public List<String> getIP(String url) throws IOException{
		URL u = new URL(url);
		BufferedReader br = new BufferedReader(new InputStreamReader(u.openStream()));
		
		String s = "";
	    List<String> ipList =  new ArrayList<String>();
		
		String regex = "\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}";  
		Pattern p = Pattern.compile(regex);
		Matcher m ;
		
		System.out.println("-------------------开始抓取"+url+"上的ip--------------------");
		while((s = br.readLine()) != null){
			m = p.matcher(s);
			 while (m.find()) {  
				 ipList.add(m.group());
			        System.out.println(m.group());  
			    }   
		}
		
		return ipList;
	}