zoukankan      html  css  js  c++  java
  • 递归方法遍历多层传参

    public static void paramter(Object object) {

    //判断传入参数是否为Null
    if (object != null) {
    if (object instanceof String || object instanceof Integer || object instanceof Long || object instanceof Float || object instanceof Boolean
    || object instanceof Double) {
    System.out.println(object);
    } else if (object instanceof Date) {
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
    System.out.println(sdf.format(object));
    } else if (object instanceof List) {
    List li = (List) object;
    for (int j = 0; j < li.size(); j++) {
    paramter(li.get(j));
    }
    } else if (object instanceof Map) {
    Map<String, Object> map = (Map<String, Object>) object;
    Set<String> mapset = map.keySet();
    for (String string : mapset) {
    paramter(map.get(string));
    }
    }
    }
    }

    public static void main(String[] args) {
    List list1 = new ArrayList();
    List list2 = new ArrayList();
    List list3 = new ArrayList();
    Map<String, String> map = new HashMap<String, String>();
    map.put("id1", "wang");
    map.put("id2", "sheng");
    list3.add(map);
    list3.add(12);
    list3.add(13);
    list3.add(true);
    list3.add(new Date());
    list2.add(list3);
    list2.add("aa");
    list2.add("bb");
    list1.add(list2);
    paramter(list1);
    }

  • 相关阅读:
    TableExport导出失败问题
    gitlab备份、恢复、升级
    读书笔记一【加密——替换法】
    读书笔记一【加密——换位法】
    解决Kettle ETL数据乱码
    SQL中exsit和in
    Centos下搭建邮件服务器
    2018总结及2019计划
    mac安装gcc
    Vue.js学习 Item11 – 组件与组件间的通信
  • 原文地址:https://www.cnblogs.com/tiansan/p/7261784.html
Copyright © 2011-2022 走看看