java 웹 사이트의 keywords,description 가져오기

package cn.evan.util;

import java.io.IOException;

import org.jsoup.Jsoup;

import org.jsoup.nodes.Document;

import org.jsoup.nodes.Element;

import org.jsoup.select.Elements;

public class SemanticCrawl {

    public static void main(String[] args) {

        Document doc = null;

        try {

            doc = Jsoup.connect(" ").get();

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        String title = doc.title();

        Elements metas = doc.head().select("meta");  

        for (Element meta : metas) {  

            String content = meta.attr("content");  

            if ("keywords".equalsIgnoreCase(meta.attr("name"))) {  

                System.out.println(" ："+content);  

            }  

            if ("description".equalsIgnoreCase(meta.attr("name"))) {  

                System.out.println(" :"+content);  

            }  

        }  

        Elements keywords = doc.getElementsByTag("meta");

        System.out.println(" "+title);

    }

}