April 2001
Intermediate to advanced
432 pages
13h 2m
English
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Using Java with Oracle Web Applications
Java provides an alternative approach to Perl for enabling web communication with an Oracle database. In this section, we’ll provide a rough outline of using Java for web applications. Refer to Chapter 7 and Chapter 8 for much more detail about Java and its use with Oracle.
Java has its own version of an
embedded
HTML language, aptly called JavaServer Pages (JSP), and its
.jsp pages are analogous to
Microsoft’s
.asp Active Server Pages. Using JSP, you add
code to an HTML template page, rather than write a script that
generates an HTML page, as is the case with Perl. The Java approach
is similar to that of other embedded scripting languages such as PHP,
which we’ll describe later in this chapter. In addition to
accessing pure Java, a web page can also access precompiled Java
Beans, which facilitates component-based code and interoperability
and allows you to encapsulate functionality outside the page.
JavaServer Pages and Java Servlets
JavaServer Pages, like the various embedded scripting technologies discussed later in the chapter, allow you to embed code in your HTML pages. The code is preprocessed, and a complete HTML page is then returned by the web server.
Java servlets are bits of code which run on the server machine and are invoked by the web server. Java servlets are an alternative to JSPs. They operate in much the same way that other CGI programs do. But to make Java servlets work, you need a special module—namely, JServ for Apache, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.