JSON数组形式字符串转换为List

//从Package包下的中取key的值拼接成地址
String wholeUrl = (key, Package) + url;// 请求地址
//从URL中获取JSON数据
String result = (wholeUrl, "");
//取出JSON数据{"dayRange":[{"TOTAL":1,"DATE":"07-18"},{"TOTAL":2,"DATE":"07-19"}]}
JSONObject json = (result);
//取出dayRange对应的数组[{},{}]
//JSONArray itemData = (JSONArray) (item);
//取出的数组放在list中[{key1=value1,key2=value2},{}]
List<Map<String, String>> itemList = (List<Map<String, String>>)(item);

JSON数组形式字符串转换为List<Map<String,String>>方法：

List<Map<String, String>> itemList = (List<Map<String, String>>)(item);

 

List<Map<String,Object>>打印输出效果[{3=dong,2=xiao,1=wang,4=haha},{3=dong,2=xiao,1=wang,4=haha}]

list集合里的有两条map集合，每条map集合中有4个<key,value>对

 

List打印是：[{}，{}]

Map打印是：key1=value1，key2=value2