{"id":8884,"date":"2024-03-15T01:45:30","date_gmt":"2024-03-14T16:45:30","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/jpa%e3%83%95%e3%83%ac%e3%83%bc%e3%83%a0%e3%83%af%e3%83%bc%e3%82%af%e3%81%ae%e3%82%a4%e3%83%b3%e3%82%b9%e3%83%88%e3%83%bc%e3%83%ab%e3%81%a8%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%81%af%e3%81%a9\/"},"modified":"2025-08-03T22:37:06","modified_gmt":"2025-08-03T13:37:06","slug":"jpa%e3%83%95%e3%83%ac%e3%83%bc%e3%83%a0%e3%83%af%e3%83%bc%e3%82%af%e3%81%ae%e3%82%a4%e3%83%b3%e3%82%b9%e3%83%88%e3%83%bc%e3%83%ab%e3%81%a8%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%81%af%e3%81%a9","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/jpa%e3%83%95%e3%83%ac%e3%83%bc%e3%83%a0%e3%83%af%e3%83%bc%e3%82%af%e3%81%ae%e3%82%a4%e3%83%b3%e3%82%b9%e3%83%88%e3%83%bc%e3%83%ab%e3%81%a8%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%81%af%e3%81%a9\/","title":{"rendered":"JPA\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af 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&lt;version&gt;5.4.18.Final&lt;\/version&gt;\r\n&lt;\/dependency&gt;\r\n&lt;dependency&gt;\r\n    &lt;groupId&gt;javax.persistence&lt;\/groupId&gt;\r\n    &lt;artifactId&gt;javax.persistence-api&lt;\/artifactId&gt;\r\n    &lt;version&gt;2.2&lt;\/version&gt;\r\n&lt;\/dependency&gt;\r\n<\/code><\/pre>\n<p>2\u3001\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u3092\u8a2d\u5b9a\u3059\u308b\uff1a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\uff08\u305f\u3068\u3048\u3070application.properties\u307e\u305f\u306fapplication.yml\uff09\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u60c5\u5831\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code class=\"lang-properties\">spring.datasource.url=jdbc:mysql:\/\/localhost:3306\/mydatabase\r\nspring.datasource.username=root\r\nspring.datasource.password=password\r\nspring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver\r\n<\/code><\/pre>\n<p>3\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u306e\u4f5c\u6210\uff1a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c6\u30fc\u30d6\u30eb\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u5fc5\u8981\u306e\u3042\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3057\u3001JPA\u6ce8\u91c8\u3092\u4f7f\u7528\u3057\u3066\u30de\u30fc\u30af\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001<\/p>\n<pre class=\"post-pre\"><code class=\"lang-java\">@Entity\r\n@Table(name = \"user\")\r\npublic class User {\r\n    @Id\r\n    @GeneratedValue(strategy = GenerationType.IDENTITY)\r\n    private Long id;\r\n    private String username;\r\n    private String password;\r\n    \/\/ getters and setters\r\n}\r\n<\/code><\/pre>\n<p>4\u3001Repository\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\uff1a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306bJpaRepository\u3092\u7d99\u627f\u3057\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001<\/p>\n<pre class=\"post-pre\"><code class=\"lang-java\">@Repository\r\npublic interface UserRepository extends JpaRepository&lt;User, Long&gt; {\r\n}\r\n<\/code><\/pre>\n<p>5\u3001JPA\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u3092\u884c\u3044\u307e\u3059\uff1a\u30b5\u30fc\u30d3\u30b9\u30af\u30e9\u30b9\u3084\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306bRepository\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u30a4\u30f3\u30b8\u30a7\u30af\u30c8\u3057\u3001\u305d\u306e\u4e2d\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u3092\u884c\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001<\/p>\n<pre class=\"post-pre\"><code class=\"lang-java\">@Service\r\npublic class UserService {\r\n    @Autowired\r\n    private UserRepository userRepository;\r\n\r\n    public User getUserById(Long id) {\r\n        return userRepository.findById(id).orElse(null);\r\n    }\r\n\r\n    public void saveUser(User user) {\r\n        userRepository.save(user);\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>6\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3057\u307e\u3059\uff1a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u8d77\u52d5\u3057\u3001JPA\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u3084Repository\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u306e\u5b9a\u7fa9\u306b\u57fa\u3065\u3044\u3066\u81ea\u52d5\u7684\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c6\u30fc\u30d6\u30eb\u3084\u5bfe\u5fdc\u3059\u308bSQL\u6587\u3092\u751f\u6210\u3057\u307e\u3059\u3002Repository\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8ffd\u52a0\u3001\u524a\u9664\u3001\u66f4\u65b0\u3001\u691c\u7d22\u64cd\u4f5c\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0a\u304cJPA\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u57fa\u672c\u7684\u306a\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u4f7f\u7528\u624b\u9806\u3067\u3059\u3002\u304a\u5f79\u306b\u7acb\u3066\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>JPA\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304a\u3088\u3073\u4f7f\u7528\u624b\u9806\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\uff1a JPA\u4f9d\u5b58\u95a2\u4fc2\u306e\u8ffd\u52a0\uff1a\u6700\u521d\u306b\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306epom.xml\u30d5\u30a1\u30a4\u30eb\u306bJPA\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001Hibernate\u3092\u4f7f\u7528\u3057\u3066JPA [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[42,1020,475,17,476,94],"class_list":["post-8884","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-java","tag-jpa","tag-orm","tag-17","tag-476","tag-94"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>JPA\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af 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content=\"article\" \/>\n<meta property=\"og:title\" content=\"JPA\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af \u5c0e\u5165\u3068\u4f7f\u3044\u65b9\u306e\u57fa\u672c\u3010\u521d\u5fc3\u8005\u5411\u3051\u3011\" \/>\n<meta property=\"og:description\" content=\"JPA\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u5c0e\u5165\u304b\u3089\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u307e\u3067\u3092\u89e3\u8aac\u3002\u521d\u5fc3\u8005\u3067\u3082\u8ff7\u308f\u305a\u8a2d\u5b9a\u3067\u304d\u308b\u3088\u3046\u3001\u624b\u9806\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3057\u307e\u3059\u3002Java ORM\u306e\u57fa\u672c\u3092\u7fd2\u5f97\u3057\u307e\u3057\u3087\u3046\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/jpa\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u4f7f\u7528\u65b9\u6cd5\u306f\u3069\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta 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