DemoAccessDecisionManager.java 文件源码

@Override
public void decide(Authentication authentication, Object object, Collection<ConfigAttribute> configAttributes) throws AccessDeniedException, InsufficientAuthenticationException {
    if (configAttributes == null) {
        return;
    }

    for (ConfigAttribute ca : configAttributes) {
        String needRole = ca.getAttribute();
        //ga 为用户所被赋予的权限。 needRole 为访问相应的资源应该具有的权限。
        for (GrantedAuthority ga : authentication.getAuthorities()) {
            if (needRole.trim().equals(ga.getAuthority().trim())) {
                return;
            }
        }
    }

    throw new AccessDeniedException("没有权限进行操作！");
}