Json，Gson,FastJson解析数据比较

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先行版预告片2","videoLength":150,"rating":-1,"type":["恐怖","惊悚"],"summary":"麦卡沃伊演绎24重人格"},{"id":63086,"movieName":"《深海浩劫》定档预告片","coverImg":"http://img5.mtime.cn/mg/2016/10/26/115033.64125052.jpg","movieId":216485,"url":"http://vfx.mtime.cn/Video/2016/10/26/mp4/161026092336611200_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/26/mp4/161026092336611200.mp4","videoTitle":"深海浩劫 中国版预告片","videoLength":79,"rating":7.3,"type":["动作","剧情","惊悚"],"summary":"沃尔伯格出镜问候中国影迷"},{"id":63043,"movieName":"《绝世高手》首曝预告片","coverImg":"http://img5.mtime.cn/mg/2016/10/24/094556.77680031.jpg","movieId":236657,"url":"http://vfx.mtime.cn/Video/2016/10/23/mp4/161023202815336328_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/23/mp4/161023202815336328.mp4","videoTitle":"绝世高手 先行版预告片","videoLength":120,"rating":-1,"type":["喜剧"],"summary":"周星驰超级粉丝卢正雨处女作"},{"id":63033,"movieName":"《少年巴比伦》预告片","coverImg":"http://img5.mtime.cn/mg/2016/10/23/155054.20904664.jpg","movieId":215665,"url":"http://vfx.mtime.cn/Video/2016/10/21/mp4/161021192959998933_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/21/mp4/161021192959998933.mp4","videoTitle":"少年巴比伦 “热血版”预告片","videoLength":69,"rating":6.9,"type":["喜剧","爱情"],"summary":"工厂江湖藏龙卧虎青春凶猛"},{"id":63012,"movieName":"《金刚狼3》中文版预告片","coverImg":"http://img5.mtime.cn/mg/2016/10/21/103920.75518105.jpg","movieId":209688,"url":"http://vfx.mtime.cn/Video/2016/10/20/mp4/161020221328633413_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/20/mp4/161020221328633413.mp4","videoTitle":"金刚狼3：殊死一战 中文版预告片","videoLength":106,"rating":-1,"type":["动作","科幻"],"summary":"暮年狼叔为新生代而战"},{"id":63013,"movieName":"《降临》终极版预告片","coverImg":"http://img5.mtime.cn/mg/2016/10/21/103416.87346964.jpg","movieId":221966,"url":"http://vfx.mtime.cn/Video/2016/10/21/mp4/161021080707964346_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/21/mp4/161021080707964346.mp4","videoTitle":"降临 终极预告片","videoLength":60,"rating":7.7,"type":["科幻","悬疑","剧情","惊悚"],"summary":"双11北美对垒李安新作"},{"id":62985,"movieName":"《摆渡人》定档预告","coverImg":"http://img5.mtime.cn/mg/2016/10/20/114906.86879797.jpg","movieId":215724,"url":"http://vfx.mtime.cn/Video/2016/10/20/mp4/161020090627402606_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/20/mp4/161020090627402606.mp4","videoTitle":"摆渡人 先行版预告片","videoLength":76,"rating":5.2,"type":["爱情","喜剧"],"summary":"群星狂欢尽显喜剧特质"},{"id":62986,"movieName":"《银河护卫队2》预告片","coverImg":"http://img5.mtime.cn/mg/2016/10/20/114235.24892481.jpg","movieId":216008,"url":"http://vfx.mtime.cn/Video/2016/10/20/mp4/161020080509518459_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/20/mp4/161020080509518459.mp4","videoTitle":"银河护卫队2 先行版预告片","videoLength":86,"rating":-1,"type":["动作","科幻"],"summary":"格鲁特萌出新境界"},{"id":62966,"movieName":"《刺客信条》新预告","coverImg":"http://img5.mtime.cn/mg/2016/10/19/112340.98815792.jpg","movieId":200591,"url":"http://vfx.mtime.cn/Video/2016/10/18/mp4/161018212137309833_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/18/mp4/161018212137309833.mp4","videoTitle":"刺客信条 预告片2","videoLength":158,"rating":7.2,"type":["动作","冒险","奇幻","科幻"],"summary":"\"法鲨\"刺客基因觉醒"},{"id":62970,"movieName":"《比利林恩》新预告","coverImg":"http://img5.mtime.cn/mg/2016/10/19/101345.32665454.jpg","movieId":217130,"url":"http://vfx.mtime.cn/Video/2016/10/19/mp4/161019171222476200_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/19/mp4/161019171222476200.mp4","videoTitle":"比利·林恩的中场战事 中文版预告片3","videoLength":110,"rating":8,"type":["剧情","战争"],"summary":"战火烟火诠释复杂纠葛"},{"id":62952,"movieName":"《娃娃老板》预告片","coverImg":"http://img5.mtime.cn/mg/2016/10/18/102203.49333729.jpg","movieId":220455,"url":"http://vfx.mtime.cn/Video/2016/10/18/mp4/161018091630713757_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/18/mp4/161018091630713757.mp4","videoTitle":"娃娃老板 先行版预告片","videoLength":136,"rating":-1,"type":["动画","喜剧","家庭"],"summary":"男孩大战婴儿弟弟"},{"id":62938,"movieName":"《罗曼蒂克消亡史》预告","coverImg":"http://img5.mtime.cn/mg/2016/10/17/172246.85687810.jpg","movieId":208911,"url":"http://vfx.mtime.cn/Video/2016/10/17/mp4/161017094832711330_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/17/mp4/161017094832711330.mp4","videoTitle":"罗曼蒂克消亡史 先行版预告片2","videoLength":143,"rating":7.5,"type":["剧情","动作","悬疑"],"summary":"欲火枪火交织绽放"},{"id":62927,"movieName":"《特勤》预告片","coverImg":"http://img5.mtime.cn/mg/2016/10/15/115324.23000502.jpg","movieId":236106,"url":"http://vfx.mtime.cn/Video/2016/10/14/mp4/161014173156449582_480.mp4","hightUrl":"http://vfx.mtime.cn/Video/2016/10/14/mp4/161014173156449582.mp4","videoTitle":"特勤 预告片","videoLength":46,"rating":-1,"type":["科幻"],"summary":"三位捉妖高手对决怪兽"}]}";

一》使用GsonFromat快速生成实体对象(方法可以看我发的那篇方法或百度比较简单)

二》实体类如下：

package cvds.cldvision.com.tablayoutviewpager.ben;

import java.util.List;

/**
 * Created by Administrator on 2017/1/24.
 */

public class UserBen {

    private List trailers;

    public List getTrailers() {
        return trailers;
    }

    public void setTrailers(List trailers) {
        this.trailers = trailers;
    }

    public static class TrailersBean {
        @Override
        public String toString() {
            return "TrailersBean{" +
                    "videoTitle='" + videoTitle + '\'' +
                    ", id=" + id +
                    ", movieName='" + movieName + '\'' +
                    ", coverImg='" + coverImg + '\'' +
                    ", movieId=" + movieId +
                    ", url='" + url + '\'' +
                    ", hightUrl='" + hightUrl + '\'' +
                    ", videoLength=" + videoLength +
                    ", rating=" + rating +
                    ", summary='" + summary + '\'' +
                    ", type=" + type +
                    '}';
        }

        /**
         * id : 64259
         * movieName : 《西游伏妖篇》新预告
         * coverImg : http://img5.mtime.cn/mg/2017/01/17/140838.90647853.jpg
         * movieId : 208325
         * url : http://vfx.mtime.cn/Video/2017/01/16/mp4/170116173823484498_480.mp4
         * hightUrl : http://vfx.mtime.cn/Video/2017/01/16/mp4/170116173823484498.mp4
         * videoTitle : 西游伏妖篇 剧场版预告片
         * videoLength : 127
         * rating : -1
         * type : ["动作","奇幻","喜剧","古装"]
         * summary : 唐僧"重色轻友"与悟空反目
         */

        private int id;
        private String movieName;
        private String coverImg;
        private int movieId;
        private String url;
        private String hightUrl;
        private String videoTitle;
        private int videoLength;
        private int rating;
        private String summary;
        private List type;

        public int getId() {
            return id;
        }

        public void setId(int id) {
            this.id = id;
        }

        public String getMovieName() {
            return movieName;
        }

        public void setMovieName(String movieName) {
            this.movieName = movieName;
        }

        public String getCoverImg() {
            return coverImg;
        }

        public void setCoverImg(String coverImg) {
            this.coverImg = coverImg;
        }

        public int getMovieId() {
            return movieId;
        }

        public void setMovieId(int movieId) {
            this.movieId = movieId;
        }

        public String getUrl() {
            return url;
        }

        public void setUrl(String url) {
            this.url = url;
        }

        public String getHightUrl() {
            return hightUrl;
        }

        public void setHightUrl(String hightUrl) {
            this.hightUrl = hightUrl;
        }

        public String getVideoTitle() {
            return videoTitle;
        }

        public void setVideoTitle(String videoTitle) {
            this.videoTitle = videoTitle;
        }

        public int getVideoLength() {
            return videoLength;
        }

        public void setVideoLength(int videoLength) {
            this.videoLength = videoLength;
        }

        public int getRating() {
            return rating;
        }

        public void setRating(int rating) {
            this.rating = rating;
        }

        public String getSummary() {
            return summary;
        }

        public void setSummary(String summary) {
            this.summary = summary;
        }

        public List getType() {
            return type;
        }

        public void setType(List type) {
            this.type = type;
        }
    }
}

三》解析代码分别用三种方法比较

第一中比较麻烦手动，第二种有缺陷，浮点型值会报错会（还不清楚什么原因，以下例子

rating

值），第三种代码量少，效率高

 private void parseData(String s) {
        List listTrailersBean = new ArrayList<>();
        UserBen user = new UserBen();
        user.setTrailers(listTrailersBean);
        if (s != null) {
            try {
                //原生的json解析，手动解析
                org.json.JSONObject js = new org.json.JSONObject(s);
                String trailers = js.optString("trailers");
                JSONArray jsonArray = new JSONArray(trailers);
                System.out.println("长度" + jsonArray.length());
                for (int i = 0; i < jsonArray.length(); i++) {
                    List list = new ArrayList<>();
                    org.json.JSONObject json = jsonArray.getJSONObject(i);
                    UserBen.TrailersBean trailersBean = new UserBen.TrailersBean();
                    trailersBean.setType(list);
                    int id = json.getInt("id");
                    String coverImg = json.getString("coverImg");
                    String movieName = json.getString("movieName");
                    int movieId = json.getInt("movieId");
                    String url = json.getString("url");
                    String hightUrl = json.getString("hightUrl");
                    String videoTitle = json.getString("videoTitle");
                    int videoLenth = json.getInt("videoLength");
                    int rating = json.getInt("rating");
                    String strType = json.getString("type");
                    trailersBean.setCoverImg(coverImg);
                    trailersBean.setHightUrl(hightUrl);
                    trailersBean.setId(id);
                    trailersBean.setMovieId(movieId);
                    trailersBean.setVideoTitle(videoTitle);
                    trailersBean.setVideoLength(videoLenth);
                    trailersBean.setRating(rating);
                    trailersBean.setUrl(url);
                    trailersBean.setMovieName(movieName);
                    org.json.JSONArray jsonA = new org.json.JSONArray(strType);
                    listTrailersBean.add(trailersBean);
                    for (int j = 0; j < jsonA.length(); j++) {
                        String dy = jsonA.getString(j);
                        list.add(dy);
                    }
                }
                textView1.setText(listTrailersBean.toString());
                //Gson解析
                Gson gon = new Gson();
                List o = gon.fromJson(trailers, new TypeToken>() {}.getType());
                textView.setText(o.toString());
            } catch (JSONException e) {
                e.printStackTrace();
            }
               // fastjson解析
            JSONObject jsonObject = JSON.parseObject(s);
            String str = jsonObject.getString("trailers");
            UserBen user1 = new UserBen();
            List userBens = JSON.parseArray(str, UserBen.TrailersBean.class);
            user1.setTrailers(userBens);
            textView.setText(userBens.toString());
        }
    }

记得导入Gson 与FastJson包