Skip to Content
Java EE 6. Leksykon kieszonkowy
book

Java EE 6. Leksykon kieszonkowy

by Arun Gupta
March 2013
Intermediate to advanced
184 pages
4h 16m
Polish
Helion
Content preview from Java EE 6. Leksykon kieszonkowy

Serwlety

Do definiowania serwletów służy adnotacja @WebServlet stosowana dla obiektów POJO. Każdy serwlet musi dodatkowo rozszerzać klasę javax.servlet.http.HttpServlet.

Przykładową definicję serwletu pokazano poniżej:

@WebServlet("/account")
public class AccountServlet
  extends javax.servlet.http.HttpServlet {
  // ...
}

Domyślną nazwą serwletu jest pełna nazwa jego klasy; domyślną nazwę można jednak nadpisać za pomocą atrybutu name adnotacji @WebServlet. Jeden serwlet można wdrożyć pod wieloma adresami URL:

@WebServlet(urlPatterns={"/account", "/accountServlet"})
public class AccountServlet
  extends javax.servlet.http.HttpServlet {
  // ...
}

Do określenia parametru inicjalizacji można użyć adnotacji @WebInitParam:

@WebServlet(urlPatterns="/account", ...
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

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’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.
Head of Cybersecurity
QuotationMarkI 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.
Field Engineer
QuotationMarkI’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.
Data Platform Tech Lead
QuotationMarkI'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.
Mark W.
Embedded Software Engineer

You might also like

Java 8. Leksykon kieszonkowy

Java 8. Leksykon kieszonkowy

Robert Liguori, Patricia Liguori
GitHub. Przyjazny przewodnik

GitHub. Przyjazny przewodnik

Peter Bell, Brent Beer

Publisher Resources

ISBN: 9781457178252