网络爬虫

1、利用URL获取网络内容，通过Jsoup.parse(buffer.toString()); 来解析html内容

　　URL url=new URL("http://hotels.ctrip.com/hotel/taiyuan105#ctm_ref=ctr_hp_sb_lst");
        URLConnection connection = url.openConnection();
        InputStreamReader inputStream =new InputStreamReader(connection.getInputStream());
        BufferedReader reader=new BufferedReader(inputStream);
        StringBuffer buffer=new StringBuffer();
        String line="";
        while((line=reader.readLine())!=null){
            buffer.append(line+"\n");
        }
        Document document = Jsoup.parse(buffer.toString());
        Element element = document.getElementById("hotel_list");