java/project1/Main.java

package com.example;

import com.example.bean.Movie;
import com.example.crawler.MovieCrawler;
import com.example.chart.DrawChart;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

public class Main {
    public static void main(String[] args) {

        // 1. 爬取数据
        MovieCrawler crawler = new MovieCrawler();
        List<Movie> movies = crawler.start();

        // 2. 数据清洗
        List<Movie> cleanData = new ArrayList<>();
        for (Movie movie : movies) {
            if (movie.getTitle() != null && !movie.getTitle().isBlank()) {
                cleanData.add(movie);
            }
        }

        // ===================== CSV 保存功能 恢复！=====================
        try (FileWriter writer = new FileWriter("movie_top100.csv")) {
            writer.write("电影名称,评分,导演,上映年份\n");
            for (Movie m : cleanData) {
                writer.write(m.getTitle() + "," + m.getScore() + "," + m.getDirector() + "," + m.getYear() + "\n");
            }
            System.out.println("✅ CSV 文件已保存：movie_top100.csv");
        } catch (Exception e) {
            e.printStackTrace();
        }
        // ==============================================================

        // 3. 评分统计
        Map<String, Long> scoreCount = cleanData.stream()
                .collect(Collectors.groupingBy(Movie::getScore, Collectors.counting()));

        // 4. 控制台打印表格
        System.out.println("\n==========================================");
        System.out.println("            电影评分统计表格             ");
        System.out.println("==========================================");
        System.out.printf("%-10s %-10s %-10s%n", "评分", "数量(部)", "占比(%)");
        System.out.println("------------------------------------------");

        double total = cleanData.size();
        for (Map.Entry<String, Long> entry : scoreCount.entrySet()) {
            String score = entry.getKey();
            long count = entry.getValue();
            double rate = (count * 100.0) / total;
            System.out.printf("%-12s %-12d %-10.2f%n", score, count, rate);
        }

        System.out.println("------------------------------------------");
        System.out.printf("总计：%d 部电影%n", (long) total);
        System.out.println("==========================================");

        // 5. 生成正常折线图：按排名 1→100 顺序连线
        List<Double> scoreList = new ArrayList<>();
        for (Movie movie : cleanData) {
            scoreList.add(Double.parseDouble(movie.getScore()));
        }

        DrawChart drawing = new DrawChart();
        drawing.drawByOrder(scoreList);
    }
}