对List<Map<String,Object>>进行排序

List<Map<String, Object>> list = new ArrayList<>();Collections.sort(list, new Comparator<Map<String, Object>>() {            @Override            public int compare(Map<String, Object> o1, Map<String, Object> o2) {                Integer s1 = (Integer) o1.get("signCount");                Integer s2 = (Integer) o2.get("signCount");                return s2 - s1;            }        });