android解析JSON字符串 – Android移動開發技術文章_手機開發 Android移動開發教學課程

json數據格式解析我自己分為兩種;


一種是普通的,一種是帶有數組形式的;



 


普通形式的:
服務器端返回的json數據格式如下:


{“userbean”:{“Uid”:”100196″,”Showname”:”u75afu72c2u7684u7334u5b50″,”Avtar”:null,”State”:1}}


分析代碼如下:


// TODO 狀態處理 500 200
                int res = 0;
                res = httpClient.execute(httpPost).getStatusLine().getStatusCode();
                if (res == 200) {
                    /*
                     * 當返回碼為200時,做處理
                     * 得到服務器端返回json數據,並做處理
                     * */
                    HttpResponse httpResponse = httpClient.execute(httpPost);
                    StringBuilder builder = new StringBuilder();
                    BufferedReader bufferedReader2 = new BufferedReader(
                            new InputStreamReader(httpResponse.getEntity().getContent()));
                    String str2 = “”;
                    for (String s = bufferedReader2.readLine(); s != null; s = bufferedReader2
                            .readLine()) {
                        builder.append(s);
                    }
                    Log.i(“cat”, “>>>>>>” + builder.toString());


JSONObject jsonObject = new JSONObject(builder.toString())
                        .getJSONObject(“userbean”);


                String Uid;
                String Showname;
                String Avtar;
                String State;


                Uid = jsonObject.getString(“Uid”);
                Showname = jsonObject.getString(“Showname”);
                Avtar = jsonObject.getString(“Avtar”);
                State = jsonObject.getString(“State”);
帶數組形式的:
服務器端返回的數據格式為:


{“calendar”:
    {“calendarlist”:
            [
            {“calendar_id”:”1705″,”title”:”(u4eb2u5b50)ddssd”,”category_name”:”u9ed8u8ba4u5206u7c7b”,”showtime”:”1288927800″,”endshowtime”:”1288931400″,”allDay”:false},
            {“calendar_id”:”1706″,”title”:”(u65c5u884c)”,”category_name”:”u9ed8u8ba4u5206u7c7b”,”showtime”:”1288933200″,”endshowtime”:”1288936800″,”allDay”:false}
            ]
    }
}


分析代碼如下:


// TODO 狀態處理 500 200
                int res = 0;
                res = httpClient.execute(httpPost).getStatusLine().getStatusCode();
                if (res == 200) {
                    /*
                     * 當返回碼為200時,做處理
                     * 得到服務器端返回json數據,並做處理
                     * */
                    HttpResponse httpResponse = httpClient.execute(httpPost);
                    StringBuilder builder = new StringBuilder();
                    BufferedReader bufferedReader2 = new BufferedReader(
                            new InputStreamReader(httpResponse.getEntity().getContent()));
                    String str2 = “”;
                    for (String s = bufferedReader2.readLine(); s != null; s = bufferedReader2
                            .readLine()) {
                        builder.append(s);
                    }
                    Log.i(“cat”, “>>>>>>” + builder.toString());
                    /**
                     * 這裡需要分析服務器回傳的json格式數據,
                     */
                    JSONObject jsonObject = new JSONObject(builder.toString())
                            .getJSONObject(“calendar”);
                    JSONArray jsonArray = jsonObject.getJSONArray(“calendarlist”);
                    for(int i=0;i<jsonArray.length();i++){
                        JSONObject jsonObject2 = (JSONObject)jsonArray.opt(i);
                        CalendarInfo calendarInfo = new CalendarInfo();
                        calendarInfo.setCalendar_id(jsonObject2.getString(“calendar_id”));
                        calendarInfo.setTitle(jsonObject2.getString(“title”));
                        calendarInfo.setCategory_name(jsonObject2.getString(“category_name”));
                        calendarInfo.setShowtime(jsonObject2.getString(“showtime”));
                        calendarInfo.setEndtime(jsonObject2.getString(“endshowtime”));
                        calendarInfo.setAllDay(jsonObject2.getBoolean(“allDay”));
                        calendarInfos.add(calendarInfo);
                    }


總結,普通形式的隻需用JSONObject ,帶數組形式的需要使用JSONArray 將其變成一個list。

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