Examples with RecommendMapper com.mapper.RecommendMapper used on opensource projects

Example 1 with RecommendMapper

use of com.mapper.RecommendMapper in project Movie by batsqd.

the class StarRating method saveUserFeedbackRating.

/////////////////////////////////////////
@RequestMapping("/saveUserFeedbackRating.action")
public ModelAndView saveUserFeedbackRating(int user_id, int movie_id, int user_feedback_rating) {
    //日志处理
    logger_rating.info(user_id + "	" + movie_id + "	" + user_feedback_rating);
    //在这里只是update feedback
    ApplicationContext ac = ApplicationContextUtil.getApplicationContext();
    RecommendMapper recommendMapper = (RecommendMapper) ac.getBean("recommendMapper");
    HashMap<String, Object> parameter = new HashMap<String, Object>();
    parameter.put("movie_id", movie_id);
    parameter.put("user_id", user_id);
    parameter.put("user_feedback_rating", user_feedback_rating);
    ModelAndView modelAndView = new ModelAndView();
    try {
        recommendMapper.saveUserFeedbackRating(parameter);
        modelAndView.addObject("insertException", "感谢您的评分:" + user_feedback_rating + "分！");
    } catch (Exception e) {
        modelAndView.addObject("insertException", "保存数据异常！");
    } finally {
        modelAndView.setViewName("/WEB-INF/jsp/userFeedback.jsp");
        return modelAndView;
    }
}

Example 2 with RecommendMapper

use of com.mapper.RecommendMapper in project Movie by batsqd.

the class MovieController method getRecommendedMoviesByOurAlgorithm.

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@RequestMapping("getRecommendedMoviesByOurAlgorithm.action")
public ModelAndView getRecommendedMoviesByOurAlgorithm(HttpSession session) throws Exception {
    User user = (User) session.getAttribute("user");
    int user_id = user.getUserid();
    int recommend_movie_num = Configs.recommend_movie_num;
    ApplicationContext ac = ApplicationContextUtil.getApplicationContext();
    WatchMovieMapper watchMovieMapper = (WatchMovieMapper) ac.getBean("watchMovieMapper");
    int numsOfRatedMoviesByUserId = watchMovieMapper.numsOfRatedMoviesByUserId(user_id);
    ModelAndView modelAndView = new ModelAndView();
    if (numsOfRatedMoviesByUserId < 5) {
        modelAndView.addObject("numsOfRatedMoviesByUserId", numsOfRatedMoviesByUserId);
        modelAndView.setViewName("/WEB-INF/jsp/guessYouLike.jsp");
        return modelAndView;
    } else {
        //超过5人评价，才做预测
        ImproveSlopeOne improveSlopeOne = new ImproveSlopeOne();
        List<RecommendedMovie> recommendedMovieslist = improveSlopeOne.getPredictMovies(user_id, recommend_movie_num);
        //System.out.println("=========================================");
        //System.out.println("推荐电影的数量："+recommendedMovieslist.size());
        //System.out.println(recommendedMovieslist.toString());
        //System.out.println("==========================================");
        MovieMapper movieMapper = (MovieMapper) ac.getBean("movieMapper");
        RecommendMapper recommendMapper = (RecommendMapper) ac.getBean("recommendMapper");
        ArrayList<Movie> moviesList = new ArrayList<Movie>();
        for (int i = 0; i < recommendedMovieslist.size(); i++) {
            double movie_recommend_value = recommendedMovieslist.get(i).getRecommend_vale();
            int recommendedMovie_id = recommendedMovieslist.get(i).getMovie_id();
            HashMap<String, Object> parameter = new HashMap<String, Object>();
            parameter.put("movie_id", recommendedMovie_id);
            parameter.put("user_id", user_id);
            parameter.put("recommend_value", movie_recommend_value);
            //最好处理下异常
            //只是保存user_id movie_id recommend_value timestamp
            recommendMapper.saveRecommendedMovies(parameter);
            Movie movie = movieMapper.selectMovieById(recommendedMovie_id);
            if (movie != null) {
                moviesList.add(movie);
            }
        }
        modelAndView.addObject("moviesList", moviesList);
        modelAndView.setViewName("/WEB-INF/jsp/guessYouLike.jsp");
        return modelAndView;
    }
}