java 将json转成map java json对象转map

JSONObject转换成Map对象

String result = sendRequest(jsonObject.toString(), 2L, url);　　//json字符串
JSONObject res = JSONObject.fromObject(result);
if ("true".equals(res.getString("status"))) {
   JSONObject data = res.getJSONObject("data");
   Iterator it = data.keys();
   // 遍历jsonObject数据，添加到Map对象
   while (it.hasNext()){<br>      //通过key获取value
      String key = String.valueOf(it.next());
      Double value = data.getDouble(key);
      map.put(key, value);
   }
}//第二种  效率更高，key和value同时获取，适用于大数据量
Iterator it =data.entrySet().iterator();
while (it.hasNext()) {
   Map.Entry<String, Object> entry = (Map.Entry<String, Object>) it.next();
   map.put(entry.getKey(), entry.getValue());
}