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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6.5 例外ハンドリング
ex.getBindingResult().getGlobalErrors().stream()
.forEach(e -> apiError.addDetail(e.getObjectName(), getMessage(e, request)));
ex.getBindingResult().getFieldErrors().stream()
.forEach(e -> apiError.addDetail(e.getField(), getMessage(e, request)));
return super.handleExceptionInternal(
ex, apiError, headers, status, request);
}
private String getMessage(MessageSourceResolvable resolvable, WebRequest request){
return messageSource.getMessage(resolvable, request.getLocale());
}
❶
エラーメッセージを取得するためのコンポーネント（
MessageSource
）を DI する
❷
ResponseEntityExceptionHandler
の
handleMethodArgumentNotValid
メソッ
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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.