java使用正则表达式抓取网页中的Email地址

EmailSpider:

public void getSpiderForURL(URL url){
    HttpURLConnection conn = url.openConnection(); //创建一个HttpURLConnection对象，用来操作URL中的内容
    int code = conn.getResponseCode();//获得服务器返回的状态码
    if(code==HttpURLConnection.HTTP_OK){
        InputStream is = conn.getInputStream();
        InputStreamReader isr = new InputStreamReader(is);
        BufferedReader br = new BufferedReader(isr);
        
        String line ="";
        while((line = br.readLine())){
              parse(line);
}
}  
}  

private void parse(String line){
    String regStr = "[\w[.-]]+@[\w&&[^_][.-]]+\.\w+";//正则表达式
    Pattern p = Pattern.compile(regStr,Pattern.CASE_INSENSITIVE);//将正则表达式添加到编译器中
    Matcher m = p.matcher(line);//在匹配器中将字符和编译器里面的正则表达式匹配
    m.matches();
     while(m.find()){
    System.out.println(m.group());
}

}      

EmailSpiderTest:

EmailSpider es = new EmailSpider();
String str = "http://blog.sina.com.cn/s/blog_515617e60101e151.html";
URL url = new URL(str);
es.getSpiderForURL(url);