what is: form action="/"?

I am using java to write to url, http://fatigo.bioinfo.cnio.es/ , but
I found the form is :

<form method="post" action="/" enctype="multipart/form-data"
name="fatigo">


I have no idea why the action is not a URL, can you explain it why.

Thanks.

Zhidian Du wrote:

I am using java to write to url, http://fatigo.bioinfo.cnio.es/ , but
I found the form is :

form method="post" action="/" enctype="multipart/form-data"
name="fatigo"


I have no idea why the action is not a URL, can you explain it why.

The action is a URL: it is the URL whatever the server is configured to
serve at the root of the current webspace. It could be "index.php" for
example.

It's the same mechanism that allows you to type:

http://www.example.com/

instead of

http://www.example.com/index.php

--
Mark.