title: Parse Jsp file and find specific tags using Java
body: <p>I need a way to find specific tags in my class.</p>
  
  <p>Example code :</p>
  
  <pre><code>&lt;ace:column id="test1"&gt;&lt;/ace:column&gt;                        
  &lt;ace:column id="test2"&gt;&lt;/ace:column&gt;                        
  &lt;ice:panelGrid id="test3" columns="4" /&gt;
  </code></pre>
  
  <p>Now I want to process the file with above contents ,parse it and get all the tag values with identifier "id".</p>
  
  <p>I would expect to get </p>
  
  <pre><code>test1
  test2
  test3
  </code></pre>
  
  <p>Thanks.</p>