list切分

    public static void main(String[] args) {
        int MAX_SEND = 500;
        List<Integer> list = new ArrayList<>();
        for (int i = 0; i < 1001; i++) {
            list.add(i);
        }
        int limit = list.size() / MAX_SEND +1;
        List<List<Integer>> splitList = Stream.iterate(0, n -> n + 1).limit(limit).parallel().map(a -> list.stream().skip(a * MAX_SEND).limit(MAX_SEND).parallel().collect(Collectors.toList())).collect(Collectors.toList());
        for (List<Integer> list1 : splitList) {
            System.out.println("---------------------------------------------");
            System.out.println(JSON.toJSONString(list1));
        }
    }