我需要从网站上获取时间表。我想将此时间表存储/添加到我的C#应用程序中的数据表中。
数据表的结构如下所示:
1. | Day | Time | Status | 2. ..1.......7:00.........IN 3. ..1.......9:45.......OUT 4. ..1......10:15........IN 5. ..1......15:45......OUT 6. ..1.......8:45.....TOTAL 7. ..2 .. ..
DataTable的我的C#代码:
DataTable table = new DataTable("Worksheet");
table.Columns.Add("Day");
table.Columns.Add("Time");
table.Columns.Add("Status");
我尝试了不同的变体,而且我总是搞砸了所有的数据。
出于测试目的,我创建了一个新的Winform,其中包含一个“文本框”(用于站点路径)和“按钮”(用于启动该过程)
然后我希望HTMLAgilityPack获取所有数据。一个例子:
public string[] GREYsource;
public Form1()
{
InitializeComponent();
}
private void btnSubmit_Click(object sender, EventArgs e)
{
var doc = new HtmlAgilityPack.HtmlDocument();
var fileName = txtPath.Text; // I downloaded the HTML-File
doc.Load(fileName);
string strGREYInner;
foreach (HtmlNode td in doc.DocumentNode.SelectNodes("//tr[@class=\"tblDataGreyNH\"]"))
{
strGREYInner = td.InnerText.Trim();
string shorted = strGREYInner.Replace("\t", ""); string shorted2 = shorted.Replace("\n\n\n\n", "\n\n\n"); string shorted3 = shorted2.Replace("\n\n\n", "\n\n"); string shorted4 = shorted3.Replace("\n\n", "\n");
GREYsource = shorted4.Split(new Char[] { '\n', });
}
foreach (string str in GREYsource)
{
...
}
}
可以做得更好。
这只是我试过的一个例子(其他代码只是一堆垃圾)
我附上了以下HTML结构:
概述(图片):
更深入一点:
<html>
<head>
</head>
<style type="text/css">
</style>
<body id="body" onload="handleMenuOverlapLogo();onload_column_expand();;firstElementFocus();">
<.. some (java)scripts> /* has to be ignoered. not necessary */
<.. some other divs> /* has to be ignoered. not necessary */
<div id="rowContent"> /* This <div> contains the content i need */
<div id="titleTab"> /* Title is not necessary */
</div>
<div id="rowContentInner"> /* Here the content starts */
<table class="tblList">
<tbody>
<tr> /* not necessary */
<tr class="tblHeader"> /* not necessary */
<tr class="tblHeader"> /* not necessary */
<tr class="tblDataWhiteNH"> /* IN : */
<td class="tblHeader" style="font-weight: bold; text-align: right"> In </td>
<td nowrap=""> /* "tblDataWhiteNH" always contains 7 "td nowrap"
<td nowrap="">
<td nowrap=""> /* Example: if it contains a value */
<table width="100%" border="0" align="center">
<tbody>
<tr>
<td width="25%" align="left"> </td>
<td nowrap="" width="50%" align="center"> 7:53 </td> /* value = 7:53 (THIS!) */
<td width="25%" align="right"> </td>
</tr>
</tbody>
</table>
</td>
<td nowrap="">
<td nowrap=""> /* Example: if it contains no value */
<table width="100%" border="0" align="center">
<tbody>
<tr>
<td width="25%" align="left"> </td>
<td nowrap="" width="50%" align="center"> /* no value = 0:00 (THIS!) */
<td width="25%" align="right"> </td>
</tr>
</tbody>
</table>
</td>
<td nowrap="">
<td nowrap="">
<tr class="tblDataWhiteNH"> /* OUT : */
<td class="tblHeader" style="font-weight: bold; text-align: right"> Out </td>
<td nowrap=""> /* "tblDataWhiteNH" always contains 7 "td nowrap".
<td nowrap="">
<td nowrap=""> /* Example: if it contains a value */
<table width="100%" border="0" align="center">
<tbody>
<tr>
<td width="25%" align="left"> </td>
<td nowrap="" width="50%" align="center"> 7:53 </td> /* value = 7:53 (THIS!) */
<td width="25%" align="right"> </td>
</tr>
</tbody>
</table>
</td>
<td nowrap="">
<td nowrap=""> /* Example: if it contains no value */
<table width="100%" border="0" align="center">
<tbody>
<tr>
<td width="25%" align="left"> </td>
<td nowrap="" width="50%" align="center"> /* no value = 0:00 (THIS!) */
<td width="25%" align="right"> </td>
</tr>
</tbody>
</table>
</td>
<td nowrap="">
<td nowrap="">
<tr class="tblDataGreyNH"> /* IN : */
<tr class="tblDataGreyNH"> /* OUT : */
... /* "tblDataGreyNH" is built up the same way like "tblDataWhiteNH".
... /* sometimes there could be more "tblDataWhiteNH" and "tblDataGreyNH". */
... /* Usally there are just the "tblDataWhiteNH"(IN/OUT) */
<tr class="tblHeader"> /* not necessary */
/* It continues f.egs. with "tblDataWhite" if the last above header was a "tblDatagrey" */
/* and versa vice ("grey" if there was a "white" before.) */
<tr class="tblDataWhiteNH"> /* Worked : */
<td class="tblHeader" style="font-weight: bold; text-align: right"> Total Time </td>
<td> 07:47 </td> /* value = 7:47 (THIS!) */
<td> 04:48 </td>
<td> 00:00 </td> /* no value = 0:00 (THIS!) */
<td> 00:00 </td>
<td> 07:42 </td>
<td> 00:00 </td>
<td> 00:00 </td>
</tr>
<tr class="tblDataGreyNH"> /* Total : */
<td class="tblHeader" style="font-weight: bold; text-align: right"> Regular Time </td>
<td> 07:47 </td> /* value = 7:47 (THIS!) */
<td> 04:48 </td>
<td> </td> /* no value = 0:00 (THIS!) */
<td> </td>
<td> 07:42 </td>
<td> </td>
<td> </td>
</tr>
<tr class="tblHeader"> /* not necessary */
<tr valign="top"> /* not necessary */
</tbody>
</table>
</div>
</div>
</body>
</html>
原始HTML的副本:http://time.wnb.dk/123/
我希望有人能帮助我实现这个目标。
好的,让我用照片解释一下。 https://www.abload.de/img/eeeqnuwu.png
在图片上,您可以看到网站+下表,结果如何。
声明数据表不是问题 主要的问题是我不能让htmlagility吐出正确的结果,如果确实如此,它几乎是错误的。 我试过的一些选择节点让输出在一段时间后搞砸了。到目前为止,我还无法从网站上的表格中获取“全部”数据,只有一些价值,但往往是错误的 所以我实际上正在寻找可以看一眼的人,也许可以帮我找到正确的选择节点。
答案 0 :(得分:1)
我不确定我完全理解你想要做什么,但这里有一个示例代码可以帮助你入门。我强烈建议您查看XPATH以了解它。
HtmlDocument doc = new HtmlDocument();
doc.Load(yourFile);
// get all TR with a specific class name, starting from root (/), and recursively (//)
foreach (HtmlNode node in doc.DocumentNode.SelectNodes("//tr[@class='tblDataGreyNH' or @class='tblDataWhiteNH']"))
{
// get all TD below the current node with a specific class name
HtmlNode inOrOut = node.SelectSingleNode("td[@class='tblHeader']");
if (inOrOut != null)
{
string io = inOrOut.InnerText.Trim();
Console.WriteLine(io.ToUpper());
if (io.Contains("Time"))
{
// normalize-space gets rid or whitespaces (\r,\n, etc.)
// text() gets the node's inner text
foreach (HtmlNode td in node.SelectNodes("td[normalize-space(@class)='' and normalize-space(text())!='' and normalize-space(text())!='00:00']"))
{
Console.WriteLine("value:" + td.InnerText.Trim());
}
}
}
// gets all TD below the current node that define the NOWRAP attribute
HtmlNodeCollection tdNoWraps = node.SelectNodes("td[@nowrap]");
if (tdNoWraps != null)
{
foreach (HtmlNode tdNoWrap in tdNoWraps)
{
string value = tdNoWrap.InnerText.Trim();
if (value == string.Empty)
continue;
Console.WriteLine("value:" + value);
}
}
}
它将从您的示例页面输出:
IN
value:7:47
value:7:46
value:7:45
value:7:51
OUT
value:15:35
value:15:33
value:12:38
value:8:59
IN
value:12:38
value:8:59
OUT
value:15:35
TOTAL TIME
value:07:48
value:07:47
value:07:50
value:01:08
REGULAR TIME
value:07:48
value:07:47
value:07:50
value:01:08