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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456
SpringSecurity
9
認 証 情 報（
UserDetails
）をコントローラのメソッドで受け取るときは、認証情報を受け取るための引数を宣
言し 、引 数 ア ノ テ ー ション として
@org.springframework.security.core.annotation.AuthenticationPrin
cipal
を指定します。
認証情報（UserDetails）を受け取るメソッドの作成例
【10】
@GetMapping
public String view(
@AuthenticationPrincipal AccountUserDetails userDetails, //
認証情報を受け取る
Model model) {
model.addAttribute(userDetails.getAccount());
return "profile";
}
エラーメッセージ
認証に失敗した場合、
Spring Security
が用意しているエラーメッセージが表示されます。このエラーメッ
セージは内容を変更したり、表示しないようにすることができます。
■エラーメッセージの変更
認証失敗時に表示されるエラーメッセージを変更したい場合は、
MessageSource
で読み込んでいるプロパ
ティファイルに
Spring Security
が用意しているメッセージの定義を追加してください。
メッセージの定義例（messages.properties）
AbstractUserDetailsAuthenticationProvider.badCredentials ...
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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.