zoukankan      html  css  js  c++  java
  • alibaba fastjson List<Map<String, String>>2Str

    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;

    import com.alibaba.fastjson.JSON;
    import com.alibaba.fastjson.JSONArray;

     
    public class ListMap2Json {
     
        /**
         * @param Lavender
         */
        public static void main(String[] args) {
            Map<String,String> map1 = new HashMap<String,String>();
            Map<String,String> map2 = new HashMap<String,String>();
            Map<String,String> map3 = new HashMap<String,String>();
            List<Map<String,String>> list = new ArrayList<Map<String,String>>();
            map1.put("name","小明");
            map1.put("age","23");
            map1.put("sex","男");
            list.add(map1);
     
            map2.put("name","小王");
            map2.put("age","24");
            map2.put("sex","女");
            list.add(map2);
     
            map3.put("name","小张");
            map3.put("age","22");
            map3.put("sex","男");
            list.add(map3);
        
            String jsonStr = JSON.toJSONString(list);
            System.out.println(jsonStr);
            
            List<HashMap<String, String>> listMap = new ArrayList<HashMap<String, String>>();

        //string to Object
            listMap = JSON.parseObject(jsonStr, List.class);
            System.out.println(JSON.toJSONString(listMap));
          
     
        }
     
    }

  • 相关阅读:
    android spinner学习
    cookie的学习笔记三(做俩个小练习);
    Cookie的细节具体保存的有效时间
    cookie技术核心! 就是四个类的应用 搞懂这个基本上就把这个搞定了!
    学习Servlet的重要应用 在什么地方用写路径
    数组空值empty
    ios学习杂记
    ios广告封装
    Runtime
    UIImage分类,设置边框
  • 原文地址:https://www.cnblogs.com/herosoft/p/5717792.html
Copyright © 2011-2022 走看看