java代码抓取网页邮箱的实现方法

package cn.sdhzzl;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;//和网络相关的操作import java.net.URL;import java.net.URLConnection;import java.util.regex.Matcher;import java.util.regex.Pattern;public class Test {public static void main(String[] args) throws IOException {//1.1 创建一个url对象URL url = new URL("https://www.VeVB.COm/group/topic/8845032/"); //1.2 打开连接 URLConnection conn = url.openConnection(); //1.3 设置连接网络超时时间 单位为毫秒conn.setConnectTimeout(1000 * 10); //1.4 通过流 操作读取指定网络地址中的文件 BufferedReader bufr = new BufferedReader(new InputStreamReader(conn.getInputStream())); String line = null; //1.5 匹配email的正则String regex = "[a-zA-Z0-9_-]+@//w+//.[a-z]+(//.[a-z]+)?";//1.6 使用模式的compile()方法生成模式对象Pattern p = Pattern.compile(regex); //1. while((line = bufr.readLine()) != null) { Matcher m = p.matcher(line); while(m.find()) { System.out.println(m.group());// 获得匹配的email } } }}