Get values from a .txt_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-03-25 00:59 出处：网络

I have a file.txt like this: This is only a part of the .txt file <!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"

相关专题：c#-4.0

I have a file.txt like this:

This is only a part of the .txt file

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>GeoServer Configuration</title>
<meta name="ROBOTS" content="NOINDEX, NOFOLLOW"/>
</head>
<body>

Workspaces
<ul>
<li>
<a href="http://xxxxxx:8080/geoserver/rest/workspaces/worldmap1.html">worldmap1</a>
</li>
<li>
<a href="http://xxxxxx:8080/geoserver/rest/workspaces/worldmap2.html">worldmap2</a>
</li>
</ul>
</body>
</html>

It´s possible to get the value ? I´m trying to pass the .txt to a .xml file but I have some problems because is not 开发者_高级运维a well formed xml.

Thanks in advance

first you have to add a root element. Let's suppose you create an XML file named TextFile1.xml which contains the below XML

<Item>
<li>
  <a href="http://10.80.14.188:8080/geoserver/rest/workspaces/worldmap1.html">worldmap1</a>
</li>
<li>
  <a href="http://10.80.14.188:8080/geoserver/rest/workspaces/worldmap2.html">worldmap2</a>
</li>
</Item>

Get values from a .txt

you can do the below to get the href value

public static class MyClass
    {
        public static void Main()
        {
            var xmldoc = XDocument.Load(@"TextFile1.xml");
            XNamespace p = "http://www.w3.org/1999/xhtml";
            var result = from item in xmldoc.Descendants(p + "a")
                         select item;

            foreach (var item in result.ToList())
            {
                string href = item.Attribute("href").Value;
                var splitHref = href.Split('/');
                string page = splitHref[splitHref.Length - 1];
            }
        }
    }

If this is the only input you have, you could change it into a valid xml document by adding a root node:

<root>
  <li><a href="http://10.80.14.188:8080/geoserver/rest/workspaces/worldmap1.html">worldmap1</a></li>
  <li><a href="http://10.80.14.188:8080/geoserver/rest/workspaces/worldmap2.html">worldmap2</a></li>
</root>

(This is easy to do with some simple string concatenation)

The document is now well-formed XML, hence you ca use Linq to XML or any other XML APIs to read the values you require.

Adding a root node seems the solution but if you cannot change the input, you can use regular expressions.