java - JSONArray问题。。。.

public Map delete(JSONObject head, JSONObject body)
            throws Exception {
        Map attributes=new HashMap();
        JSONArray couponJson=body.optJSONArray("couponId");
         
            String token=head.optString("token");
        Object object=UserCacheManage.getAppUser(token);
        
        //if(object!=null){
        //UserCache user=(UserCache)object;
        String userId="4028668150c6aedb0150c6ddde750005";
        HhUserEntity hhUserEntity=super.getEntity(HhUserEntity.class, userId);
        if(hhUserEntity!=null){
            String ids="";
            Object [] couponIds=(Object[])couponJson.toArray();
            if(couponIds!=null&&couponIds.length>0){
                for(int i=0;i list = super.findByQueryString(hql);
            if(list!=null&&list.size()>0){
                super.deleteAllEntitie(list);
            }

我要取到couponId然后批量删除实体，但是body.optJSONArray("couponId")得到的是object类型不是jsonarry类型，这怎么办- -