java/project/CrawlCommand.java

package command;

import strategy.CrawlStrategy;
import model.Article;
import controller.CrawlerController;

public class CrawlCommand implements Command {
    private CrawlStrategy strategy;
    private CrawlerController controller;
    
    public CrawlCommand(CrawlStrategy strategy, CrawlerController controller) {
        this.strategy = strategy;
        this.controller = controller;
    }
    
    @Override
    public void execute() {
        try {
            controller.getView().showMessage("正在爬取: " + strategy.getName());
            Article article = strategy.crawl();
            controller.addArticle(article);
            controller.getView().showArticle(article);
            controller.getView().showMessage("爬取成功！");
        } catch (Exception e) {
            controller.getView().showError("爬取失败: " + e.getMessage());
        }
    }
    
    @Override
    public String getDescription() {
        return "爬取 " + strategy.getName();
    }
}