android中用jsonObject解析json数据

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
                 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());

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 " );
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
                 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。

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