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：

  1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Data;
  5 using System.Drawing;
  6 using System.IO;
  7 using System.Linq;
  8 using System.Net;
  9 using System.Text;
 10 using System.Text.RegularExpressions;
 11 using System.Threading;
 12 using System.Windows.Forms;
 13 
 14 namespace SearchCompany
 15 {
 16     public partial class Form2 : Form
 17     {
 18         string startCode;
 19         public delegate void MyInvoke1(string str, int type);
 20         public delegate void MyInvoke2(ListViewItem lvi,int type);
 21         public volatile bool WaitingStop = false;
 22         Thread td;
 23         DateTime startDateTime;
 24         public Form2()
 25         {
 26             InitializeComponent();
 27             timer1.Interval = 500;
 28         }
 29 
 30         private void button1_Click(object sender, EventArgs e)
 31         {
 32             if (button1.Text == "暂停")
 33             {
 34                 WaitingStop = true;
 35                 button1.Text = "开始";
 36                 label2.Text = "已停止";
 37                 textBox1.Enabled = true;
 38                 textBox1.Text = label2.Text.Trim();
 39                 timer1.Stop();
 40             }
 41             else
 42             {
 43                 if (textBox1.Text.Trim() != "")
 44                 {
 45                     WaitingStop = false;
 46                     startCode = textBox1.Text.Trim();
 47                     td = new Thread(new ThreadStart(GetCompany));
 48                     td.IsBackground = true;
 49                     td.Start();
 50                     button1.Text = "暂停";
 51                     textBox1.Enabled = false;
 52                     startDateTime = DateTime.Now;
 53                     timer1.Start();
 54                 }
 55             }
 56         }
 57         public void AddListView(ListViewItem lvi,int type)
 58         {
 59             if(type==0)
 60             {
 61 
 62                 if (listView1.InvokeRequired)
 63                 {
 64                     MyInvoke2 _myInvoke2 = new MyInvoke2(AddListView);
 65                     this.Invoke(_myInvoke2, new object[] { lvi, type });
 66                 }
 67                 else
 68                 {
 69                     listView1.Clear();
 70                 }
 71             }
 72             else if (type == 1)
 73             {
 74 
 75                 if (listView1.InvokeRequired)
 76                 {
 77                     MyInvoke2 _myInvoke2 = new MyInvoke2(AddListView);
 78                     this.Invoke(_myInvoke2, new object[] { lvi, type });
 79                 }
 80                 else
 81                 {
 82                     listView1.Items.Add(lvi);
 83                 }
 84             }
 85         }
 86         public void setFromThread(string str,int type)
 87         {
 88             if (type == 0)
 89             {
 90                 if (label2.InvokeRequired)
 91                 {
 92                     MyInvoke1 _myInvoke = new MyInvoke1(setFromThread);
 93                     this.Invoke(_myInvoke, new object[] { str, type });
 94                 }
 95                 else
 96                 {
 97                     label2.Text = str;
 98                 }
 99             }
100             else if (type == 1)
101             {
102                 if (textBox2.InvokeRequired)
103                 {
104                     MyInvoke1 _myInvoke = new MyInvoke1(setFromThread);
105                     this.Invoke(_myInvoke, new object[] { str, type });
106                 }
107                 else
108                 {
109                     textBox2.Text = str;
110                 }
111             }
112         }
113         public void GetCompany()
114         {
115             for (int line=0; line < textBox1.Lines.Count(); line++)
116             {
117                 try
118                 {
119                     long startCode = long.Parse(textBox1.Lines[line].Trim());
120                     long Code = startCode / 10;
121                     bool breakwhile = false;
122                     int NullCounut = 0;
123                     while (!WaitingStop)
124                     {
125                         if (NullCounut > 2) break;
126                         for (int i = 0; i < 10; i++)
127                         {
128                             long realCode = Code * 10 + i;
129                             setFromThread("当前探测的编码为：" + realCode.ToString().Trim(), 0);
130                             HttpWebRequest request;
131                             StringBuilder sbPageString = new StringBuilder();
132                             request = (HttpWebRequest)WebRequest.Create(@"http://www.njgs.gov.cn/CorpQuery");
133                             request.MaximumAutomaticRedirections = 500;
134                             request.Method = "Post";
135                             request.ContentType = "application/x-www-form-urlencoded";
136                             string postString = "txtRegNoOrCorpName=" + realCode.ToString() + "&Submit2=";
137                             byte[] postData = Encoding.UTF8.GetBytes(postString);
138                             request.CookieContainer = new CookieContainer();
139                             request.Timeout = 3000;
140                             request.Headers.Set("Pragma", "no-cache");
141                             request.ContentLength = postData.Length;
142                             Stream requestStream = request.GetRequestStream();
143                             requestStream.Write(postData, 0, postData.Length);
144                             HttpWebResponse response = (HttpWebResponse)request.GetResponse();
145                             Stream sm = response.GetResponseStream();
146                             Encoding ecode = Encoding.GetEncoding("utf-8");
147                             StreamReader sr = new StreamReader(sm, ecode);
148                             string pages = sr.ReadToEnd();
149                             //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">)
150                             setFromThread(pages, 1);
151                             //int i;
152                             Regex NameRgx = new Regex(@"(?<=企业名称</th>
s*?<td>s*).+?(?=</td>)");
153                             Match MC = NameRgx.Match(pages, 0, pages.Length);
154                             if (MC.Success)
155                             {
156                                 ListViewItem lvi = new ListViewItem();
157                                 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") };
158                                 lvi.SubItems.AddRange(item);
159                                 AddListView(lvi, 1);
160                                 Code++;
161                                 break;
162                             }
163                             if (i == 9) NullCounut++;
164                         }
165                         Code++;
166                     }
167                     setFromThread(Code.ToString() + "0", 0);
168                 }
169                 catch (Exception ex)
170                 {
171                     setFromThread("出现异常：" + ex.Message.ToString(), 0);
172                 }
173             }
174         }
175         private string getData(string pages,string str)
176         {
177             Regex NameRgx = new Regex(@"(?<="+str+@"</th>
s*?<td>s*).+?(?=</td>)");
178             Match MC = NameRgx.Match(pages, 0, pages.Length);
179             if (MC.Success)
180             {
181                 
182                 return MC.Value.ToString();
183             }else{
184                 return "无";
185             }
186         }
187         private void button2_Click(object sender, EventArgs e)
188         {
189             try
190             {
191                 Regex rgx = new Regex(textBox4.Text.Trim());
192                 Match mc = rgx.Match(textBox2.Text.Trim());
193                 if (mc.Success)
194                 {
195                     textBox3.Text = mc.Value;
196                 }
197                 else
198                 {
199                     textBox3.Text = "未匹配到";
200                 }
201             }
202             catch (Exception ex)
203             {
204                 textBox3.Text = ex.Message.ToString();
205             }
206         }
207 
208         private void textBox4_TextChanged(object sender, EventArgs e)
209         {
210             try
211             {
212                 Regex rgx = new Regex(textBox4.Text.Trim());
213                 Match mc = rgx.Match(textBox2.Text.Trim());
214                 if (mc.Success)
215                 {
216                     textBox3.Text = mc.Value;
217                 }
218                 else
219                 {
220                     textBox3.Text = "未匹配到";
221                 }
222             }
223             catch (Exception ex)
224             {
225                 textBox3.Text = ex.Message.ToString();
226             }
227         }
228 
229         private void button3_Click(object sender, EventArgs e)
230         {
231             listView1.Clear();
232         }
233 
234         private void timer1_Tick(object sender, EventArgs e)
235         {
236             label3.Text = "已查询时间：" + (DateTime.Now - startDateTime).ToString();
237         }
238 
239         private void button2_Click_1(object sender, EventArgs e)
240         {
241             saveFileDialog1.DefaultExt = ".xls";
242             if (saveFileDialog1.ShowDialog() == DialogResult.OK)
243             {
244                 try
245                 {
246                     System.IO.FileStream fs = (System.IO.FileStream)saveFileDialog1.OpenFile();
247                     
248                     StreamWriter sw = new StreamWriter(fs);
249                     sw.WriteLine("公司名称" + "	" + "注册时间" + "	" + "企业注册号" + "	" + "登记机关" + "	" + "企业状态");
250                     for (int i = 0; i <listView1.Items.Count; i++)
251                     {
252                         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());
253                     }
254                     sw.Flush();
255                     sw.Close();
256                     fs.Close();
257                     MessageBox.Show("文件保存成功");
258                 }
259                 catch (Exception ex)
260                 {
261                     MessageBox.Show("异常：
{0}", ex.Message.ToString());
262                 }
263             }
264         }
265     }
266     
267 }

Form2的代码

小弟抛砖引玉了，希望大家多提意见，轻喷~~~

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原文地址：https://www.cnblogs.com/ensleep/p/3338443.html