Java---网络蜘蛛-网页邮箱抓取器~源码

刚刚学完Socket，迫不及待的做了这个网页邮箱抓取~~~

现在有越来越多的人热衷于做网络爬虫（网络蜘蛛），也有越来越多的地方需要网络爬虫，比如搜索引擎、资讯采集、舆情监测等等，诸如此类。网络爬虫涉及到的技术(算法/策略)广而复杂，如网页获取、网页跟踪、网页分析、网页搜索、网页评级和结构/非结构化数据抽取以及后期更细粒度的数据挖掘等方方面面，对于新手来说，不是一朝一夕便能完全掌握且熟练应用的，对于作者来说，更无法在一篇文章内就将其说清楚。因此在本篇文章中，我们仅将视线聚焦在网络爬虫的最基础技术——网页抓取方面。

说到网页抓取，往往有两个点是不得不说的，首先是网页编码的识别，另外一个是对网页脚本运行的支持，除此之外，是否支持以POST方式提交请求和支持自动的cookie管理也是很多人所关注的重要方面。其实Java世界里，已经有很多开源的组件来支持各种各样方式的网页抓取了，包括上面提到的四个重点，所以说使用Java做网页抓取还是比较容易的。下面，作者将重点介绍其中的六种方式。

自己以前做过微商，而且还掏钱买过抓取网络邮箱的软件~现在O(∩_∩)O哈哈~我自己做~当然啦，没有别人做得好~只是功能还是差不多啦~

给一个带协议的网站~然后深入网页中查找邮箱~

因为博主知识有限~线程池目前还没有学~导致无法控制线程~~~见谅~
还有~就是没有设置停止按钮~也是因为没学线程池~水平不够啊~
只能关闭软件来停止程序~

package cn.hncu.bs;

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.swing.JOptionPane;

/**
 *
 * @author 陈浩翔
 * @version 1.0  2016-5-12
 */
public class SpiderUi extends javax.swing.JFrame {

    public SpiderUi() {
        super("网络蜘蛛1.0-陈浩翔版权所有！");
        initComponents();

    }

    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        tfdUrl = new javax.swing.JTextField();
        jLabel3 = new javax.swing.JLabel();
        tfdTime = new javax.swing.JTextField();
        jLabel4 = new javax.swing.JLabel();
        btnRun = new javax.swing.JButton();
        jButton1 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setMinimumSize(new java.awt.Dimension(400, 400));
        getContentPane().setLayout(null);

        jLabel1.setFont(new java.awt.Font("Dialog", 1, 24));
        jLabel1.setForeground(new java.awt.Color(255, 0, 51));
        jLabel1.setText("\u7f51\u7edc\u8718\u86db-\u7f51\u9875\u90ae\u7bb1\u6293\u53d6\u56681.0");
        getContentPane().add(jLabel1);
        jLabel1.setBounds(30, 20, 350, 70);

        jLabel2.setFont(new java.awt.Font("Dialog", 1, 14));
        jLabel2.setText("\u9012\u5f52\u6df1\u5165\u5c42\u6570:");
        getContentPane().add(jLabel2);
        jLabel2.setBounds(20, 190, 110, 30);

        tfdUrl.setFont(new java.awt.Font("Dialog", 1, 12));
        getContentPane().add(tfdUrl);
        tfdUrl.setBounds(20, 140, 350, 30);

        jLabel3.setFont(new java.awt.Font("Dialog", 1, 14));
        jLabel3.setText("\u8d77\u59cbURL:");
        getContentPane().add(jLabel3);
        jLabel3.setBounds(20, 100, 70, 30);

        tfdTime.setFont(new java.awt.Font("Dialog", 1, 14));
        getContentPane().add(tfdTime);
        tfdTime.setBounds(20, 230, 60, 30);

        jLabel4.setFont(new java.awt.Font("Dialog", 0, 11));
        jLabel4.setText("\u5373\u641c\u7d22\u7f51\u9875\u90ae\u7bb1\u65f6,\u641c\u7d22\u6df1\u5165\u7684\u5c42\u6570,\u5efa\u8bae200\u5de6\u53f3");
        getContentPane().add(jLabel4);
        jLabel4.setBounds(90, 230, 250, 30);

        btnRun.setFont(new java.awt.Font("Dialog", 1, 18));
        btnRun.setForeground(new java.awt.Color(0, 51, 255));
        btnRun.setText("\u5f00\u59cb\u6293\u53d6");
        btnRun.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnRunActionPerformed(evt);
            }
        });
        getContentPane().add(btnRun);
        btnRun.setBounds(40, 300, 110, 50);

        jButton1.setFont(new java.awt.Font("Dialog", 1, 18));
        jButton1.setForeground(new java.awt.Color(0, 51, 255));
        jButton1.setText("\u5e2e\u52a9");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });
        getContentPane().add(jButton1);
        jButton1.setBounds(230, 300, 120, 50);

    }

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        JOptionPane.showMessageDialog(this, "抓取的邮箱存储在D:\\net\\mail.txt文件中\r\nURL存储在D:\\net\\http.txt文件中");
    }

    private void btnRunActionPerformed(java.awt.event.ActionEvent evt) {
        int time;
        try {
            time = Integer.parseInt(tfdTime.getText());
        } catch (NumberFormatException e1) {
            JOptionPane.showMessageDialog(this, "输入的层数格式错误！应该为整数！");
            return;
        }

        try {
            String inet = tfdUrl.getText();
            URL url = new URL(inet);
            //System.out.println(url.getHost());
            File file = new File("D://net");
            if (!file.exists()) {
                file.mkdir();
            }

            DataOutputStream dout = new DataOutputStream(
                    new BufferedOutputStream(new FileOutputStream(
                            "D:\\net\\mail.txt", true)));
            DataOutputStream doutHttp = new DataOutputStream(
                    new BufferedOutputStream(new FileOutputStream(
                            "D:\\net\\http.txt", true)));
            new Thread(new RunThread(url, time, dout, doutHttp)).start();
            //System.out.println("一个线程读取完！");
        } catch (MalformedURLException e) {
            JOptionPane.showMessageDialog(this, "请输入正确的URL地址！！");
            return;
        } catch (IOException e) {
            JOptionPane.showMessageDialog(this, "请输入正确的URL地址！！");
            return;
        }
    }

    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new SpiderUi().setVisible(true);
            }
        });
    }

    private javax.swing.JButton btnRun;
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JTextField tfdTime;
    private javax.swing.JTextField tfdUrl;
}

class RunThread implements Runnable {
    private URL url = null;
    private int time = 0;
    private DataOutputStream dout = null;
    DataOutputStream doutHttp = null;

    public RunThread() {
    }

    public RunThread(URL url, int time, DataOutputStream dout,
            DataOutputStream doutHttp) {
        this.url = url;
        this.time = time;
        this.dout = dout;
        this.doutHttp = doutHttp;
    }

    @Override
    public void run() {
        try {
            if (time == 0) {
                return;
            }
            BufferedReader br = new BufferedReader(new InputStreamReader(

            url.openStream()));
            String regex = "\\w+@\\w+(\\.\\w+)+";

            Pattern p = Pattern.compile(regex);

            Pattern pUrl = Pattern
                    .compile("http://([\\w-]+\\.)+[\\w-]+(/[\\w- ./?%&=]*)?");

            String line = null;
            while ((line = br.readLine()) != null) {
                Matcher m = p.matcher(line);

                Matcher mUrl = pUrl.matcher(line);
                while (mUrl.find()) {
                    try {
                        BufferedReader br2 = new BufferedReader(
                                new InputStreamReader(new FileInputStream(
                                        "http.txt")));
                        String s = null;
                        boolean is = false;
                        while ((s = br2.readLine()) != null) {
                            if (s.equals(mUrl.group())) {
                                is = true;
                                break;
                            }
                        }
                        if (is) {
                            continue;
                        }
                        if (mUrl.group().endsWith("jpg")) {
                            continue;
                        }
                        if (mUrl.group().endsWith("png")) {
                            continue;
                        }
                        //System.out.println(mUrl.group());
                        doutHttp.writeBytes(mUrl.group() + "\r\n");
                        doutHttp.flush();//流刷新缓存
                        new Thread(new RunThread(new URL(mUrl.group()), time--,
                                dout, doutHttp)).start();
                        //creat(mUrl.group(), new URL(mUrl.group()),time--, dout,doutHttp);
                    } catch (Exception e) {
                        //System.out.println("URL错误");
                        return;
                    }
                }

                while (m.find()) {
                    BufferedReader br2 = new BufferedReader(new

                    InputStreamReader(new FileInputStream("chx.txt")));
                    String s = null;
                    boolean is = false;

                    while ((s = br2.readLine()) != null) {
                        if (s.equals(m.group())) {
                            is = true;
                            break;
                        }
                    }

                    if (is) {
                        continue;

                    }
                    dout.writeBytes(m.group() + "\r\n");
                    dout.flush();
                    //System.out.println(m.group());
                }

            }
        } catch (FileNotFoundException e) {
            //System.out.println("文件错误");
            return;
        } catch (IOException e) {
            //System.out.println("URL异常");
            return;
        }
    }
}

程序主界面图：