<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;
  }
}

@Component
public class UserRealm extends AuthorizingRealm {
  @Resource
  private SysUserMapper sysUserMapper ;
  @Resource
  private SysMenuMapper sysMenuMapper ;
  /**
   * 授權(quán)(驗證權(quán)限時調(diào)用)
   * 獲取用戶權(quán)限集合
   */
  @Override
  public AuthorizationInfo doGetAuthorizationInfo
  (PrincipalCollection principals) {
    SysUserEntity user = (SysUserEntity)principals.getPrimaryPrincipal();
    if(user == null) {
      throw new UnknownAccountException("賬號不存在");
    }
    List<String> permsList;
    //默認(rèn)用戶擁有最高權(quán)限
    List<SysMenuEntity> menuList = sysMenuMapper.selectList();
    permsList = new ArrayList<>(menuList.size());
    for(SysMenuEntity menu : menuList){
      permsList.add(menu.getPerms());
    }
    //用戶權(quán)限列表
    Set<String> permsSet = new HashSet<>();
    for(String perms : permsList){
      if(StringUtils.isEmpty(perms)){
        continue;
      }
      permsSet.addAll(Arrays.asList(perms.trim().split(",")));
    }
    SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
    info.setStringPermissions(permsSet);
    return info;
  }
  /**
   * 認(rèn)證(登錄時調(diào)用)
   * 驗證用戶登錄
   */
  @Override
  protected AuthenticationInfo doGetAuthenticationInfo(
      AuthenticationToken authToken) throws AuthenticationException {
    UsernamePasswordToken token = (UsernamePasswordToken)authToken;
    //查詢用戶信息
    SysUserEntity user = sysUserMapper.selectOne(token.getUsername());
    //賬號不存在
    if(user == null) {
      throw new UnknownAccountException("賬號或密碼不正確");
    }
    //賬號鎖定
    if(user.getStatus() == 0){
      throw new LockedAccountException("賬號已被鎖定,請聯(lián)系管理員");
    }
    SimpleAuthenticationInfo info = new SimpleAuthenticationInfo
        (user, user.getPassword(),
            ByteSource.Util.bytes(user.getSalt()),
            getName());
    return info;
  }
  @Override
  public void setCredentialsMatcher(CredentialsMatcher credentialsMatcher) {
    HashedCredentialsMatcher shaCredentialsMatcher = new HashedCredentialsMatcher();
    shaCredentialsMatcher.setHashAlgorithmName(ShiroUtils.hashAlgorithmName);
    shaCredentialsMatcher.setHashIterations(ShiroUtils.hashIterations);
    super.setCredentialsMatcher(shaCredentialsMatcher);
  }
}

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();
  }
}
5、自定義權(quán)限異常提示
@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" ;
  }
}