Working of Tags in UI Tags in Struts2

[Ravi Kiran Va]

Hi ,

<%@ taglib prefix="s" uri="/struts-tags" %>
<s:actionerror />
<s:fielderror />
<s:textfield name="username" label="Login name"/>
<s:password name="password" label="Password"/>
<s:submit value="Login" align="center"/>

Can you please tell me how this is working ??

There is nothing mentioned like taglibs inside the web.xml ??How this is working actually ?? 

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[David Newton]

Taglib declarations in the web.xml haven't been required for several years.

What exactly do you want to know?