Android之Json-@July

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：

[java] view plaincopy

1. // TODO 状态处理 500 200   
2.   
3.                 final HttpPost httpPost=new HttpPost(url);    
4.                 int res = 0;   
5.                 res = httpClient.execute(httpPost).getStatusLine().getStatusCode();   
6.                 if (res == 200) {   
7.                     /*  
8.                      * 当返回码为200时，做处理  
9.                      * 得到服务器端返回json数据，并做处理  
10.                      * */   
11.                     HttpResponse httpResponse = httpClient.execute(httpPost);  
12.     //构建可变字符串 
13.                     StringBuilder builder = new StringBuilder();   
14.     //响应的实体数据 缓冲处理流里面包了一个对象是处理流
15.                     BufferedReader bufferedReader2 = new BufferedReader(   
16.                             new InputStreamReader(httpResponse.getEntity().getContent()));   
17.                     String str2 = "";   
18.                     for (String s = bufferedReader2.readLine(); s != null; s = bufferedReader2   
19.                             .readLine()) {   
20.                         builder.append(s);   
21.                     }   
22.                     Log.i("cat", ">>>>>>" + builder.toString());  
23.   
24.                 JSONObject jsonObject = new JSONObject(builder.toString()).getJSONObject("userbean");   
25.   
26.                 String Uid;   
27.                 String Showname;   
28.                 String Avtar;   
29.                 String State;   
30.   
31.                 Uid = jsonObject.getString("Uid");   
32.                 Showname = jsonObject.getString("Showname");   
33.                 Avtar = jsonObject.getString("Avtar");   
34.                 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：

[java] view plaincopy

1. // TODO 状态处理 500 200   
2.                 final HttpPost httpPost=new HttpPost(url);    
3.                 int res = 0;   
4.                 res = httpClient.execute(httpPost).getStatusLine().getStatusCode();   
5.                 if (res == 200) {   
6.                     /*  
7.                      * 当返回码为200时，做处理  
8.                      * 得到服务器端返回json数据，并做处理  
9.                      * */   
10.                     HttpResponse httpResponse = httpClient.execute(httpPost);   
11.                     StringBuilder builder = new StringBuilder();   
12.                     BufferedReader bufferedReader2 = new BufferedReader(   
13.                             new InputStreamReader(httpResponse.getEntity().getContent()));   
14.                     String str2 = "";   
15.                     for (String s = bufferedReader2.readLine(); s != null; s = bufferedReader2   
16.                             .readLine()) {   
17.                         builder.append(s);   
18.                     }   
19.                     Log.i("cat", ">>>>>>" + builder.toString());   
20.                     /**  
21.                      * 这里需要分析服务器回传的json格式数据，  
22.                      */   
23.                     JSONObject jsonObject = new JSONObject(builder.toString())   
24.                             .getJSONObject("calendar");   
25.                     JSONArray jsonArray = jsonObject.getJSONArray("calendarlist");   
26.                     for(int i=0;i<jsonArray.length();i++){   
27.                         JSONObject jsonObject2 = (JSONObject)jsonArray.opt(i);   
28.                         CalendarInfo calendarInfo = new CalendarInfo();   
29.                         calendarInfo.setCalendar_id(jsonObject2.getString("calendar_id"));   
30.                         calendarInfo.setTitle(jsonObject2.getString("title"));   
31.                         calendarInfo.setCategory_name(jsonObject2.getString("category_name"));   
32.                         calendarInfo.setShowtime(jsonObject2.getString("showtime"));   
33.                         calendarInfo.setEndtime(jsonObject2.getString("endshowtime"));   
34.                         calendarInfo.setAllDay(jsonObject2.getBoolean("allDay"));   
35.                         calendarInfos.add(calendarInfo);   
36.                     }  

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。