title: How can I extract links from HTML?
body: <p>I want to extract URLs from HTML to store in a CLOB datatype within an Oracle database.</p>
  
  <p>Part of the HTML file looks like this:</p>
  
  <pre><code>&lt;a class="href_class" href="/download/file.zip"&gt;&lt;/a&gt;
  </code></pre>
  
  <p>I only need to take this part from HTML: <code>/download/file.zip</code> and put all the download links in the database. How, in regexp, can I indicate that the class name is matching a specific value like <code>href_class</code>?</p>
  
  <p>I want to know what is the best way to resolve this problem with regexp or some other methods?</p>