Caused by: java.lang.ClassCastException: com.alibaba.fastjson.JSONObject cannot be cast to com.picchealth.hmbms.payment.pojo.Settle

json对象的转换问题：

  Object aa = map.get("settleList");
//        for (int i = 0; i < settleList.size(); i++) {
//            Settle settle = settleList.get(i);
//            System.out.println(settle);
//        }

        String result=JSON.toJSONString(aa);
//        List settleList = (List) JSONArray.(jsonObjString, Settle.class);
        List settles = JSONArray.parseArray(result, Settle.class);
        settles.get(1).getBatchNo();
这样写就不报错了