简单的java爬虫抓取网页实现代码

import java.io.IOException;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;


public class Robot {



// robot url
private List<String> urlList;
// cache url
private Queue<String> urlQueue;
// define Host
public final static String HOST = "debugs.tk";

// constructor
public Robot() {
    super();
    // initialization robot's member
    setUrlList(new LinkedList<String>());
    setUrlQueue(new LinkedList<String>());