@Override
    public RuleDO findBySelectorIdAndName(final String selectorId, final String name) {
        return ruleMapper.findBySelectorIdAndName(selectorId, name);
    }
find page of rule by query.

@param ruleQuery {@linkplain RuleQuery}
@return {@linkplain CommonPager}
shenyu-admin/src/main/java/org/apache/shenyu/admin/service/impl/RuleServiceImpl.java