c# - 从 aspx 页面解析到文本文档

Question

使用 C# 或 VB.Net 代码从链接 (http://24.173.220.131/carter/currentinmates.aspx) 下载。然后将页面中的属性解析为文本文档。

输出 ：

姓名|出书日期|收费|保释|发行|机构 ANDERSON, JAYME RAMONE|05/04/2012|判刑|$0.00|5/2/2022|在 ANDERSON, JEFFERY CONARD 转身|02/06/2012|判刑|$0.00| 2/5/2022|卡特县治安官部门

Answer 1

添加对 的引用CsQuery，将其安装在 NuGet 中或在此处找到它https://github.com/jamietre/CsQuery

using System;
using System.Collections.Generic;
using System.Collections.Concurrent;
using System.Diagnostics;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Text;
using CsQuery;

class Program
{
    static void Main(string[] args)
    {

        var stringBuilder = new StringBuilder();
        var url = "http://24.173.220.131/carter/currentinmates.aspx";
        CQ.CreateFromUrlAsync(url)
           .Then(response =>
           {
               var dom = response.Dom;
               var trs = dom.Select("#dgrdLandRecords tr").Elements;
               foreach (var row in trs)
               {
                   stringBuilder.AppendLine();
                   var tds = row.ChildElements.ToList();

                   for (int i = 1; i < tds.Count; i++)
                   {
                       stringBuilder.Append(tds[i].Cq().Text());
                       stringBuilder.Append("|");
                   }
               }
               var result = stringBuilder.ToString();
               Console.Write(result);
           });


        Console.WriteLine("Press any key to exit.");
        Console.ReadKey();
    }
}

Answer 2

使用WebClient 类正是您正在寻找的。

Public Class Test

Public Shared Sub Main(args() As String)
    Dim sURL as String
    If args Is Nothing OrElse args.Length = 0 Then
        'Throw New ApplicationException("Specify the URI of the resource to retrieve.")
         sURL = http://24.173.220.131/carter/currentinmates.aspx"
    Else
        sURL = args(0)
    End If
    Dim client As New WebClient()

    ' Add a user agent header in case the 
    ' requested URI contains a query.
    client.Headers.Add("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)")

    Dim data As Stream = client.OpenRead(sURL)
    Dim reader As New StreamReader(data)
    Dim s As String = reader.ReadToEnd()
    Console.WriteLine(s)

    'Here write the variable `s` to a Text file, eg My.File.Create(s)

    data.Close()
    reader.Close()
End Sub 'Main
End Class 'Test