A melhor comparacao e' entre JSPs e ASP/PHP ... mas todo JSPs e' compilado
em um servlet automaticamente.....
Para ver uma comparacao entre ASP e JSPs veja esta pagina :
http://java.sun.com/products/jsp/jsp-asp.html
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Question What is the difference between JSP and PHP?
Topics Java:API:JSP
Author Alex Chaffee
Created Feb 1, 2000 Modified Feb 1, 2000
Answer
PHP is an open-source page scripting/templating system that is very similar
to JSP and ASP. It defines its own scripting language, which looks and feels
a lot like Perl. JSP uses Java as its scripting language (although some
implementations support JavaScript, such as Caucho). ASP uses VBScript.
PHP is very popular -- it is used on over a million web sites -- but its
main advantage (IMHO) seems to be that the language, being more "scripty"
and Perl-like, is less intimidating to the great unwashed mass of HTML
monkeys and hackers. In the long run, JSP and Java provide a more powerful
system.
Here is a list of reasons why JSP is better than PHP:
Anything you can do with PHP, you can do with JSP; the reverse is not true
JSP is much more powerful, since it has access to all the Java libraries.
PHP only has access to PHP libraries
JSP is Object-Oriented, so leads to cleaner code that's easier to debug,
maintain, and improve. (PHP also allows objects, but the object model is
more primitive, and most scripted pages ignore PHP objects and just use
normal variables.)
The equivalent syntax in JSP is just as simple to learn, so you can get up
and running just as quickly -- that is, there's no extra startup cost in
using Java, at least not a significant one
Java programmers (as opposed to 15-year-old hackers or HTML monkeys)
appreciate the importance of a clean language with complex OO data
structures and strong typing
With JSP, if the code inside a page gets too big, or if you want to use it
elsewhere, you can cut it out, make it into a Java class, and invoke it from
anywhere in your application (even not from a page). With PHP, you're stuck
inside the HTML box.
JSP's concept of state management and persistence is more explicit and
powerful than PHP's. With JSP, you can specify whether a variable persists
for the page, the request, the session, or the application (or if it's just
local to the function). The JSP engine automatically does the right thing
with cookies so you have access to the variable on later requests. With PHP,
you just have "global" and "not global", you don't have automatic session
management, and have to do your state thing manually with cookies or hidden
variables.
> -----Original Message-----
> From: Adriano Gonella [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, July 12, 2001 11:45 PM
> To: [EMAIL PROTECTED]
> Subject: [java-list] Servelts
>
>
> por acaso poderiam me ajudar a entender a grande utilidade de
> servelt ,,
> se temos php ou asp
>
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