修改了下，不过不是很的方式

public class JsoupQidian2 {
    public static void main(String[] args){

        try {
            //直接加载url
            Document docs = Jsoup.connect("http://www.qidian.com/BookReader/2372415.aspx").userAgent("Mozilla")
                    .cookie("auth", "token")
                    .timeout(3000).get();

            //获得body
            Element body=docs.body();

            //通过类jquery  选择器选中html元素
            Elements ls= body.getElementsByTag("a");//select(".grid_3:contains(ActiveMQ) ");
            // 遍历元素
             for (Element el :ls){
                   String title=el.attr("title");
                  if(title != null && title.startsWith("字数：")){
                     System.out.println("http://www.qidian.com/"+el.attr("href"));
                      try {
                          Thread.sleep(5000);
                      } catch (InterruptedException e) {
                          e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
                      }
                      Document temdoc = Jsoup.connect("http://www.qidian.com/"+el.attr("href")).userAgent("Mozilla")
                              .cookie("auth", "token")
                              .timeout(3000).get();
                          System.out.println(temdoc.body().text());
                  }
             }
        } catch (IOException e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }
    }
}

这个是jsoup自带的写请求头方式，不是很好用的