June 2001
Intermediate to advanced
888 pages
21h 1m
English
Content preview from Java Cookbook
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
Program: JabaDot Web News Portal
Here is perhaps the most ambitious program developed in this book. It’s the beginnings of a complete “news portal” web site, similar to http://www.slashdot.org, http://www.deadly.org, or http://daily.daemonnews.org. However (and as you should expect!), the entire site is written in Java. Or perhaps should I say “written in or by Java,” since the JSP mechanism -- which is written entirely in Java -- turns the JSP pages into Java servlets that get run on this site. The web site is shown in Figure 18-11.
Figure 18-11. JabaDot welcome page
Like most portal sites, JabaDot allows some services (such as the
current news items and of course the ubiquitous banner ads) without
logging in, but requires a login for others. In this figure I am
logged in as myself, so I have a list of all available services. The
page that supports this view is index.jsp (Example 18-15), which contains a hodgepodge of HTML and Java
code.
Example 18-15. index.jsp
<%@page errorPage="oops.jsp"%> <HTML> <TITLE>JabaDot - Java News For Ever(yone)</TITLE> <P ALIGN=CENTER><jsp:include page="/servlet/AdRotator" flush="true"/></P> <BODY BGCOLOR="#f0f0f0"> <% HttpSession sess = request.getSession(true); User user = (User)sess.getValue("jabadot.login"); %> <TABLE> <TD WIDTH=75% ALIGN="TOP"> <!-- Most of page, at left --> <IMG SRC="logo.gif" ALIGN="LEFT"></IMG> <BR CLEAR="ALL"> <jsp:include page="./news.jsp" ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.