java/project/strategy/DoubanBookStrategy.java

package com.example.moviecli.strategy;

import com.example.moviecli.model.Movie;
import com.example.moviecli.exception.ParseFailedException;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import java.util.ArrayList;
import java.util.List;

public class DoubanBookStrategy implements MovieCrawlStrategy {
    @Override
    public boolean supports(String url) {
        return url.contains("book.douban.com/top250");
    }

    @Override
    public List<Movie> parse(Document doc) throws ParseFailedException {
        try {
            List<Movie> books = new ArrayList<>();
            Elements items = doc.select(".item");
            int rank = 1;
            for (Element item : items) {
                String title = item.select(".pl2 a").text().trim();
                String score = item.select(".rating_nums").text();
                books.add(new Movie(rank++, title, "", score, "图书", "豆瓣图书"));
            }
            return books;
        } catch (Exception e) {
            throw new ParseFailedException("豆瓣图书解析失败", e);
        }
    }
}