如何用Java爬取网页的copyright？

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


public static void main(String[] args) throws IOException {


        Document doc = Jsoup.connect("  http://www.ccopyright.com.cn/cpcc/index.jsp")
                .get();
        Elements es = doc.getElementsContainingOwnText("版权所有");
        System.out.println(es.html().replaceAll("<([^>]*)>", ""));
    }