android Json数据解析

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json数据格式解析我自己分为两种；

一种是普通的，一种是带有数组形式的；

普通形式的：
服务器端返回的json数据格式如下：

{"userbean":{"Uid":"100196","Showname":"\u75af\u72c2\u7684\u7334\u5b50","Avtar":null,"State":1}}

分析代码如下：

// TODO 状态处理 500 200 HttpParams httpParameters = new BasicHttpParams();HttpConnectionParams.setConnectionTimeout(httpParameters, 1200);HttpConnectionParams.setSoTimeout(httpParameters, 1200);DefaultHttpClient httpClient = new DefaultHttpClient(httpParameters); final HttpPost httpPost=new HttpPost("uri");                 int res = 0;                try {res = httpClient.execute(httpPost).getStatusLine().getStatusCode();             if (res == 200) {                 /*                    * 当返回码为200时，做处理                    * 得到服务器端返回json数据，并做处理                    * */                    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());               //如果没有userbean,:JSONObject jsonObject = new JSONObject(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");               } } catch (ClientProtocolException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (JSONException e) {// TODO Auto-generated catch blocke.printStackTrace();}

带数组形式的：
服务器端返回的数据格式为：

{"calendar":
    {"calendarlist":
            [
            {"calendar_id":"1705","title":"(\u4eb2\u5b50)ddssd","category_name":"\u9ed8\u8ba4\u5206\u7c7b","showtime":"1288927800","endshowtime":"1288931400","allDay":false},
            {"calendar_id":"1706","title":"(\u65c5\u884c)","category_name":"\u9ed8\u8ba4\u5206\u7c7b","showtime":"1288933200","endshowtime":"1288936800","allDay":false}
            ]
    }
}

分析代码如下：

// TODO 状态处理 500 200                 final HttpPost httpPost=new HttpPost(url);                  int res = 0;                 res = httpClient.execute(httpPost).getStatusLine().getStatusCode();                 if (res == 200) {                     /*                      * 当返回码为200时，做处理                      * 得到服务器端返回json数据，并做处理                      * */                     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());                     /**                      * 这里需要分析服务器回传的json格式数据，                      */                     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);                     }

总结，普通形式的只需用JSONObject ，带数组形式的需要使用JSONArray 将其变成一个list。