公司搜索--关于搜索引擎结果的析出(通过工商码实现)

昨天写了一版，通过搜索引擎来找公司的名称，好多前辈提出来这个的方式有些偏，于是就使用工商码来实现了一个，两个东西放在一起。先上界面

右边的输入框是填从哪个工商码开始找的，因为好多年前的公司我们肯定是不需要的了，再加上，编码的前八位是地区码，所以，我写了两个，一个是在市区的公司，一个是江宁的，找出一公司分别是两家公司之后在同一地区注册的。结束条件是，一连两条数据没有找到结果，当然，这其中还有校验码的问题，就是大家看见的代码中要除以10再从1加到9的效果。

效果很好，打算一直让它跑着，等数据跑出来了，文件另存为.xls文件 ，可以直接 用excel打开，这两个地区找完了，再去找其它地区的。

好了，上代码 ，其实代码很简单：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Windows.Forms;

namespace SearchCompany
{
    public partial class Form2 : Form
    {
        string startCode;
        public delegate void MyInvoke1(string str, int type);
        public delegate void MyInvoke2(ListViewItem lvi,int type);
        public volatile bool WaitingStop = false;
        Thread td;
        DateTime startDateTime;
        public Form2()
        {
            InitializeComponent();
            timer1.Interval = 500;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (button1.Text == "暂停")
            {
                WaitingStop = true;
                button1.Text = "开始";
                label2.Text = "已停止";
                textBox1.Enabled = true;
                textBox1.Text = label2.Text.Trim();
                timer1.Stop();
            }
            else
            {
                if (textBox1.Text.Trim() != "")
                {
                    WaitingStop = false;
                    startCode = textBox1.Text.Trim();
                    td = new Thread(new ThreadStart(GetCompany));
                    td.IsBackground = true;
                    td.Start();
                    button1.Text = "暂停";
                    textBox1.Enabled = false;
                    startDateTime = DateTime.Now;
                    timer1.Start();
                }
            }
        }
        public void AddListView(ListViewItem lvi,int type)
        {
            if(type==0)
            {

                if (listView1.InvokeRequired)
                {
                    MyInvoke2 _myInvoke2 = new MyInvoke2(AddListView);
                    this.Invoke(_myInvoke2, new object[] { lvi, type });
                }
                else
                {
                    listView1.Clear();
                }
            }
            else if (type == 1)
            {

                if (listView1.InvokeRequired)
                {
                    MyInvoke2 _myInvoke2 = new MyInvoke2(AddListView);
                    this.Invoke(_myInvoke2, new object[] { lvi, type });
                }
                else
                {
                    listView1.Items.Add(lvi);
                }
            }
        }
        public void setFromThread(string str,int type)
        {
            if (type == 0)
            {
                if (label2.InvokeRequired)
                {
                    MyInvoke1 _myInvoke = new MyInvoke1(setFromThread);
                    this.Invoke(_myInvoke, new object[] { str, type });
                }
                else
                {
                    label2.Text = str;
                }
            }
            else if (type == 1)
            {
                if (textBox2.InvokeRequired)
                {
                    MyInvoke1 _myInvoke = new MyInvoke1(setFromThread);
                    this.Invoke(_myInvoke, new object[] { str, type });
                }
                else
                {
                    textBox2.Text = str;
                }
            }
        }
        public void GetCompany()
        {
            for (int line=0; line < textBox1.Lines.Count(); line++)
            {
                try
                {
                    long startCode = long.Parse(textBox1.Lines[line].Trim());
                    long Code = startCode / 10;
                    bool breakwhile = false;
                    int NullCounut = 0;
                    while (!WaitingStop)
                    {
                        if (NullCounut > 2) break;
                        for (int i = 0; i < 10; i++)
                        {
                            long realCode = Code * 10 + i;
                            setFromThread("当前探测的编码为：" + realCode.ToString().Trim(), 0);
                            HttpWebRequest request;
                            StringBuilder sbPageString = new StringBuilder();
                            request = (HttpWebRequest)WebRequest.Create(@"http://www.njgs.gov.cn/CorpQuery");
                            request.MaximumAutomaticRedirections = 500;
                            request.Method = "Post";
                            request.ContentType = "application/x-www-form-urlencoded";
                            string postString = "txtRegNoOrCorpName=" + realCode.ToString() + "&Submit2=";
                            byte[] postData = Encoding.UTF8.GetBytes(postString);
                            request.CookieContainer = new CookieContainer();
                            request.Timeout = 3000;
                            request.Headers.Set("Pragma", "no-cache");
                            request.ContentLength = postData.Length;
                            Stream requestStream = request.GetRequestStream();
                            requestStream.Write(postData, 0, postData.Length);
                            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                            Stream sm = response.GetResponseStream();
                            Encoding ecode = Encoding.GetEncoding("utf-8");
                            StreamReader sr = new StreamReader(sm, ecode);
                            string pages = sr.ReadToEnd();
                            //从pages里面取下一页的地址/s?.*(?="sclass="n">下一页&gt;</a><span class="nums" style="margin-left:120px">)
                            setFromThread(pages, 1);
                            //int i;
                            Regex NameRgx = new Regex(@"(?<=企业名称</th>
s*?<td>s*).+?(?=</td>)");
                            Match MC = NameRgx.Match(pages, 0, pages.Length);
                            if (MC.Success)
                            {
                                ListViewItem lvi = new ListViewItem();
                                string[] item = { MC.Value.ToString(), getData(pages, "注册时间"), getData(pages, "企业注册号"), getData(pages, "登记机关"), getData(pages, "企业状态") };
                                lvi.SubItems.AddRange(item);
                                AddListView(lvi, 1);
                                Code++;
                                break;
                            }
                            if (i == 9) NullCounut++;
                        }
                        Code++;
                    }
                    setFromThread(Code.ToString() + "0", 0);
                }
                catch (Exception ex)
                {
                    setFromThread("出现异常：" + ex.Message.ToString(), 0);
                }
            }
        }
        private string getData(string pages,string str)
        {
            Regex NameRgx = new Regex(@"(?<="+str+@"</th>
s*?<td>s*).+?(?=</td>)");
            Match MC = NameRgx.Match(pages, 0, pages.Length);
            if (MC.Success)
            {
                
                return MC.Value.ToString();
            }else{
                return "无";
            }
        }
        private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                Regex rgx = new Regex(textBox4.Text.Trim());
                Match mc = rgx.Match(textBox2.Text.Trim());
                if (mc.Success)
                {
                    textBox3.Text = mc.Value;
                }
                else
                {
                    textBox3.Text = "未匹配到";
                }
            }
            catch (Exception ex)
            {
                textBox3.Text = ex.Message.ToString();
            }
        }

        private void textBox4_TextChanged(object sender, EventArgs e)
        {
            try
            {
                Regex rgx = new Regex(textBox4.Text.Trim());
                Match mc = rgx.Match(textBox2.Text.Trim());
                if (mc.Success)
                {
                    textBox3.Text = mc.Value;
                }
                else
                {
                    textBox3.Text = "未匹配到";
                }
            }
            catch (Exception ex)
            {
                textBox3.Text = ex.Message.ToString();
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            listView1.Clear();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            label3.Text = "已查询时间：" + (DateTime.Now - startDateTime).ToString();
        }

        private void button2_Click_1(object sender, EventArgs e)
        {
            saveFileDialog1.DefaultExt = ".xls";
            if (saveFileDialog1.ShowDialog() == DialogResult.OK)
            {
                try
                {
                    System.IO.FileStream fs = (System.IO.FileStream)saveFileDialog1.OpenFile();
                    
                    StreamWriter sw = new StreamWriter(fs);
                    sw.WriteLine("公司名称" + "	" + "注册时间" + "	" + "企业注册号" + "	" + "登记机关" + "	" + "企业状态");
                    for (int i = 0; i <listView1.Items.Count; i++)
                    {
                        sw.WriteLine(listView1.Items[i].SubItems[1].Text.ToString() + "	" + listView1.Items[i].SubItems[2].Text.ToString() + "	" + listView1.Items[i].SubItems[3].Text.ToString() + "	" + listView1.Items[i].SubItems[4].Text.ToString() + "	" + listView1.Items[i].SubItems[5].Text.ToString());
                    }
                    sw.Flush();
                    sw.Close();
                    fs.Close();
                    MessageBox.Show("文件保存成功");
                }
                catch (Exception ex)
                {
                    MessageBox.Show("异常：
{0}", ex.Message.ToString());
                }
            }
        }
    }
    
}

小弟抛砖引玉了，希望大家多提意见，轻喷~~~