How to extract HTML table contents

Question

Does someone know how to extract HTML table contents? I want to download a html file which contains table from internet and extract the table contents. Finally, insert the table contents into database.

Answer 1

To do this you have to user a Parser to parse your html file and retrieve the information you want.
Please have a look at the following classes:
HTMLEditorKit.ParserCallback
ParserDelegator()
Here is an example which retrives the FRAMSET src of an html file. The purpose here is to find if the html file describes a multi-frame page or not. If so it add the frame src name to a Vector
HTMLEditorKit.ParserCallback callback =
new HTMLEditorKit.ParserCallback() {                      public void handleSimpleTag(HTML.Tag t,      MutableAttributeSet a, int pos)
     if (t.equals(HTML.Tag.FRAME))
{                                          Logger.debug(this, "Frame tag found in "+f.getURL());                      Enumeration e = a.getAttributeNames();
while (e.hasMoreElements())
                         Object name = e.nextElement();
                         if (name.toString().equals("src"))
                              Object ob = a.getAttribute(name);                     
                              Logger.debug("found an src "+ob);
                              currentFrameSrc.add(new String(ob.toString()));
               Reader reader = new FileReader(aFile);
                    new ParserDelegator().parse(reader, callback, false);
It's not clean but I hope it will help :-)
Stephane