November 2002
Intermediate to advanced
544 pages
11h 10m
English
book
Sun™ Certification Training Guide (310-080): Java™ 2 Enterprise Edition (J2EE™) Web Component Developer Exam
by Alain Trottier
Content preview from Sun™ Certification Training Guide (310-080): Java™ 2 Enterprise Edition (J2EE™) Web Component Developer ExamBecome 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,
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Chapter 5. Servlet Exceptions
OBJECTIVES
Servicing requests from users on the Web means you will sometimes receive bad information. Also, you may make a mistake in your code. How do you handle these conditions in servlets? This chapter discusses error and exception handling.
There are two categories of problems you will face. One is from Java itself and your code. For example, you may try to write a note to the log file, but that file is locked at the moment so the write attempt fails. That will throw an exception. The other category regards the user's request, where you might get a corrupt or incomplete request. These error codes that you will work with are based on the Hypertext Transfer Protocol (HTTP).
The main focus of this chapter is servlet ...
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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.