关于shiro动态刷新缓存

最近在学习shiro框架,也借鉴了公司的项目.但发现公司的项目shiro这一块并没有实现动态刷新缓存功能.

废话不多说,直接进入主题.

网上各种教程所说的直接调用clearCache()方法并不能清空缓存,只能自己编写代码来实现清空缓存.

代码如下:

 //清空缓存
    public void clearCache() {
        RealmSecurityManager rsm = (RealmSecurityManager) SecurityUtils.getSecurityManager();
        //AccountAuthorizationRealm为在项目中定义的realm类
        UserRealm shiroRealm = (UserRealm) rsm.getRealms().iterator().next();
        Subject subject = SecurityUtils.getSubject();
        String realmName = subject.getPrincipals().getRealmNames().iterator().next();
        Object principal = subject.getPrincipal();
        SimplePrincipalCollection principals = new SimplePrincipalCollection(subject.getPrincipal(), realmName);
        subject.runAs(principals);
        //用realm删除principle
        shiroRealm.getAuthorizationCache().remove(subject.getPrincipals());
        //切换身份也就是刷新了
        subject.releaseRunAs();

    }