RE: Servlet question, WAS 3.5.2

It is not necessarily incorrect to override the service() method. It
depends on how you plan on the servlet being invoked. If the servlet will
only be invoked as the result of a
 <FORM METHOD="post" ACTION=.../> or <FORM METHOD="get" ACTION=.../>, etc.
tag, then you should not override service() and you should implement doGet
and doPost.

However, if your servlet will be invoked from a JSP using forward, or if
you will invoke the servlet directly from an HTML tag such as <a href
="http://as400service.ibm.com/servlet/EstimatorServlet">Workload
Estimator</a>, you will need to implement the service() method.

There are two classes, GenericServlet and HttpServlet.  HttpServlet extends
GenericServlet and adds the doXXX methods which add functionality for
invoking the servlet from an HTML page. The Javadoc for both classes can be
seen at http://java.sun.com:80/products/servlet/2.3/javadoc/index.html.

If you are finding bugs in the samples (quirkiness is a trait most of us
have), you should report them to IBM Service or if that is not an option,
feel free to send me a note on specific bugs. Please include the minimum
steps to recreate the bug and a description of the bug.

Thanks,
Frances Stewart
WebSphere Application Server for iSeries 400
IBM Rochester


"Stone, Brad V (TC)" <bvstone@taylorcorp.com>@midrange.com on 02/08/2001
07:14:44 AM

Please respond to JAVA400-L@midrange.com

Sent by:  owner-java400-l@midrange.com


To:   "'JAVA400-L@midrange.com'" <JAVA400-L@midrange.com>
cc:
Subject:  RE: Servlet question, WAS 3.5.2



You shouldn;t?  Hmmm.. I knew these examples I get from IBM are quirky and
buggy, but I didn't know they were doing things you shouldn't do...

PFffttt...

Thanks for your help, Joe.

Brad

> -----Original Message-----
> From: Joe Teff [mailto:JoeTeff@earthlink.net]
> Sent: Wednesday, February 07, 2001 10:56 PM
> To: JAVA400-L@midrange.com
> Subject: RE: Servlet question, WAS 3.5.2
>
>
> You shouldn't override the service() method. It is the actual
> method called by the server and then it in turn calls the
> appropriate method for the request (i.e. doGet(), doPost(),
> doHead(), DoDelete(), etc.). What I usually do is put my code
> in the doGet() and then call it from my doPost() so I have
> them both covered.
>
>    public void doGet(HttpServletRequest req,
> HttpServletResponse res) {
>       ... my code ...
>    }
>
>    public void doPost(HttpServletRequest req,
> HttpServletResponse res) {
>       doGet(req, res);
>    }
>
> Joe Teff
>
> -----Original Message-----
> From: owner-java400-l@midrange.com
> [mailto:owner-java400-l@midrange.com]On Behalf Of Stone, Brad V (TC)
> Sent: Wednesday, February 07, 2001 3:54 PM
> To: 'JAVA400-L@midrange.com'
> Subject: RE: Servlet question, WAS 3.5.2
>
>
> Nevermind... dummy me was using doGet instead of service on a POST.
>
> > -----Original Message-----
> > From: tmalin@hannasteel.com [mailto:tmalin@hannasteel.com]
> > Sent: Wednesday, February 07, 2001 3:14 PM
> > To: JAVA400-L@midrange.com
> > Subject: Re: Servlet question, WAS 3.5.2
> >
> >
> >
> > I am assuming you are using the default server. Did you check the
> > stderr.log in the logs folder.
> >
> >
> > Tom
> >
> >
> >
> >
> > +---
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