Springã«ãŠã„ã¦JPAã®Entityã‚’RESTã®JSONè¿”å´å€¤ã¨ã—ã¦ãã®ã¾ã¾ç”¨ã„ã‚‹éš›ã®æ³¨æ„点 - 今日å¦ã‚“ã ã“ã¨Spring Frameworkを使ã£ã¦REST APIを作りã¤ã¤ã€ãã®è¿”å´å€¤ã¨ã—ã¦JPAã®Entityを使ã„ã¾ã‚ãã†ã¨ã—ãŸã¨ã“ã‚エラーã«æ‚©ã¾ã•ã‚Œã€‚ãã®è§£æ±ºç–ã«ã¤ã„ã¦ã€æ—¥æœ¬èªžã§æ›¸ã‹ã‚Œã¦ã„ã‚‹æƒ…å ±ãŒãªã‹ã£ãŸã®ã§ã€ã“ã“ã«å…±æœ‰ã—ã¾ã™ã€‚ å•é¡ŒãŒç™ºç”Ÿã™ã‚‹æ¡ä»¶ JPAã®Entityã‚’è¿”å´å€¤ã¨ã—ã¦ç”¨ã„ã¦ã„ã‚‹ Entityã®ä¸ã§ãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚’定義ã—ã¦ã„ã‚‹ ãŒæ¡ä»¶ã¨ãªã‚Šã¾ã™ã€‚ ã©ã®ã‚ˆã†ãªå•é¡ŒãŒç™ºç”Ÿã™ã‚‹ã‹ JPAã§ãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚’è¨å®šã™ã‚‹éš›ã€è¦ªã‹ã‚‰åã¸ã®ãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã ã‘ã§ãªãã€åã‹ã‚‰è¦ªã¸ã®ãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚‚定義ã™ã‚‹å¿…è¦ãŒã‚ã‚Šã¾ã™ã€‚ 具体的ã«ã„ã†ã¨ /** 親テーブル */ @Entity @Table(name = "parent") public class Parent implements Serializable { @Id String id; String name; @OneToMany(mappedB
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