May 2024
Intermediate to advanced
752 pages
24h
Japanese
Content preview from Spring徹底入門 第2版 Spring FrameworkによるJavaアプリケーション開発
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432
SpringSecurity
9
9.4
認証処理の適用
認証処理は、アプリケーションを利用するユーザーの正当性を確認するための処理です。最も標準的な方法
は、アプリケーションを使用できるユーザーをデータストアに登録しておいて、利用者が入力した認証情報
（ユーザー名とパスワードなど）と照合する方法です。利用者に認証情報を入力してもらう方式もいくつかあり、
HTML
の入力フォームを使う方式や
RFC
で定められている
HTTP
標準の認証方式（
Basic
認証や
Digest
認証
など）を利用するのが一般的ですが、
OpenID
認証やシングルサインオン認証などの認証方式を利用するケー
スもあります 。
本節では、
HTML
の入力フォームで入力した認証情報とリレーショナルデータベースに格納されているユー
ザー情報を照合して認証処理を行なう実装例を紹介しながら、
Spring Security
の認証機能を解説していきます。
認証処理の仕組み
まず、
Spring Security
が提供する認証処理の仕組みを理解しましょう。
Spring Security
は、以下のような流れ
で認証処理を行ないます（
図9.3）。
Authentication
Filter
spring-security-corespring-security-web
実装
認証方式の
実装を提供
認証方式の
実装を提供
❸
実装
<interface>
Authentication
Manager
<interface>
Authentication
Provider
Provider
Manager ...
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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.