Java/W9/command/CrawlCommand.java

package com.example.datacollect.command;

import com.example.datacollect.model.Article;
import com.example.datacollect.model.DataService;
import com.example.datacollect.view.ConsoleView;
import java.util.List;

public class CrawlCommand implements Command {
    private final ConsoleView view;

    public CrawlCommand(ConsoleView view) {
        this.view = view;
    }

    @Override
    public String getName() {
        return "crawl";
    }

    @Override
    public void execute(String[] args, DataService dataService) {
        if (args.length < 2) {
            view.printError("Usage: crawl <url>");
            return;
        }
        String url=args[1];
        //模拟爬取数据
        Article newArticle=new Article("title",url,"content");
        dataService.saveArticle(newArticle);
        view.printSuccess("Successfully get the article "+newArticle.getTitle());
    }

}