The Advantages of Servlets 

Over  Traditional  CGI

Efficient 

Threads instead of OS processes, one servlet copy, 

persistence

Convenient

Lots of high level utilities

Powerful

Sharing data, pooling, persistence

Portable

Run on virtually all operating systems and servers

Secure

No shell escapes, no buffer overflows

Inexpensive

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Servlets

www.corewebprogramming.com

Why Build Pages Dynamically?

The Web page is based on data submitted 

by the user

E.g., results page from search engines and order 

confirmation pages at on line stores

The Web page is derived from data that 

changes frequently

E.g., a weather report or news headlines page 

The Web page uses information from 

databases or other server side sources 

E.g., an e commerce site could use a servlet to build a 

Web page that lists the current price and availability of 

each item that is for sale

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Servlets

www.corewebprogramming.com

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