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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216
Web アプリケーションの開発
5
private String tel;
@NotNull
@DateTimeFormat
(pattern = "yyyy/MM/dd")
❹
private Date dateOfBirth;
@NotNull
@Size
(min = 9, max = 256)
private String email;
//
・・・
}
❶
HTML フォームの入力フィールドと同じ構造のフォームクラスを作成する
❷
java.io.Serializable
インターフェイスを実装し、
serialVersionUID
フィールドを定義する。
Serializable
の
実装が必須なのはフォームオブジェクトをセッションスコープで管理する場合だが、使用するスコープに関係なく
Serializable
を実装しておくのが無難
❸
要件に合わせて入力チェックルールを指定する。入力チェックルールの指定方法については「5.7入 力 チ ェッ ク 」を
参照
❹
要件に合わせて数値や日時のフォーマットを指定する。フォーマットの指定方法については「5.5.7アノテーション
を使用したフォーマットの指定」を参照
フォームクラスを作成する際は、フォームクラスが「
HTML
フォームの入力フィールドを表現するためのクラ
スである」ということを忘れないでください。
HTML フォームとのバインディング
ここからは、
HTML
フォームとフォームオブジェクトのバインディングパターンについて、具体例を示しな
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