提取多层嵌套JSON类型数据

数据实例：

{    "error": 0,    "status": "success",    "results": [        {            "currentCity": "青岛",            "index": [                {                    "title": "穿衣",                    "zs": "较冷",                    "tipt": "穿衣指数",                    "des": "建议着厚外套加毛衣等服装。年老体弱者宜着大衣、呢外套加羊毛衫。"                },                {                    "title": "紫外线强度",                    "zs": "中等",                    "tipt": "紫外线强度指数",                    "des": "属中等强度紫外线辐射天气，外出时建议涂擦SPF高于15、PA+的防晒护肤品，戴帽子、太阳镜。"                }            ]        }    ]}

代码如下：

package com.iteam.test;import net.sf.json.JSONArray;import net.sf.json.JSONObject;public class Test {public static void main(String[] args) {    String s = "{\"error\":0,\"status\":\"success\",\"results\":[{\"currentCity\":\"青岛\",\"index\":[{\"title\":\"穿衣\",\"zs\":\"较冷\",\"tipt\":\"穿衣指数\",\"des\":\"建议着厚外套加毛衣等服装。年老体弱者宜着大衣、呢外套加羊毛衫。\"},{\"title\":\"紫外线强度\",\"zs\":\"最弱\",\"tipt\":\"紫外线强度指数\",\"des\":\"属弱紫外线辐射天气，无需特别防护。若长期在户外，建议涂擦SPF在8-12之间的防晒护肤品。\"}],}]}";    JSONObject jsonObject = JSONObject.fromObject(s);    //提取出error为 0    int error = jsonObject.getInt("error");    System.out.println("error:" + error);    //提取出status为 success    String status = jsonObject.getString("status");    System.out.println("status:" + status);        //注意：results中的内容带有中括号[]，所以要转化为JSONArray类型的对象    JSONArray result = jsonObject.getJSONArray("results");    for (int i = 0; i < result.size(); i++) {        //提取出currentCity为 青岛        String currentCity = result.getJSONObject(i).getString("currentCity");        System.out.println("currentCity:" + currentCity);        //注意：index中的内容带有中括号[]，所以要转化为JSONArray类型的对象        JSONArray index = result.getJSONObject(i).getJSONArray("index");        for (int j = 0; j < index.size(); j++) {            String title = index.getJSONObject(j).getString("title");            System.out.println("title:" + title);            String zs = index.getJSONObject(j).getString("zs");            System.out.println("zs:" + zs);            String tipt = index.getJSONObject(j).getString("tipt");            System.out.println("tipt:" + tipt);            String des = index.getJSONObject(j).getString("des");            System.out.println("des:" + des);        }    }}}