David, Here are my thoughts. We are currently looking at switching to
JSP/JavaBeans development from ASP. The advantages that I see are:
1. Platform independence
I know that 3rd-parties do offer ASP engines but then you have to worry
about their specific implementation of ASP and any bugs that they have.
2. JavaBeans
You can add or change servlet code on the server without having to register
the servlet and without restarting the web server ( or rebooting :) )
3. Freedom from IIS
I've had and heard of a lot of problems with IIS. Ocassionally it goes down
or locks up without any warning or messages in the Error logs or event
viewer.
These are some of the reasons for my consideration. My concerns are
performance and finding qualified Java developers. These are just my
impressions so far. I am actively researching this topic and would to hear
from the rest of you on this topic.
> -----Original Message-----
> From: David Geary [SMTP:[EMAIL PROTECTED]]
> Sent: Friday, November 05, 1999 9:02 PM
> To: [EMAIL PROTECTED]
> Subject: JSP vs. ASP
>
> I just finished reading Sun's "Comparing JavaServer Pages and Microsoft
> Active Server Pages Technologies" article from the Java Web site -- see
> http://java.sun.com/products/jsp/jsp-asp.html.
>
> The article claims that Java provides superior performance over
> interpreted scripting languages. Of course, the article fails to mention
> that compiled servlets are byte code that also gets interpreted. So, is
> there any validity to this claim? Does JSP provide a noticeable
> performance increase over ASP?
>
> Memory management and exception handling are also cited as JSP
> advantages. This seems like a legitimate claim to me. Are there any
> former ASP developers on this mailing list that have run into problems
> stemming from misbehaving applications crashing servers because of
> memory mismanagement. Have any of you former ASP developers found
> yourself cursing ASP because it lacked exception handling?
>
> The article implies that JSP emphasizes components over scripting, which
> makes it easier to revise content without affecting logic and vice
> versa. However, it seems as though ASP is just as "componentized" as
> JSP; after all, ASP can use COM objects and JSP can use JavaBeans. Am I
> missing something here? Is JSP somehow more component worthy than ASP?
>
> Speaking of components, I would venture that COM objects are more
> plentiful and mature than JavaBeans, which would give ASP an advantage
> over JSP. Is this a valid assertion?
>
> As far as I understand, ASP does not provide a customizable tag
> mechanism as does JSP. Is that the case? Does anyone know if Microsoft
> plans to add such a feature to ASP in the future? I can see that a
> customizable tag mechanism would be beneficial, but how big of a deal is
> it? Does anyone care to comment on how they are using customizable tags,
> and how miserable life would be without it?
>
> Of course the biggest advantage of JSP over ASP cited by Sun is the fact
> that JSP is platform independent, and therefore more widely supported by
> Web server and application server vendors. However, there are companies
> that have developed plug-ins for servers other than Microsoft servers to
> run ASP. In light of that, how big of an advantage is JSP's platform
> independence?
>
> JSP is language specific but platform independent, whereas ASP is
> language independent and platform specific. Language independence is
> probably quite an advantage for companies with legacy systems, whereas
> platform independence seems to be somewhat of a dubious advantage
> because of the fact that software can be purchased to run ASP on non
> Microsoft's Web servers. Comments?
>
> Finally, I'd love to see a show of hands from former ASP developers that
> have moved over to JSP, with a short explanation of why you made the
> switch.
>
>
> david
>
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> FAQs on JSP can be found at:
> http://java.sun.com/products/jsp/faq.html
> http://www.esperanto.org.nz/jsp/jspfaq.html
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