c09a17e6f2829febd09ca54e627810001cf255ddcae9dabd288a949c4a
        System.out.println(sha256("admin","123")) ;
    }
    /**
     * 獲取會話
     */
    public static Session getSession() {
        return SecurityUtils.getSubject().getSession();
    }
    /**
     * Subject：主體，代表了當(dāng)前“用戶”
     */
    public static Subject getSubject() {
        return SecurityUtils.getSubject();
    }
    public static SysUserEntity getUserEntity() {
        return (SysUserEntity)SecurityUtils.getSubject().getPrincipal();
    }
    public static Long getUserId() {
        return getUserEntity().getUserId();
    }
    public static void setSessionAttribute(Object key, Object value) {
        getSession().setAttribute(key, value);
    }
    public static Object getSessionAttribute(Object key) {
        return getSession().getAttribute(key);
    }
    public static boolean isLogin() {
        return SecurityUtils.getSubject().getPrincipal() != null;
    }
    public static void logout() {
        SecurityUtils.getSubject().logout();
    }
}

@RestControllerAdvice
public class ShiroException {
    @ExceptionHandler(AuthorizationException.class)
    public String authorizationException (){
        return "抱歉您沒有權(quán)限訪問該內(nèi)容!";
    }
    @ExceptionHandler(Exception.class)
    public String handleException(Exception e){
        return "系統(tǒng)異常!";
    }
}

@RestController
public class ShiroController {
    private static Logger LOGGER = LoggerFactory.getLogger(ShiroController.class) ;
    @Resource
    private SysMenuMapper sysMenuMapper ;
    /**
     * 登錄測試
     * http://localhost:7011/userLogin?userName=admin&passWord=admin
     */
    @RequestMapping("/userLogin")
    public void userLogin (
            @RequestParam(value = "userName") String userName,
            @RequestParam(value = "passWord") String passWord){
        try{
            Subject subject = ShiroUtils.getSubject();
            UsernamePasswordToken token = new UsernamePasswordToken(userName, passWord);
            subject.login(token);
            LOGGER.info("登錄成功");
        }catch (Exception e) {
            e.printStackTrace();
        }
    }
    /**
     * 服務(wù)器每次重啟請求該接口之前必須先請求上面登錄接口
     * http://localhost:7011/menu/list 獲取所有菜單列表
     * 權(quán)限要求：sys:user:shiro
     */
    @RequestMapping("/menu/list")
    @RequiresPermissions("sys:user:shiro")
    public List list(){
        return sysMenuMapper.selectList() ;
    }
    /**
     * 用戶沒有該權(quán)限，無法訪問
     * 權(quán)限要求：ccc:ddd:bbb
     */
    @RequestMapping("/menu/list2")
    @RequiresPermissions("ccc:ddd:bbb")
    public List list2(){
        return sysMenuMapper.selectList() ;
    }
    /**
     * 退出測試，退出后沒有任何權(quán)限
     */
    @RequestMapping("/userLogOut")
    public String logout (){
        ShiroUtils.logout();
        return "success" ;
    }
}