对比分析json及XML(6)

  当使用XML解析器将XML数据解析出来之后。需要将这些数据提取出来,也是通过连续2层提取,将数据定位到每个video, 将每个video里的数据传递给SearchVideoInfo这个ArrayList,然后将ArrayList中的数据和对应的Adapter数据关联起来:

复制代码 代码如下:


public static ArrayList<SearchVideoInfo> getSearchVideoInfo(ResultInfo searchResultInfo) {
    ResultInfo resultInfo = null;
    ResultInfo[] videos = null;
    ArrayList<SearchVideoInfo> searchVideoInfos = null;
    if (searchResultInfo != null) {
        resultInfo = searchResultInfo.getResultInfo(ResultInfo.KEY_SEARCH);
    }
    if (resultInfo != null) {
        videos = resultInfo.getResultInfoArray(ResultInfo.KEY_VIDEOS);
    }
    if (videos != null && videos.length > 0) {
        searchVideoInfos = new ArrayList<SearchVideoInfo>(videos.length);
        for (ResultInfo video : videos) {
            SearchVideoInfo searchInfo = new SearchVideoInfo();
            searchInfo.setAlbum_id(video.getString(VideoInfo.ID));
            searchInfo.setTitle(video.getString(VideoInfo.TITLE));
            searchInfo.setChannel_id(video.getString(VideoInfo.CATEGORY_ID));
            searchInfo.setImgUrl(video.getString(VideoInfo.IMG_URL));
            searchInfo.setDuration(video.getString(VideoInfo.DURATION));
            searchInfo.setMainActors(video.getString(VideoInfo.MAINACTORS));
            searchInfo.setSiteName(video.getString(VideoInfo.SITENAME));
            searchInfo.setVideo_url(video.getString(VideoInfo.VIDEOURL));
            searchInfo.setOrder(video.getString(VideoInfo.SORT));
            searchInfo.setTv_id(video.getString(VideoInfo.TV_ID));
            // searchInfo.setContinueType(video.getString(VideoInfo.CONTINUETYPE));
            searchVideoInfos.add(searchInfo);
        }
    }
    if (searchVideoInfos == null) {
        MyLog.e(TAG, "error, getSearchVideoInfo, can not get info");
    }
    return searchVideoInfos;
}

  以上就是搜索数据的XML的解析和数据展示过程。

 二、JSON

  XML很好很强大,但是最近有另外一个时代弄潮儿,这就是JSON。现在JSON的光环已经逐渐超越了XML,各大网站提供的数据接口一般都是JSON。下面我们就来学习下JSON。

 2.1 JSON是什么?

  JSON:JavaScript对象表示法(JavaScript Object Notation), 是一种轻量级的数据交换格式, 易于人阅读和编写, 同时也易于机器解析和生成。

  JSON是存储和交换文本信息的语法,类似XML。

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