Html Agility Pack 寻找视频源
嘿，我正在尝试在网页源中找到冲击波视频的参数。来源看起来像这样：
<object align="middle" width="480" height="320" viewastext="" id="player" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000">
<param value="sameDomain" name="allowScriptAccess">
<param value="http://mediawebsite.com/lcmplayer.swf?autoStart=1&hidecontrols=1&&noresize=1&file=http%3A%2F%2Ftx02.us.mediawebsite.com%2Fedge2%2F31dfty452611%26sec%3D1090" name="movie">
<param value="best" name="quality">
<param value="#000000" name="bgcolor">
<param value="true" name="allowFullScreen">
<param value="" name="FlashVars">
<embed align="middle" width="480" height="320" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="sameDomain" name="player" bgcolor="#000000" flashvars="" quality="best" src="http://mediawebsite.com/lcmplayer.swf?autoStart=1&hidecontrols=1&&noresize=1&file=http%3A%2F%2Ftx02.us.mediawebsite.com%2Fedge2%2F31dfty452611%26sec%3D1090">
</object>
我只需要从上面得到这个：
http://mediawebsite.com/lcmplayer.swf?autoStart=1&hidecontrols=1&&noresize=1&file=http%3A%2F%2Ftx02.us.mediawebsite.com%2Fedge2%2F31dfty452611%26sec %3D1090
或 < 范围内的任何内容。 param value="http://xxxxxxxxx HTML 代码。哦，当然，HTML 代码链接可能会更改每次刷新，所以这就是为什么我需要获取参数内的内容。
我正在使用 HtmlAgilityPack如标题和 VB.net 2008 中所述。
这是我当前用于加载 HTML 并解析它的代码：
Imports HtmlAgilityPack
Imports System.Text.RegularExpressions
Private Sub getVidLink()
Dim doc As New HtmlDocument()
'doc.LoadHtml("<html><body><p><table id=""foo""><tr><th>hello</th></tr><tr><td>world</td></tr></table></body></html>")
doc.Load("C:\kathryn\fpHTML.html")
For Each table As HtmlNode In doc.DocumentNode.SelectNodes("//object")
Debug.Print("Found: " + table.Id)
For Each row As HtmlNode In table.SelectNodes("param")
Debug.Print(row.Id)
Next
Next
End Sub
但它没有找到参数的任何值，它们都是空白的？...
任何帮助都会很棒。 ！
大卫
Hey all i am trying to find the param for a shockwave video within the web page source. The source looks like this:
<object align="middle" width="480" height="320" viewastext="" id="player" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000">
<param value="sameDomain" name="allowScriptAccess">
<param value="http://mediawebsite.com/lcmplayer.swf?autoStart=1&hidecontrols=1&&noresize=1&file=http%3A%2F%2Ftx02.us.mediawebsite.com%2Fedge2%2F31dfty452611%26sec%3D1090" name="movie">
<param value="best" name="quality">
<param value="#000000" name="bgcolor">
<param value="true" name="allowFullScreen">
<param value="" name="FlashVars">
<embed align="middle" width="480" height="320" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="sameDomain" name="player" bgcolor="#000000" flashvars="" quality="best" src="http://mediawebsite.com/lcmplayer.swf?autoStart=1&hidecontrols=1&&noresize=1&file=http%3A%2F%2Ftx02.us.mediawebsite.com%2Fedge2%2F31dfty452611%26sec%3D1090">
</object>
I'm just needing to get this from the above:
http://mediawebsite.com/lcmplayer.swf?autoStart=1&hidecontrols=1&&noresize=1&file=http%3A%2F%2Ftx02.us.mediawebsite.com%2Fedge2%2F31dfty452611%26sec%3D1090
or whatever it could be within the < param value="http://xxxxxxxxx HTML code. Oh course that HTML code link could change every refresh so thats why i need to just get whats inside the param.
I am using HtmlAgilityPack as stated in the title and VB.net 2008.
This is my current code i am using to load the HTML and parse it:
Imports HtmlAgilityPack
Imports System.Text.RegularExpressions
Private Sub getVidLink()
Dim doc As New HtmlDocument()
'doc.LoadHtml("<html><body><p><table id=""foo""><tr><th>hello</th></tr><tr><td>world</td></tr></table></body></html>")
doc.Load("C:\kathryn\fpHTML.html")
For Each table As HtmlNode In doc.DocumentNode.SelectNodes("//object")
Debug.Print("Found: " + table.Id)
For Each row As HtmlNode In table.SelectNodes("param")
Debug.Print(row.Id)
Next
Next
End Sub
But its not finding any values for the param. They are all blank?...
Any help would be great!
David
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应该给你你需要的东西
should give you what you need