目前NBS上有2015-2018四个年度的代码信息。
写一个控制台程序搞下来一个县的代码：
主方法
1 class Program
2 {
3 static void Main(string[] args)
4 {
5 Console.ForegroundColor = ConsoleColor.Magenta;
6 Console.WriteLine("\r\n----获取县级行政区乡、村二级区划代码");
7 Console.WriteLine("----数据年份有：");
8 Console.ResetColor();
9 Cursor.WriteAt("A、2018", 2, 0);
10 Cursor.WriteAt("B、2017", 12, 0);
11 Cursor.WriteAt("C、2016", 2, 1);
12 Cursor.WriteAt("D、2015", 12, 1);
13 Input: Console.ForegroundColor = ConsoleColor.Magenta;
14 Console.WriteLine();
15 Console.WriteLine("----请输入一个年份代码（回车提交）：");
16 Console.ResetColor();
17 char chr = Convert.ToChar( Console.ReadLine().ToLower()[0]);
18 if ((int)chr >= 97 &&(int)chr <= 100)
19 {
20 string year = string.Empty;
21 switch (chr)
22 {
23 case ‘a‘:
24 year = "2018"; break;
25 case ‘b‘:
26 year = "2017"; break;
27 case ‘c‘:
28 year = "2016"; break;
29 default:
30 year = "2015"; break;
31 }
32 System.Diagnostics.Process.Start($"http://www.stats.gov.cn/tjsj/tjbz/tjyqhdmhcxhfdm/{year}");
33 Console.ForegroundColor = ConsoleColor.Magenta;
34 Console.WriteLine("浏览器已加载区划代码起始页，请进入县级行政单位页面，复制url，粘贴到下面（回车提交）：");
35 }
36 else
37 goto Input;
38 Console.ResetColor();
39 string cityurl = Console.ReadLine();
40 if (cityurl.Length != 66&& cityurl.Length!=71)
41 {
42 Console.ForegroundColor = ConsoleColor.Magenta;
43 Console.WriteLine("url有误，请确认是县级行政单位页面，重新复制链接，粘贴到下面：");
44 Console.ResetColor();
45 cityurl = Console.ReadLine();
46 }
47 try
48 {
49 Console.ForegroundColor = ConsoleColor.Magenta;
50 List<TownInfo> townInfos = GetTownInfos(cityurl);
51 List<VillageInfo> villageInfos = new List<VillageInfo>();
52 foreach (var item in townInfos)
53 {
54 //把乡镇信息写入村级列表，实现乡镇信息输出
55 VillageInfo villageInfo_town = new VillageInfo() { code = item.code, cls = "", name = item.name };
56 villageInfos.Add(villageInfo_town);
57 villageInfos.AddRange(GetVillageInfos(item.href));
58 }
59 foreach (var item1 in villageInfos)
60 {
61 Console.WriteLine($"{item1.name.Trim()}\t{item1.cls.Trim()}\t{item1.code.Trim()}");
62 }
63 }
64 catch (Exception)
65 {
66
67 throw;
68 }
69 Console.ReadKey();
70 }
71 //获取乡镇级信息列表
72 static List<TownInfo> GetTownInfos(string cityurl)
73 {
74 List<TownInfo> townInfos = new List<TownInfo>();
75 HttpGetHelper httpGetHelper = new HttpGetHelper() { Url = cityurl, ContentType = "text/html; charset=gb2312", Encode = Encoding.GetEncoding(20936) };
76 //HtmlAgilityPack类库解析HTML
77 HtmlDocument document = new HtmlDocument();
78 document.LoadHtml(httpGetHelper.GetHtml());
79 //路径里"//"表示从根节点开始查找，两个斜杠‘//’表示查找所有childnodes；一个斜杠‘/‘表示只查找第一层的childnodes（即不查找grandchild）；点斜杠"./"表示从当前结点而不是根结点开始查找
80 HtmlNodeCollection htmlNodes = document.DocumentNode.SelectNodes("//tr[@class=‘towntr‘]");
81 foreach (var node in htmlNodes)
82 {
83 TownInfo townInfo = new TownInfo();
84 HtmlNodeCollection htmlNodes1 = node.SelectNodes("./td");
85 HtmlNode htmlNodeHref = node.SelectSingleNode(".//a[@href]");
86 HtmlAttribute htmlAttribute = htmlNodeHref.Attributes["href"];
87 townInfo.code = htmlNodes1[0].InnerText;
88 townInfo.name = htmlNodes1[1].InnerText;
89 townInfo.href = cityurl.Substring(0, cityurl.LastIndexOf(‘/‘)+1) + htmlAttribute.Value;
90 townInfos.Add(townInfo);
91 }
92 return townInfos;
93 }
94 //获取村级信息列表
95 static List<VillageInfo> GetVillageInfos(string townurl)
96 {
97 List<VillageInfo> villageInfos = new List<VillageInfo>();
98 HttpGetHelper httpGetHelper = new HttpGetHelper() { Url = townurl, ContentType = "text/html; charset=gb2312", Encode = Encoding.GetEncoding(20936) };
99 HtmlDocument document = new HtmlDocument();
100 document.LoadHtml(httpGetHelper.GetHtml());
101 HtmlNodeCollection htmlNodes = document.DocumentNode.SelectNodes("//tr[@class=‘villagetr‘]");
102 foreach (var node in htmlNodes)
103 {
104 VillageInfo villageInfo = new VillageInfo();
105 HtmlNodeCollection htmlNodes1 = node.SelectNodes(".//td");
106 villageInfo.code = htmlNodes1[0].InnerText;
107 villageInfo.cls = htmlNodes1[1].InnerText;
108 villageInfo.name = htmlNodes1[2].InnerText;
109 villageInfos.Add(villageInfo);
110 }
111 return villageInfos;
112 }
113 }
辅助类/结构
internal class Cursor
{
const int origRow = 3;
const int origCol = 0;
public static void WriteAt(string s, int c, int r)
{
Console.SetCursorPosition(origCol + c, origRow + r);
Console.Write(s);
}
}
//乡镇信息结构 编码、名称、超链
struct TownInfo { public string code, name, href; }
//村信息结构 编码、城乡划分类，名称
struct VillageInfo { public string code, cls, name; }
Get请求，获取HTML
1 public class HttpGetHelper
2 {
3 string url = string.Empty;
4 public string Url
5 {
6 set { url = value; }
7 }
8
9 int timeOut=10*1000;
10 public int Timeout
11 {
12 set { timeOut = value; }
13 }
14
15 string contentType= "text/html;charset=utf-8";
16
17 public string ContentType
18 {
19 set { contentType = value; }
20 }
21
22 string userAgent= "Mozilla / 5.0(Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0 ";
23 public string UserAgent
24 {
25 set { userAgent = value; }
26 }
27
28 Encoding encode=Encoding.UTF8;
29 public Encoding Encode
30 {
31 set { encode = value; }
32 }
33 public string GetHtml()
34 {
35 string html = string.Empty;
36 try
37 {
38 if (url!=string.Empty)
39 {
40 HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest;
41 request.Timeout = this.timeOut;
42 request.ContentType = this.contentType;
43 request.UserAgent = this.userAgent;
44 using (HttpWebResponse response =request.GetResponse()as HttpWebResponse)
45 {
46 if (response.StatusCode==HttpStatusCode.OK)
47 {
48 using (StreamReader streamReader = new StreamReader(response.GetResponseStream(), encode))
49 {
50 html = streamReader.ReadToEnd();
51 streamReader.Close();
52 }
53 }
54 }
55 }
56 }
57
58 catch (Exception)
59 {
60 throw new Exception($"GetHtml失败，url:{url}");
61 }
62 return html;
63 }
64 }
原文地址：https://www.cnblogs.com/yzhyingcool/p/10705889.html
时间： 2024-10-20 14:26:01