利用nekohtml解析得到网站的价格

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.InputStreamReader;
import java.net.URL;

import org.cyberneko.html.parsers.DOMParser;
import org.htmlparser.tags.Span;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;


public class JavaTest {
public static String TextExtractor(Node root){
   //若是文本节点的话，直接返回
   if (root.getNodeType() == Node.TEXT_NODE) {
    return "";
   }
   if(root.getNodeType() == Node.ELEMENT_NODE) {
    Element elmt = (Element) root;
    //抛弃脚本
    if (elmt.getTagName().equals("STYLE")
      || elmt.getTagName().equals("SCRIPT"))
     return "";
    NodeList children = elmt.getChildNodes();
    StringBuilder text = new StringBuilder();
    if (elmt.getTagName().equals("SPAN")) {
    	if (elmt.hasAttribute("id")) {
    		 // System.out.println(elmt.getAttribute("id"));
      		if (elmt.getAttribute("id").equals("countOfPrd")) {
      			return children.item(0).getNextSibling().getNextSibling().getNextSibling().getFirstChild().getNodeValue();
  		}
  	}
		}
   
    for (int i = 0; i < children.getLength(); i++) {
        text.append(TextExtractor(children.item(i)));
    }
    return text.toString();
   }
   //对其它类型的节点，返回空值
   return "";
}
public static void main(String[] args) throws Exception{
   //生成html parser
   DOMParser parser = new DOMParser();
   //设置网页的默认编码
   parser.setProperty(
     "http://cyberneko.org/html/properties/default-encoding",
     "utf-8");
   //input file
   URL a = new URL("http://www.suning.cn/webapp/wcs/stores/servlet/prd_10052_10051_-7_9173_196583_.html");
   BufferedReader in = new BufferedReader(new InputStreamReader(a.openStream()));
   //BufferedReader in = new BufferedReader(new FileReader("input.htm"));
   parser.parse(new InputSource(in));
   Document doc = parser.getDocument();
   //获得body节点，以此为根，计算其文本内容
   Node body = doc.getElementsByTagName("BODY").item(0);
   System.out.println(TextExtractor(body));
}
}
 //该段代码是用来解析抓取各大网站的价格，来智能化定价。实现价格战的目的赢得用户，不懂或更多探究QQ526151410