Json解析数组对象

看了Gson、FastJson解析，确实简便了很多，但是如果key关键字有重复的怎么办呢，

而且我要解析的Json比较复杂，综合后还是考虑用JsonObject、JsonArray比较好

下面我按部分来说明

1 这是最简单的一种

"pm25":{"key":"Hefei","show_desc":0,"pm25":{"curPm":"112","pm25":"84","pm10":"114","level":3,"quality":"轻度污染","des":"轻微污染 易感人群症状有轻度加剧，健康人群出现刺激症状 心脏病和呼吸系统疾病患者应减少体力消耗和户外活动。"},"dateTime":"2016年10月06日11时","cityName":"合肥"},

如下：

///解析当前空气JSONObject  data = new JSONObject(resultString);//resultString是需要解析的字符串JSONObject pM25JsonObject = data.getJSONObject("pm25");JSONObject curPm25JsonObject =pM25JsonObject.getJSONObject("pm25");Log.i("当前PM25:",curPm25JsonObject.getString("curPm"));Log.i("当前空气等级:",curPm25JsonObject.getString("level"));Log.i("当前空气质量:",curPm25JsonObject.getString("quality"));Log.i("当前空气描述:",curPm25JsonObject.getString("des"));

2  对象里是数组

"info":{"chuanyi":["舒适","建议着长袖T恤、衬衫加单裤等服装。年老体弱者宜着针织长袖衬衫、马甲和长裤。"],"ganmao":["较易发","虽然温度适宜但风力较大，仍较易发生感冒，体质较弱的朋友请注意适当防护。"],"kongtiao":["较少开启","您将感到很舒适，一般不需要开启空调。"],"xiche":["不宜","不宜洗车，未来24小时内有雨，如果在此期间洗车，雨水和路上的泥水可能会再次弄脏您的爱车。"],"yundong":["较适宜","阴天，较适宜进行各种户内外运动。"],"ziwaixian":["最弱","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。"]}

如下：JSONObject info = new JSONObject(string);Iterator it = info.keys();///chuanyi   ganmao while(it.hasNext()){String key = (String)it.next();JSONArray  indexArray = info.getJSONArray(key);if(key.equals("chuanyi")){Log.i("穿衣是:", "指数:"+indexArray.getString(0)+"   描述:"+indexArray.getString(1));}if(key.equals("ganmao")){Log.i("感冒是:", "指数:"+indexArray.getString(0)+"   描述:"+indexArray.getString(1));}if(key.equals("kongtiao")){Log.i("空调是:", "指数:"+indexArray.getString(0)+"   描述:"+indexArray.getString(1));}if(key.equals("xiche")){Log.i("洗车是:", "指数:"+indexArray.getString(0)+"   描述:"+indexArray.getString(1));}if(key.equals("yundong")){Log.i("运动是:", "指数:"+indexArray.getString(0)+"   描述:"+indexArray.getString(1));}if(key.equals("ziwaixian")){Log.i("紫外线是:", "指数:"+indexArray.getString(0)+"   描述:"+indexArray.getString(1));}}

3 对象数组对象

"f3h":{"temperature":[{"jg":"20161006110000","jb":"23"},{"jg":"20161006140000","jb":"25"},{"jg":"20161006170000","jb":"25"},{"jg":"20161006200000","jb":"22"},{"jg":"20161006230000","jb":"21"},{"jg":"20161007020000","jb":"20"},{"jg":"20161007050000","jb":"20"},{"jg":"20161007080000","jb":"20"},{"jg":"20161007110000","jb":"22"}]}

如下：

                                JSONObject f3h = new JSONObject(string);JSONArray f3hTemperatureArray = f3h.getJSONArray("temperature");Log.i("24h的预测温度:", "时间:"+f3hTemperatureArray.getJSONObject(0).getString("jg")+"   温度:"+f3hTemperatureArray.getJSONObject(0).getString("jb"));Log.i("24h的预测温度:", "时间:"+f3hTemperatureArray.getJSONObject(1).getString("jg")+"   温度:"+f3hTemperatureArray.getJSONObject(1).getString("jb"));Log.i("24h的预测温度:", "时间:"+f3hTemperatureArray.getJSONObject(2).getString("jg")+"   温度:"+f3hTemperatureArray.getJSONObject(2).getString("jb"));Log.i("24h的预测温度:", "时间:"+f3hTemperatureArray.getJSONObject(3).getString("jg")+"   温度:"+f3hTemperatureArray.getJSONObject(3).getString("jb"));Log.i("24h的预测温度:", "时间:"+f3hTemperatureArray.getJSONObject(4).getString("jg")+"   温度:"+f3hTemperatureArray.getJSONObject(4).getString("jb"));Log.i("24h的预测温度:", "时间:"+f3hTemperatureArray.getJSONObject(5).getString("jg")+"   温度:"+f3hTemperatureArray.getJSONObject(5).getString("jb"));Log.i("24h的预测温度:", "时间:"+f3hTemperatureArray.getJSONObject(6).getString("jg")+"   温度:"+f3hTemperatureArray.getJSONObject(6).getString("jb"));Log.i("24h的预测温度:", "时间:"+f3hTemperatureArray.getJSONObject(7).getString("jg")+"   温度:"+f3hTemperatureArray.getJSONObject(7).getString("jb"));Log.i("24h的预测温度:", "时间:"+f3hTemperatureArray.getJSONObject(8).getString("jg")+"   温度:"+f3hTemperatureArray.getJSONObject(8).getString("jb"));

4 数组对象对象数组

  "weather":[{"date":"2016-10-07","info":{"dawn":["7","小雨","19","东北风","4-5 级","17:49"],"day":["7","小雨","22","东北风","3-4 级","06:08"],"night":["1","多云","17","西南风","微风","17:48"]},"week":"五","nongli":"九月初七"},{"date":"2016-10-08","info":{"dawn":["1","多云","17","西南风","微风","17:48"],"day":["1","多云","24","东北风","微风","06:09"],"night":["1","多云","16","东北风","3-4 级","17:47"]},"week":"六","nongli":"九月初八"}        ]

如下：

JSONArray weather_array = new JSONArray(string);// ////////////////////////////////////////////////////////////////////////当天Log.i("今天的阳历是：", weather_array.getJSONObject(0).getString("date"));Log.i("今天的星期是：", weather_array.getJSONObject(0).getString("week"));Log.i("今天的农历是：", weather_array.getJSONObject(0).getString("nongli"));JSONObject today_info = weather_array.getJSONObject(0).getJSONObject("info");Iterator today_it = today_info.keys();while (today_it.hasNext()) {String today_key = (String) today_it.next();JSONArray today_weather_info_array = today_info.getJSONArray(today_key);/*             "day": [                            "7",                             "小雨",                             "25",                             "东北风",                             "4-5 级",                             "06:08"                        ], */if (today_key.equals("dawn")) {Log.i("今天凌晨的温度是:", today_weather_info_array.getString(2));}if (today_key.equals("day")) {Log.i("今天白天的天气标识是:", today_weather_info_array.getString(0));Log.i("今天白天的天气是:", today_weather_info_array.getString(1));Log.i("今天白天的温度是:", today_weather_info_array.getString(2));Log.i("今天白天的风向是:", today_weather_info_array.getString(3));Log.i("今天白天的风力是:", today_weather_info_array.getString(4));Log.i("今天白天的日出时间是:", today_weather_info_array.getString(5));}if (today_key.equals("night")) {Log.i("今天夜间的天气标识是:", today_weather_info_array.getString(0));Log.i("今天夜间的天气是:", today_weather_info_array.getString(1));Log.i("今天夜间的温度是:", today_weather_info_array.getString(2));Log.i("今天夜间的风向是:", today_weather_info_array.getString(3));Log.i("今天夜间的风力是:", today_weather_info_array.getString(4));Log.i("今天夜间的日落时间是:", today_weather_info_array.getString(5));}}///while,遍历三个时间段的循环// ////////////////////////////////////////////////////////////////////////第2天Log.i("第2天的阳历是：", weather_array.getJSONObject(1).getString("date"));Log.i("第2天的星期是：", weather_array.getJSONObject(1).getString("week"));Log.i("第2天的农历是：", weather_array.getJSONObject(1).getString("nongli"));JSONObject day2_info = weather_array.getJSONObject(1).getJSONObject("info");Iterator day2_it = day2_info.keys();while (day2_it.hasNext()) {String day2_key = (String) day2_it.next();JSONArray day2_weather_info_array = day2_info.getJSONArray(day2_key);/*             "day": [                            "7",                             "小雨",                             "25",                             "东北风",                             "4-5 级",                             "06:08"                        ], */if (day2_key.equals("dawn")) {Log.i("第2天凌晨的温度是:", day2_weather_info_array.getString(2));}if (day2_key.equals("day")) {Log.i("第2天白天的天气标识是:", day2_weather_info_array.getString(0));Log.i("第2天白天的天气是:", day2_weather_info_array.getString(1));Log.i("第2天白天的温度是:", day2_weather_info_array.getString(2));Log.i("第2天白天的风向是:", day2_weather_info_array.getString(3));Log.i("第2天白天的风力是:", day2_weather_info_array.getString(4));//Log.i("第2天白天的日出是:", day2_weather_info_array.getString(5));}if (day2_key.equals("night")) {Log.i("第2天夜间的天气标识是:", day2_weather_info_array.getString(0));Log.i("第2天夜间的天气是:", day2_weather_info_array.getString(1));Log.i("第2天夜间的温度是:", day2_weather_info_array.getString(2));Log.i("第2天夜间的风向是:", day2_weather_info_array.getString(3));Log.i("第2天夜间的风力是:", day2_weather_info_array.getString(4));//Log.i("第2天夜间的日落是:", day2_weather_info_array.getString(5));}}///while,遍历三个时间段的循环

亲测可用

总结如下：

{  }是对象，需要是JsonObject.getString(str)

[  ]是数组，需要是JsonArray.getString(i)

{[ ] ,[ ]}对象里是数组，需要用JsonObject  Iterator  while循环

[{ },{ }]数组里是对象，需要用JsonArray.getJsonObject(i)