Re: psql & java

The only thing I'd add to all of this is that applets can do your
client-side processing for you if you like... your applet needs
to open a URLConnection to a servlet on the webserver, and this
way you can communicate via SSL, plain ol' TCP/IP, object input/output
streams etc. But effectively the servlet you can think of like
a CGI application running on the server. JDBC can also take place
from the applet to the server, but there's issues between how IE's
VM and Netscape's VM instantiate JDBC driver's (IE does not, as
per usual, follow the standard).

Regards,
Joe

Guillaume Rousse wrote:
>
> Le mar, 18 avr 2000, Peter Mount a écrit :
> > On Tue, 18 Apr 2000, Frank Bax wrote:
> >
> > > I want to write a Java applet that retrieves/updates data in a psql
> > > database. I am running Apache and psql on a single OpenBSD server. I
> > > currently use PHP for dynamic pages; which has been fine up to now for
> > > presenting data, but I can see the day coming where some processing at the
> > > client side would be useful; so I want to take a closer look at java. I
> > > have been told by someone who knows little more than I do, that I need
> > > servlets to get at my data with java applets. When I go to the apache
> > > site, I see references to Jakarta, Tomcat, Java-Apache, JSERV and JSSI.
> >
> > Ok, I've not played with servlets (had no need) but here goes (and
> > someone correct me if I'm wrong):
> >
> > Java-Apache is the name of the project to integrate Java with Apache.
> >
> > JSERV is a web server that embeds java into web pages which is processed
> > on the server. This is not JavaScript, but similar to PHP or ASP.
> No. JServ is a servlet engine for Apache. It doesn't support JSP alone, and
> it's not compliant with last version of servlet API. Tomcat, a part of Jakarta
> project, is its successor : it's both a servlet (2.2 compliant) engine and a
> JSP (1.1) engine.
>
> > Not sure what JSSI is. I have heared of Jakarta & Tomcat, but thats all.
> It's Java Server-Side Include, the java equivalent of traditionnal SSI.
>
> > > But I couldn't find summaries that tell what these things are. Can someone
> > > tell me exactly which of the above components (and more?) I need to install
> > > to make this work? How do they fit together?
> You'll need PostgreSQL for storing the data, JDBC driver to access them, Tomcat
> to process your servlets and JSP pages, Apache eventually if you also have
> plain HTML, as Tomcat is stand-alone capable. I don't know for JSSI, but for
> accessing data, this already largely enough.
>
> --
> Guillaume Rousse
> Iremia - Université de la Réunion
>
> Sleep doesn't exists. Just lack of cafeine.

--
Joe Shevland
Principal Consultant
KPI Logistics Pty Ltd
http://www.kpi.com.au
mailto:shevlandj(at)kpi(dot)com(dot)au

"I'm not under the alkafluence of inkahol that some thinkle peep I am.
It's just the drunker I sit here the longer I get."