Shiro Quickstart

最新推荐文章于 2022-08-24 04:48:53 发布

王学政

最新推荐文章于 2022-08-24 04:48:53 发布

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分类专栏： shiro 文章标签： shiro

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本文通过一个实战案例介绍Shiro框架的使用方法，包括初始化SecurityManager、用户登录、权限验证及登出流程。同时展示了如何设置Session并进行基本的数据交互。

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Quickstart.java

public class Quickstart {

    private static final transient Logger log = LoggerFactory.getLogger(Quickstart.class);


    public static void main(String[] args) {

        Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
        SecurityManager securityManager = factory.getInstance();
        SecurityUtils.setSecurityManager(securityManager);

        // 获取当前的Subject
        Subject currentUser = SecurityUtils.getSubject();

        // 测试使用Session
        // 获取Session
        Session session = currentUser.getSession();
        session.setAttribute("someKey", "aValue");
        String value = (String) session.getAttribute("someKey");
        if (value.equals("aValue")) {
            log.info("---> Retrieved the correct value! [" + value + "]");
        }

        // 测试当前的用户是否已经被认证，即是否已经登陆
        // 调用Subject的isAuthenticated
        if (!currentUser.isAuthenticated()) {
            // 把用户名和密码封装为UsernamePasswordToken 对象
            UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
            token.setRememberMe(true);
            try {
                // 执行登陆
                currentUser.login(token);
            } 
            // 没有指定的账户，则Shiro会抛出 UnknownAccountException
            catch (UnknownAccountException uae) {
                log.info("----> There is no user with username of " + token.getPrincipal());
                return; 
            } 
            // 账户存在，密码错误 ，则Shiro会抛出 IncorrectCredentialsException
            catch (IncorrectCredentialsException ice) {
                log.info("----> Password for account " + token.getPrincipal() + " was incorrect!");
                return; 
            } 
            // 用户被锁定的异常
            catch (LockedAccountException lae) {
                log.info("The account for username " + token.getPrincipal() + " is locked.  " +
                        "Please contact your administrator to unlock it.");
            }
            catch (AuthenticationException ae) {
            }
        }

        log.info("----> User [" + currentUser.getPrincipal() + "] logged in successfully.");

        // 是否有某一个角色
        if (currentUser.hasRole("schwartz")) {
            log.info("----> May the Schwartz be with you!");
        } else {
            log.info("----> Hello, mere mortal.");
            return; 
        }

        // 用户是否具备某一个行为 ，调用Subject的isPermitted方法
        if (currentUser.isPermitted("lightsaber:weild")) {
            log.info("----> You may use a lightsaber ring.  Use it wisely.");
        } else {
            log.info("Sorry, lightsaber rings are for schwartz masters only.");
        }

        if (currentUser.isPermitted("user:delete:zhangsan")) {
            log.info("----> You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.  " +
                    "Here are the keys - have fun!");
        } else {
            log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");
        }

        System.out.println("---->" + currentUser.isAuthenticated());

        // 执行登出
        currentUser.logout();

        System.out.println("---->" + currentUser.isAuthenticated());

        System.exit(0);
    }
}