Who can introduce me to Servlet?

i'm the asp programmer and want to go to Servlet.
Anyone can give me good tutorial and example for green horn?(database driven example)
[ April 12, 2002: Message edited by: WiLL Tao ]

Hi,
Servlets are serverside programs in java ,which r run on a webserver .its similar to ASP ,but asp is a scripting language.The javas version of
ASP is JSP.u can get an idea on servlets at
http://java.sun.com/docs/books/tutorial/servlets/overview/index.html
cheers,
Raj

Thanks Rajendar.
I know asp,jsp and servlet.
And i'm tired of scripting program,it seems to haven't good structure and hard maintenance.(this only my personal viewpoint,so don't be angry,guys

)
Now i want to implement OO Design Pattern on WebSite develop,Is the Servlet a good start point?
Thanks for reply.

Yes, servlets can follow the best OO practices. You might start by downloading the Tomcat server/servlet engine from jakarta.apache.org
There are a large number of projects all taking different approaches to applying good design patterns to servlets and web site design. The "Struts" package seems to be highly thought of. (shameless-plug)Naturally you should buy my book.(/shameless-plug)
Bill

thanks William .
'Java Developer's Guide to Servlets and JSP' is godd for me,right?
ps. i feel bit excited that I can talk with author directly and closely.