android中json数据的解析

1：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");
}

2：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。