求大神赐教一个抓取页面信息的问题

最近在做一个关于NBA的应用，要用到新浪NBA里的球员数据，但是抓取时总是抓不到球员信息。求大神指导。比如要抓取 http://sports.sina.com.cn/nba/live.html?id=2013112928 页面下的球员数据统计信息，下面是代码：



import java.io.IOException;

import java.io.InputStream;

import java.net.HttpURLConnection;

import java.net.URL;

import java.util.zip.GZIPInputStream;



public class NBA_Sina {



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

//传递请求参数

		URL url = new URL(

				"http://sports.sina.com.cn/nba/live.html?id=2013112928");

		HttpURLConnection httpURLConnection = (HttpURLConnection) url

				.openConnection();

		httpURLConnection.setDoInput(true);

		httpURLConnection.setRequestProperty("Host", "live.sinajs.cn");

		httpURLConnection

		.setRequestProperty("User-Agent",

				"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0");

		httpURLConnection

				.setRequestProperty("Accept",

						"*/*");

		httpURLConnection.setRequestProperty("Accept-Language",

				"zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3");

		httpURLConnection

				.setRequestProperty("Accept-Encoding", "gzip, deflate");

		httpURLConnection.setRequestProperty("Rerfer", "http://sports.sina.com.cn/nba/live.html?id=2013112923");

		httpURLConnection.setRequestProperty("Connection", "keep-alive");

		

		

//gzip解压

		httpURLConnection.connect();

		InputStream inputStream = httpURLConnection.getInputStream();

		GZIPInputStream gzipis=new GZIPInputStream(inputStream);

		

		

		byte[]buf=new byte[1024];

		int off=0;

		while ((gzipis.read(buf, off, buf.length)!=-1)) {

		

			

			System.out.println(new String(buf));//输出

			

		}

		httpURLConnection.disconnect();

java 页面抓取 web

补充：Java ,  Web 开发