{"id":1169,"date":"2025-03-24T08:52:42","date_gmt":"2025-03-23T23:52:42","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1169"},"modified":"2025-03-24T08:52:42","modified_gmt":"2025-03-23T23:52:42","slug":"%e3%80%90%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91hibernate%e3%82%92%e5%ae%8c%e5%85%a8%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%ef%bc%81%e5%8a%b9%e7%8e%87%e7%9a%84%e3%81%aa%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1169","title":{"rendered":"\u3010\u4fdd\u5b58\u7248\u3011Hibernate\u3092\u5b8c\u5168\u30de\u30b9\u30bf\u30fc\uff01\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u30687\u3064\u306e\u5b9f\u88c5\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9 2024"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">Hibernate \u3068\u306f\uff1f\u73fe\u4ee3\u306e Java \u958b\u767a\u306b\u5fc5\u8981\u306a O\/R \u30de\u30c3\u30d4\u30f3\u30b0\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">Hibernate\u304c\u89e3\u6c7a\u3059\u308b3\u3064\u306e\u958b\u767a\u8ab2\u984c<\/a>      <\/li>      <li>        <a href=\"#i-2\">\u5f93\u6765\u306eJDBC\u3068\u306e\u6c7a\u5b9a\u7684\u306a\u9055\u3044<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">Spring Framework\u3068Hibernate\u306e\u4e92\u63db\u6027<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">Hibernate\u5c0e\u5165\u304b\u3089\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u307e\u3067<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">Maven\/Gradle\u3067\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-8\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u306e\u4f5c\u6210\u3068\u57fa\u672c\u7684\u306a\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-9\">\u30bb\u30c3\u30b7\u30e7\u30f3\u30d5\u30a1\u30af\u30c8\u30ea\u3068\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u306e\u57fa\u790e<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-12\">7\u3064\u306e\u5b9f\u88c5\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-13\">1. \u9069\u5207\u306a\u30d5\u30a7\u30c3\u30c1\u6226\u7565\u306e\u9078\u629e\u3067N+1\u554f\u984c\u3092\u89e3\u6c7a<\/a>      <\/li>      <li>        <a href=\"#i-14\">2. \u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565\u306e\u6700\u9069\u5316\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a<\/a>      <\/li>      <li>        <a href=\"#i-15\">3. \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u88c5\u3067\u5927\u91cf\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406<\/a>      <\/li>      <li>        <a href=\"#i-16\">4. \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u306e\u9069\u5207\u306a\u5b9f\u88c5<\/a>      <\/li>      <li>        <a href=\"#i-17\">5. \u547d\u540d\u6226\u7565\u3068\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li>        <a href=\"#i-18\">6. \u76e3\u67fb\u30ed\u30b0\u3068\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u306e\u5b9f\u88c5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">7. \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\uff1aSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u9632\u6b62\u3068\u30c7\u30fc\u30bf\u691c\u8a3c<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-20\">Hibernate\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u5b9f\u8df5\u30ac\u30a4\u30c9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first last\">        <a href=\"#i-21\">\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-26\">Hibernate\u3067\u3088\u304f\u3042\u308b\u30c8\u30e9\u30d6\u30eb\u3068\u89e3\u6c7a\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-27\">LazyInitializationException\u306e\u5bfe\u51e6\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-30\">\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u767a\u751f\u6642\u306e\u5bfe\u5fdc\u7b56<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-32\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u9632\u6b62\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-35\">Hibernate6\u306e\u65b0\u6a5f\u80fd\u3068\u5c06\u6765\u306e\u5c55\u671b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-36\">\u30d0\u30fc\u30b8\u30e7\u30f35\u304b\u3089\u306e\u4e3b\u8981\u306a\u5909\u66f4\u70b9<\/a>      <\/li>      <li>        <a href=\"#i-39\">\u65b0\u3057\u3044API\u3068\u6539\u5584\u3055\u308c\u305f\u6a5f\u80fd<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-42\">\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u306e\u6d3b\u7528\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">Hibernate \u3068\u306f\uff1f\u73fe\u4ee3\u306e Java \u958b\u767a\u306b\u5fc5\u8981\u306a O\/R \u30de\u30c3\u30d4\u30f3\u30b0\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af<\/h2>\n\n\n\n<p>Hibernate\u306f\u3001Java\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068RDBMS\uff08\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\uff09\u306e\u9593\u306e\u6a4b\u6e21\u3057\u3092\u884c\u3046\u3001\u6700\u3082\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308bO\/R\u30de\u30c3\u30d4\u30f3\u30b0\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u306e\u3084\u308a\u53d6\u308a\u3092\u52b9\u7387\u5316\u3057\u3001\u958b\u767a\u8005\u304c\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306b\u96c6\u4e2d\u3067\u304d\u308b\u74b0\u5883\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">Hibernate\u304c\u89e3\u6c7a\u3059\u308b3\u3064\u306e\u958b\u767a\u8ab2\u984c<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u4e0d\u4e00\u81f4<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u7d99\u627f\u95a2\u4fc2\u3092\u30c6\u30fc\u30d6\u30eb\u8a2d\u8a08\u306b\u53cd\u6620<\/li>\n\n\n\n<li>\u8907\u96d1\u306a\u95a2\u9023\uff08One-to-Many\u3001Many-to-Many\uff09\u306e\u81ea\u52d5\u30de\u30c3\u30d4\u30f3\u30b0<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u578b\u306e\u81ea\u52d5\u5909\u63db\u306b\u3088\u308b\u578b\u306e\u4e0d\u4e00\u81f4\u89e3\u6d88<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>SQL\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u7169\u96d1\u3055<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HQL\u306b\u3088\u308b\u76f4\u611f\u7684\u306a\u30af\u30a8\u30ea\u8a18\u8ff0<\/li>\n\n\n\n<li>CRUD\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u81ea\u52d5\u751f\u6210<\/li>\n\n\n\n<li>\u52d5\u7684\u30af\u30a8\u30ea\u306e\u30d3\u30eb\u30c9\u3092\u7c21\u7d20\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u56fa\u6709\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u6a5f\u80fd\u306b\u3088\u308b\u6027\u80fd\u5411\u4e0a<\/li>\n\n\n\n<li>\u30d0\u30c3\u30c1\u51e6\u7406\u306e\u52b9\u7387\u5316<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u975e\u4f9d\u5b58\u306eSQL\u751f\u6210<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u5f93\u6765\u306eJDBC\u3068\u306e\u6c7a\u5b9a\u7684\u306a\u9055\u3044<\/h3>\n\n\n<div id=\"id-966a6973-e061-46c5-a92d-0375b0e8dac0\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u89b3\u70b9<\/th><th>JDBC<\/th><th>Hibernate<\/th><\/tr><\/thead><tbody><tr><td>\u30b3\u30fc\u30c9\u91cf<\/td><td>\u591a\u3044\uff08SQL\u306e\u624b\u52d5\u8a18\u8ff0\u304c\u5fc5\u8981\uff09<\/td><td>\u5c11\u306a\u3044\uff08\u81ea\u52d5\u751f\u6210\uff09<\/td><\/tr><tr><td>\u4fdd\u5b88\u6027<\/td><td>\u4f4e\u3044\uff08SQL\u6587\u306e\u4fee\u6b63\u304c\u5fc5\u8981\uff09<\/td><td>\u9ad8\u3044\uff08\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u30d9\u30fc\u30b9\uff09<\/td><\/tr><tr><td>\u5b66\u7fd2\u66f2\u7dda<\/td><td>\u306a\u3060\u3089\u304b<\/td><td>\u3084\u3084\u6025\uff08\u8a2d\u5b9a\u306e\u7406\u89e3\u304c\u5fc5\u8981\uff09<\/td><\/tr><tr><td>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/td><td>\u624b\u52d5\u6700\u9069\u5316\u304c\u5fc5\u8981<\/td><td>\u81ea\u52d5\u6700\u9069\u5316\u6a5f\u80fd\u3042\u308a<\/td><\/tr><tr><td>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u79fb\u884c<\/td><td>\u56f0\u96e3\uff08SQL\u66f8\u304d\u63db\u3048\u304c\u5fc5\u8981\uff09<\/td><td>\u5bb9\u6613\uff08\u65b9\u8a00\u306e\u8a2d\u5b9a\u306e\u307f\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">Spring Framework\u3068Hibernate\u306e\u4e92\u63db\u6027<\/h3>\n\n\n\n<p>Spring Framework\u3068Hibernate\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u3067\u512a\u308c\u305f\u4e92\u63db\u6027\u3092\u6301\u3063\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7d71\u5408\u3055\u308c\u305f\u8a2d\u5b9a\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   @Configuration\n   @EnableTransactionManagement\n   public class HibernateConfig {\n       @Bean\n       public LocalSessionFactoryBean sessionFactory() {\n           LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();\n           sessionFactory.setDataSource(dataSource());\n           sessionFactory.setPackagesToScan(\"com.example.model\");\n           sessionFactory.setHibernateProperties(hibernateProperties());\n           return sessionFactory;\n       }\n   }<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u306e\u7c21\u7d20\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   @Service\n   @Transactional\n   public class UserService {\n       @Autowired\n       private SessionFactory sessionFactory;\n\n       public User findById(Long id) {\n           return sessionFactory.getCurrentSession()\n                   .get(User.class, id);\n       }\n   }<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>SpringDataJPA\u3068\u306e\u9023\u643a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ea\u30dd\u30b8\u30c8\u30ea\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\u304c\u5bb9\u6613<\/li>\n\n\n\n<li>CRUD\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u81ea\u52d5\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30ab\u30b9\u30bf\u30e0\u30af\u30a8\u30ea\u306e\u67d4\u8edf\u306a\u5b9a\u7fa9<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0a\u306e\u7279\u5fb4\u306b\u3088\u308a\u3001Hibernate\u306f\u73fe\u4ee3\u306eJava\u958b\u767a\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u306a\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u3001Spring Framework\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u308a\u3001\u5805\u7262\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">Hibernate\u5c0e\u5165\u304b\u3089\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u307e\u3067<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">Maven\/Gradle\u3067\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-6\">Maven\u306e\u5834\u5408<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;dependencies&gt;\n    &lt;!-- Hibernate Core --&gt;\n    &lt;dependency&gt;\n        &lt;groupId&gt;org.hibernate&lt;\/groupId&gt;\n        &lt;artifactId&gt;hibernate-core&lt;\/artifactId&gt;\n        &lt;version&gt;6.4.1.Final&lt;\/version&gt;\n    &lt;\/dependency&gt;\n\n    &lt;!-- Database Driver (PostgreSQL\u306e\u4f8b) --&gt;\n    &lt;dependency&gt;\n        &lt;groupId&gt;org.postgresql&lt;\/groupId&gt;\n        &lt;artifactId&gt;postgresql&lt;\/artifactId&gt;\n        &lt;version&gt;42.7.1&lt;\/version&gt;\n    &lt;\/dependency&gt;\n&lt;\/dependencies&gt;<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-7\">Gradle\u306e\u5834\u5408<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">dependencies {\n    \/\/ Hibernate Core\n    implementation 'org.hibernate:hibernate-core:6.4.1.Final'\n\n    \/\/ Database Driver (PostgreSQL\u306e\u4f8b)\n    implementation 'org.postgresql:postgresql:42.7.1'\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u306e\u4f5c\u6210\u3068\u57fa\u672c\u7684\u306a\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3<\/h3>\n\n\n\n<p>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c6\u30fc\u30d6\u30eb\u3068\u30de\u30c3\u30d4\u30f3\u30b0\u3055\u308c\u308bJava\u30af\u30e9\u30b9\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u4f8b\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">import jakarta.persistence.*;\nimport java.time.LocalDateTime;\n\n@Entity\n@Table(name = \"users\")\npublic class User {\n    @Id\n    @GeneratedValue(strategy = GenerationType.IDENTITY)\n    private Long id;\n\n    @Column(name = \"username\", nullable = false, length = 50)\n    private String username;\n\n    @Column(name = \"email\", unique = true)\n    private String email;\n\n    @Column(name = \"created_at\")\n    private LocalDateTime createdAt;\n\n    \/\/ \u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u306e\u4f8b\n    @OneToMany(mappedBy = \"user\", cascade = CascadeType.ALL)\n    private List&lt;Order&gt; orders = new ArrayList&lt;&gt;();\n\n    \/\/ Getter\/Setter\u30e1\u30bd\u30c3\u30c9\uff08\u7701\u7565\uff09\n}<\/pre>\n\n\n\n<p>\u4e3b\u8981\u306a\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u8aac\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>@Entity<\/code>: \u30af\u30e9\u30b9\u304c\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059<\/li>\n\n\n\n<li><code>@Table<\/code>: \u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u3092\u6307\u5b9a<\/li>\n\n\n\n<li><code>@Id<\/code>: \u4e3b\u30ad\u30fc\u3092\u6307\u5b9a<\/li>\n\n\n\n<li><code>@GeneratedValue<\/code>: \u4e3b\u30ad\u30fc\u306e\u751f\u6210\u6226\u7565\u3092\u6307\u5b9a<\/li>\n\n\n\n<li><code>@Column<\/code>: \u30ab\u30e9\u30e0\u306e\u8a73\u7d30\u8a2d\u5b9a<\/li>\n\n\n\n<li><code>@OneToMany<\/code>: 1\u5bfe\u591a\u306e\u95a2\u9023\u3092\u5b9a\u7fa9<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u30bb\u30c3\u30b7\u30e7\u30f3\u30d5\u30a1\u30af\u30c8\u30ea\u3068\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u306e\u57fa\u790e<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-10\">\u30bb\u30c3\u30b7\u30e7\u30f3\u30d5\u30a1\u30af\u30c8\u30ea\u306e\u8a2d\u5b9a<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class HibernateUtil {\n    private static StandardServiceRegistry registry;\n    private static SessionFactory sessionFactory;\n\n    public static SessionFactory getSessionFactory() {\n        if (sessionFactory == null) {\n            try {\n                \/\/ \u8a2d\u5b9a\u306e\u4f5c\u6210\n                Configuration configuration = new Configuration();\n\n                \/\/ \u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u8a2d\u5b9a\n                Properties settings = new Properties();\n                settings.put(Environment.DRIVER, \"org.postgresql.Driver\");\n                settings.put(Environment.URL, \"jdbc:postgresql:\/\/localhost:5432\/mydb\");\n                settings.put(Environment.USER, \"postgres\");\n                settings.put(Environment.PASS, \"password\");\n                settings.put(Environment.DIALECT, \"org.hibernate.dialect.PostgreSQLDialect\");\n                settings.put(Environment.SHOW_SQL, \"true\");\n                settings.put(Environment.HBM2DDL_AUTO, \"update\");\n\n                configuration.setProperties(settings);\n                configuration.addAnnotatedClass(User.class);\n\n                \/\/ \u30bb\u30c3\u30b7\u30e7\u30f3\u30d5\u30a1\u30af\u30c8\u30ea\u306e\u69cb\u7bc9\n                registry = new StandardServiceRegistryBuilder()\n                        .applySettings(configuration.getProperties())\n                        .build();\n                sessionFactory = configuration.buildSessionFactory(registry);\n\n            } catch (Exception e) {\n                if (registry != null) {\n                    StandardServiceRegistryBuilder.destroy(registry);\n                }\n                throw new RuntimeException(\"\u30bb\u30c3\u30b7\u30e7\u30f3\u30d5\u30a1\u30af\u30c8\u30ea\u306e\u521d\u671f\u5316\u306b\u5931\u6557\u3057\u307e\u3057\u305f\", e);\n            }\n        }\n        return sessionFactory;\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-11\">\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class UserRepository {\n    \/\/ \u30e6\u30fc\u30b6\u30fc\u306e\u4fdd\u5b58\n    public void saveUser(User user) {\n        try (Session session = HibernateUtil.getSessionFactory().openSession()) {\n            Transaction transaction = session.beginTransaction();\n            try {\n                session.persist(user);\n                transaction.commit();\n            } catch (Exception e) {\n                transaction.rollback();\n                throw e;\n            }\n        }\n    }\n\n    \/\/ \u30e6\u30fc\u30b6\u30fc\u306e\u53d6\u5f97\n    public User getUser(Long id) {\n        try (Session session = HibernateUtil.getSessionFactory().openSession()) {\n            return session.get(User.class, id);\n        }\n    }\n\n    \/\/ \u30af\u30a8\u30ea\u306e\u4f8b\n    public List&lt;User&gt; findUsersByEmail(String email) {\n        try (Session session = HibernateUtil.getSessionFactory().openSession()) {\n            return session.createQuery(\n                \"from User where email = :email\", User.class)\n                .setParameter(\"email\", email)\n                .getResultList();\n        }\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u4ee5\u4e0b\u306e\u91cd\u8981\u306a\u6982\u5ff5\u3092\u793a\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30bb\u30c3\u30b7\u30e7\u30f3\u30d5\u30a1\u30af\u30c8\u30ea\u306e\u9069\u5207\u306a\u521d\u671f\u5316<\/li>\n\n\n\n<li>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u306e\u57fa\u672c\u30d1\u30bf\u30fc\u30f3<\/li>\n\n\n\n<li>\u30ea\u30bd\u30fc\u30b9\u306e\u9069\u5207\u306a\u30af\u30ed\u30fc\u30ba\uff08try-with-resources\uff09<\/li>\n\n\n\n<li>\u57fa\u672c\u7684\u306aCRUD\u64cd\u4f5c\u306e\u5b9f\u88c5\u65b9\u6cd5<\/li>\n\n\n\n<li>HQL\u3092\u4f7f\u7528\u3057\u305f\u30af\u30a8\u30ea\u306e\u5b9f\u884c\u65b9\u6cd5<\/li>\n<\/ol>\n\n\n\n<p>\u4ee5\u4e0a\u306e\u5b9f\u88c5\u306b\u3088\u308a\u3001Hibernate\u3092\u4f7f\u7528\u3057\u305f\u57fa\u672c\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-12\">7\u3064\u306e\u5b9f\u88c5\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">1. \u9069\u5207\u306a\u30d5\u30a7\u30c3\u30c1\u6226\u7565\u306e\u9078\u629e\u3067N+1\u554f\u984c\u3092\u89e3\u6c7a<\/h3>\n\n\n\n<p>N+1\u554f\u984c\u306f\u3001\u95a2\u9023\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u53d6\u5f97\u3059\u308b\u969b\u306b\u767a\u751f\u3059\u308b\u8ffd\u52a0\u30af\u30a8\u30ea\u306e\u554f\u984c\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u5bfe\u7b56\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u53d6\u5f97\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u60aa\u3044\u4f8b\uff1aN+1\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u5b9f\u88c5\n@Entity\npublic class Department {\n    @OneToMany(mappedBy = \"department\")\n    private List&lt;Employee&gt; employees;  \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u3067LAZY\n}\n\n\/\/ \u826f\u3044\u4f8b\uff1aJOIN FETCH\u3092\u4f7f\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u5b9f\u88c5\n@Repository\npublic class DepartmentRepository {\n    public List&lt;Department&gt; findAllWithEmployees() {\n        return session.createQuery(\n            \"SELECT DISTINCT d FROM Department d \" +\n            \"LEFT JOIN FETCH d.employees\", Department.class)\n            .getResultList();\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">2. \u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565\u306e\u6700\u9069\u5316\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a<\/h3>\n\n\n\n<p>Hibernate\u306e\u4e8c\u6b21\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Entity\n@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)\npublic class Product {\n    @Id\n    private Long id;\n\n    @Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)\n    @ManyToMany\n    private Set&lt;Category&gt; categories;\n}\n\n\/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u8a2d\u5b9a\uff08hibernate.cfg.xml\uff09\n&lt;property name=\"hibernate.cache.use_second_level_cache\"&gt;true&lt;\/property&gt;\n&lt;property name=\"hibernate.cache.region.factory_class\"&gt;\n    org.hibernate.cache.ehcache.EhCacheRegionFactory\n&lt;\/property&gt;<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">3. \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u88c5\u3067\u5927\u91cf\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406<\/h3>\n\n\n\n<p>\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u6271\u3046\u969b\u306f\u3001\u30d0\u30c3\u30c1\u51e6\u7406\u3092\u6d3b\u7528\u3057\u3066\u52b9\u7387\u5316\u3092\u56f3\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Service\n@Transactional\npublic class BulkOperationService {\n    private static final int BATCH_SIZE = 50;\n\n    @Autowired\n    private Session session;\n\n    public void bulkInsert(List&lt;Entity&gt; entities) {\n        for (int i = 0; i &lt; entities.size(); i++) {\n            session.persist(entities.get(i));\n\n            \/\/ \u30d0\u30c3\u30c1\u30b5\u30a4\u30ba\u3054\u3068\u306b\u30d5\u30e9\u30c3\u30b7\u30e5\u3068\u30af\u30ea\u30a2\n            if (i % BATCH_SIZE == 0) {\n                session.flush();\n                session.clear();\n            }\n        }\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">4. \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u306e\u9069\u5207\u306a\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u4fdd\u3064\u4e0a\u3067\u91cd\u8981\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Service\npublic class TransactionService {\n    private final SessionFactory sessionFactory;\n\n    public void executeInTransaction(Consumer&lt;Session&gt; action) {\n        try (Session session = sessionFactory.openSession()) {\n            Transaction tx = session.beginTransaction();\n            try {\n                action.accept(session);\n                tx.commit();\n            } catch (Exception e) {\n                if (tx != null) tx.rollback();\n                throw new RuntimeException(\"Transaction failed\", e);\n            }\n        }\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">5. \u547d\u540d\u6226\u7565\u3068\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u4e00\u8cab\u6027\u306e\u3042\u308b\u547d\u540d\u898f\u5247\u3092\u9069\u7528\u3057\u3001\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Entity\n@Table(name = \"tbl_products\")\n@SQLDelete(sql = \"UPDATE tbl_products SET deleted = true WHERE id = ?\")\n@Where(clause = \"deleted = false\")\npublic class Product {\n    @Column(name = \"product_name\")\n    private String name;\n\n    @Column(name = \"product_price\")\n    private BigDecimal price;\n\n    @Column(name = \"deleted\")\n    private boolean deleted = false;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">6. \u76e3\u67fb\u30ed\u30b0\u3068\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u5909\u66f4\u5c65\u6b74\u306e\u8ffd\u8de1\u3068\u7af6\u5408\u306e\u691c\u51fa\u3092\u5b9f\u88c5\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Entity\n@EntityListeners(AuditingEntityListener.class)\npublic class AuditedEntity {\n    @Version\n    private Long version;\n\n    @CreatedDate\n    private LocalDateTime createdAt;\n\n    @LastModifiedDate\n    private LocalDateTime updatedAt;\n\n    @CreatedBy\n    private String createdBy;\n\n    @LastModifiedBy\n    private String updatedBy;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">7. \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\uff1aSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u9632\u6b62\u3068\u30c7\u30fc\u30bf\u691c\u8a3c<\/h3>\n\n\n\n<p>\u30bb\u30ad\u30e5\u30a2\u306a\u30af\u30a8\u30ea\u5b9f\u884c\u3068\u30c7\u30fc\u30bf\u691c\u8a3c\u3092\u5b9f\u88c5\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Service\npublic class SecureService {\n    \/\/ \u5b89\u5168\u306a\u30af\u30a8\u30ea\u5b9f\u884c\n    public List&lt;User&gt; findByNameSafely(String name) {\n        return session.createQuery(\n            \"FROM User WHERE name = :name\", User.class)\n            .setParameter(\"name\", name)  \/\/ \u30d1\u30e9\u30e1\u30fc\u30bf\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\n            .getResultList();\n    }\n\n    \/\/ \u30c7\u30fc\u30bf\u691c\u8a3c\u306e\u5b9f\u88c5\n    @Entity\n    public class ValidatedEntity {\n        @NotNull\n        @Size(min = 3, max = 50)\n        private String name;\n\n        @Email\n        @Column(unique = true)\n        private String email;\n\n        @Pattern(regexp = \"^[A-Za-z0-9]{8,}$\")\n        private String password;\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u5229\u70b9\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u4fdd\u5b88\u6027\u5411\u4e0a<\/li>\n\n\n\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5f37\u5316<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u78ba\u4fdd<\/li>\n\n\n\n<li>\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a<\/li>\n<\/ol>\n\n\n\n<p>\u5404\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u3001\u3053\u308c\u3089\u306e\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u9069\u5207\u306b\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3057\u3066\u9069\u7528\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-20\">Hibernate\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u5b9f\u8df5\u30ac\u30a4\u30c9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-22\">1. \u30af\u30a8\u30ea\u6700\u9069\u5316<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Repository\npublic class OptimizedRepository {\n    \/\/ \u6295\u5f71\u3092\u4f7f\u7528\u3057\u3066\u5fc5\u8981\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u307f\u53d6\u5f97\n    public List&lt;UserDTO&gt; findUserNamesOnly() {\n        return session.createQuery(\n            \"SELECT new com.example.UserDTO(u.id, u.name) \" +\n            \"FROM User u\", UserDTO.class)\n            .getResultList();\n    }\n\n    \/\/ \u7d50\u679c\u30bb\u30c3\u30c8\u306e\u5236\u9650\n    public List&lt;User&gt; findRecentUsers() {\n        return session.createQuery(\"FROM User u ORDER BY u.createdAt DESC\", User.class)\n            .setMaxResults(10)\n            .setFetchSize(10)\n            .getResultList();\n    }\n}<\/pre>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5fc5\u8981\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u307f\u3092\u53d6\u5f97\uff08\u6295\u5f71\uff09<\/li>\n\n\n\n<li>\u30da\u30fc\u30b8\u30cd\u30fc\u30b7\u30e7\u30f3\u306e\u9069\u5207\u306a\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6d3b\u7528\u3057\u305f\u30bd\u30fc\u30c8<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-23\">2. \u30ad\u30e3\u30c3\u30b7\u30e5\u8a2d\u5b9a\u306e\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u30dd\u30a4\u30f3\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ hibernate.cfg.xml\u3067\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u8a2d\u5b9a\n&lt;property name=\"hibernate.cache.use_query_cache\"&gt;true&lt;\/property&gt;\n&lt;property name=\"hibernate.cache.region.factory_class\"&gt;\n    org.hibernate.cache.ehcache.EhCacheRegionFactory\n&lt;\/property&gt;\n\n\/\/ \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3067\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565\u306e\u5b9a\u7fa9\n@Entity\n@Cache(usage = CacheConcurrencyStrategy.READ_WRITE, region = \"user_cache\")\npublic class User {\n    @Id\n    private Long id;\n\n    @Cache(usage = CacheConcurrencyStrategy.READ_ONLY)\n    @ElementCollection\n    private Set&lt;String&gt; roles = new HashSet&lt;&gt;();\n}\n\n\/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u7d71\u8a08\u306e\u6709\u52b9\u5316\n&lt;property name=\"hibernate.generate_statistics\"&gt;true&lt;\/property&gt;<\/pre>\n\n\n\n<p>\u30ad\u30e3\u30c3\u30b7\u30e5\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u6700\u9069\u5024\uff1a<\/p>\n\n\n<div id=\"id-e4421f23-c4c9-4b20-99fe-417c1683f9c9\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30d1\u30e9\u30e1\u30fc\u30bf<\/th><th>\u63a8\u5968\u5024<\/th><th>\u7528\u9014<\/th><\/tr><\/thead><tbody><tr><td>max_entries<\/td><td>10000<\/td><td>\u30ad\u30e3\u30c3\u30b7\u30e5\u30a8\u30f3\u30c8\u30ea\u306e\u6700\u5927\u6570<\/td><\/tr><tr><td>time_to_live<\/td><td>3600<\/td><td>\u30a8\u30f3\u30c8\u30ea\u306e\u6709\u52b9\u671f\u9593\uff08\u79d2\uff09<\/td><\/tr><tr><td>memory_store_eviction_policy<\/td><td>LRU<\/td><td>\u30e1\u30e2\u30ea\u89e3\u653e\u30dd\u30ea\u30b7\u30fc<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\" id=\"i-24\">3. \u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u6700\u9069\u306a\u8a2d\u5b9a\u65b9\u6cd5<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ HikariCP\u8a2d\u5b9a\u4f8b\n@Configuration\npublic class DatabaseConfig {\n    @Bean\n    public HikariDataSource dataSource() {\n        HikariConfig config = new HikariConfig();\n        config.setJdbcUrl(\"jdbc:postgresql:\/\/localhost:5432\/mydb\");\n        config.setUsername(\"user\");\n        config.setPassword(\"password\");\n\n        \/\/ \u63a5\u7d9a\u30d7\u30fc\u30eb\u8a2d\u5b9a\n        config.setMaximumPoolSize(10);\n        config.setMinimumIdle(5);\n        config.setIdleTimeout(300000);\n        config.setConnectionTimeout(20000);\n\n        return new HikariDataSource(config);\n    }\n}<\/pre>\n\n\n\n<p>\u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u6700\u9069\u5316\u30d1\u30e9\u30e1\u30fc\u30bf\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># hibernate.properties\nhibernate.connection.provider_class=org.hibernate.hikaricp.internal.HikariCPConnectionProvider\nhibernate.hikari.maximumPoolSize=10\nhibernate.hikari.minimumIdle=5\nhibernate.hikari.idleTimeout=300000\nhibernate.hikari.connectionTimeout=20000<\/pre>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u305f\u3081\u306e\u30e1\u30c8\u30ea\u30af\u30b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30a2\u30af\u30c6\u30a3\u30d6\u63a5\u7d9a\u6570<\/li>\n\n\n\n<li>\u5f85\u6a5f\u6642\u9593<\/li>\n\n\n\n<li>\u63a5\u7d9a\u53d6\u5f97\u306e\u5931\u6557\u7387<\/li>\n\n\n\n<li>\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u306e\u30d2\u30c3\u30c8\u7387<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-25\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d0\u30c3\u30c1\u30b5\u30a4\u30ba\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u8a2d\u5b9a\nproperties.put(\"hibernate.jdbc.batch_size\", \"50\");\nproperties.put(\"hibernate.order_inserts\", \"true\");\nproperties.put(\"hibernate.order_updates\", \"true\");\nproperties.put(\"hibernate.batch_versioned_data\", \"true\");<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u7d71\u8a08\u60c5\u5831\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u7d71\u8a08\u60c5\u5831\u306e\u53d6\u5f97\nStatistics stats = sessionFactory.getStatistics();\nSystem.out.println(\"Query cache hit count: \" + stats.getQueryCacheHitCount());\nSystem.out.println(\"Second level cache hit count: \" + stats.getSecondLevelCacheHitCount());<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30bb\u30c3\u30b7\u30e7\u30f3\u30af\u30ea\u30a2\u6226\u7565\npublic void processBulkData(List&lt;Entity&gt; entities) {\n    Session session = sessionFactory.openSession();\n    Transaction tx = session.beginTransaction();\n\n    try {\n        for (int i = 0; i &lt; entities.size(); i++) {\n            session.persist(entities.get(i));\n            if (i % 50 == 0) {\n                session.flush();\n                session.clear(); \/\/ \u30e1\u30e2\u30ea\u89e3\u653e\n            }\n        }\n        tx.commit();\n    } catch (Exception e) {\n        tx.rollback();\n        throw e;\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u3068\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001Hibernate\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u6027\u80fd\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-26\">Hibernate\u3067\u3088\u304f\u3042\u308b\u30c8\u30e9\u30d6\u30eb\u3068\u89e3\u6c7a\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-27\">LazyInitializationException\u306e\u5bfe\u51e6\u6cd5<\/h3>\n\n\n\n<p>LazyInitializationException\u306f\u3001Hibernate\u306e\u6700\u3082\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u306e1\u3064\u3067\u3059\u3002\u3053\u306e\u30a8\u30e9\u30fc\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u9589\u3058\u3089\u308c\u305f\u5f8c\u306b\u9045\u5ef6\u30ed\u30fc\u30c9\u3055\u308c\u305f\u95a2\u9023\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u305f\u969b\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-28\">\u554f\u984c\u306e\u30b3\u30fc\u30c9\u4f8b<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Entity\npublic class Department {\n    @OneToMany(mappedBy = \"department\")\n    private List&lt;Employee&gt; employees;  \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u3067LAZY\n}\n\n\/\/ \u554f\u984c\u304c\u767a\u751f\u3059\u308b\u30b1\u30fc\u30b9\nDepartment dept = session.get(Department.class, 1L);\nsession.close();\ndept.getEmployees().size();  \/\/ LazyInitializationException!<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-29\">\u89e3\u6c7a\u65b9\u6cd5<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Eager Fetching\u306e\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Entity\npublic class Department {\n    @OneToMany(mappedBy = \"department\", fetch = FetchType.EAGER)\n    private List&lt;Employee&gt; employees;\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>JOIN FETCH\u306e\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Department dept = session.createQuery(\n    \"SELECT d FROM Department d \" +\n    \"LEFT JOIN FETCH d.employees \" +\n    \"WHERE d.id = :id\", Department.class)\n    .setParameter(\"id\", 1L)\n    .getSingleResult();<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>@Transactional\u306e\u9069\u5207\u306a\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Service\n@Transactional(readOnly = true)\npublic class DepartmentService {\n    public List&lt;Employee&gt; getEmployees(Long deptId) {\n        Department dept = repository.findById(deptId);\n        return dept.getEmployees(); \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5185\u306a\u306e\u3067OK\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-30\">\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u767a\u751f\u6642\u306e\u5bfe\u5fdc\u7b56<\/h3>\n\n\n\n<p>\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u306f\u8907\u6570\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u304c\u4e92\u3044\u306b\u30ea\u30bd\u30fc\u30b9\u3092\u30ed\u30c3\u30af\u3057\u5408\u3046\u72b6\u614b\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-31\">\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u5bfe\u7b56\u306e\u5b9f\u88c5\u4f8b<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Service\npublic class DeadlockHandlingService {\n    private static final int MAX_RETRIES = 3;\n    private static final long RETRY_DELAY = 1000; \/\/ 1\u79d2\n\n    @Transactional\n    public void executeWithRetry(Runnable operation) {\n        int attempts = 0;\n        while (attempts &lt; MAX_RETRIES) {\n            try {\n                operation.run();\n                return;\n            } catch (Exception e) {\n                if (isDeadlockException(e)) {\n                    attempts++;\n                    if (attempts == MAX_RETRIES) {\n                        throw new RuntimeException(\"\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u306e\u89e3\u6c7a\u306b\u5931\u6557\u3057\u307e\u3057\u305f\", e);\n                    }\n                    sleep(RETRY_DELAY);\n                } else {\n                    throw e;\n                }\n            }\n        }\n    }\n\n    private boolean isDeadlockException(Exception e) {\n        return e.getCause() instanceof org.hibernate.exception.LockAcquisitionException;\n    }\n\n    private void sleep(long millis) {\n        try {\n            Thread.sleep(millis);\n        } catch (InterruptedException e) {\n            Thread.currentThread().interrupt();\n        }\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-32\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u9632\u6b62\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u306f\u3001\u5927\u898f\u6a21\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u3088\u304f\u767a\u751f\u3059\u308b\u554f\u984c\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-33\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u5bfe\u7b56<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u306e\u9069\u5207\u306a\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class SessionManager {\n    public &lt;T&gt; T executeInSession(Function&lt;Session, T&gt; operation) {\n        try (Session session = sessionFactory.openSession()) {\n            return operation.apply(session);\n        } \/\/ \u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u81ea\u52d5\u30af\u30ed\u30fc\u30ba\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Entity\npublic class Parent {\n    @OneToMany(mappedBy = \"parent\", cascade = CascadeType.ALL, \n               orphanRemoval = true)\n    private List&lt;Child&gt; children = new ArrayList&lt;&gt;();\n\n    public void removeChild(Child child) {\n        children.remove(child);\n        child.setParent(null); \/\/ \u95a2\u9023\u306e\u4e21\u5074\u3092\u66f4\u65b0\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u9069\u5207\u306a\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30af\u30ea\u30a2\npublic void clearCache() {\n    Session session = sessionFactory.getCurrentSession();\n    session.clear(); \/\/ \u30bb\u30c3\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30af\u30ea\u30a2\n    sessionFactory.getCache().evictAllRegions(); \/\/ 2\u6b21\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30af\u30ea\u30a2\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-34\">\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30ed\u30ae\u30f3\u30b0\u306e\u6709\u52b9\u5316<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># application.properties\nlogging.level.org.hibernate.SQL=DEBUG\nlogging.level.org.hibernate.type.descriptor.sql.BasicBinder=TRACE<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u7d71\u8a08\u60c5\u5831\u306e\u53ce\u96c6<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">hibernate.generate_statistics=true\nhibernate.session.events.log.LOG_QUERIES_SLOWER_THAN_MS=25<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u30a8\u30e9\u30fc\u6642\u306e\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u53ce\u96c6<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ControllerAdvice\npublic class HibernateExceptionHandler {\n    @ExceptionHandler(HibernateException.class)\n    public ResponseEntity&lt;String&gt; handleHibernateException(HibernateException e) {\n        log.error(\"Hibernate error: \", e);\n        return ResponseEntity.status(500)\n            .body(\"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u51e6\u7406\u30a8\u30e9\u30fc: \" + e.getMessage());\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5bfe\u7b56\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u591a\u304f\u306e\u4e00\u822c\u7684\u306aHibernate\u306e\u554f\u984c\u3092\u9632\u304e\u3001\u767a\u751f\u6642\u3082\u9069\u5207\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-35\">Hibernate6\u306e\u65b0\u6a5f\u80fd\u3068\u5c06\u6765\u306e\u5c55\u671b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-36\">\u30d0\u30fc\u30b8\u30e7\u30f35\u304b\u3089\u306e\u4e3b\u8981\u306a\u5909\u66f4\u70b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-37\">1. Jakarta Persistence\u3078\u306e\u79fb\u884c<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Hibernate 5\uff08\u65e7\uff09\nimport javax.persistence.Entity;\nimport javax.persistence.Id;\n\n\/\/ Hibernate 6\uff08\u65b0\uff09\nimport jakarta.persistence.Entity;\nimport jakarta.persistence.Id;\n\n@Entity\npublic class User {\n    @Id\n    private Long id;\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-38\">2. HQL\/JPQL\u306e\u6539\u5584<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u65b0\u3057\u3044\u69cb\u6587\u30b5\u30dd\u30fc\u30c8\nString query = \"\"\"\n    SELECT u\n    FROM User u\n    WHERE u.status IN :statuses AND\n    u.lastLoginDate &gt; :date\n    ORDER BY u.username\n    \"\"\";\n\nList&lt;User&gt; users = session.createQuery(query, User.class)\n    .setParameterList(\"statuses\", Arrays.asList(\"ACTIVE\", \"PENDING\"))\n    .setParameter(\"date\", LocalDateTime.now().minusDays(30))\n    .getResultList();<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-39\">\u65b0\u3057\u3044API\u3068\u6539\u5584\u3055\u308c\u305f\u6a5f\u80fd<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-40\">1. \u65b0\u3057\u3044\u30d6\u30fc\u30c8\u30b9\u30c8\u30e9\u30c3\u30d7API<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u65b0\u3057\u3044\u30d6\u30fc\u30c8\u30b9\u30c8\u30e9\u30c3\u30d7API\u306e\u4f7f\u7528\u4f8b\nStandardServiceRegistry registry = new StandardServiceRegistryBuilder()\n    .configure()\n    .build();\n\nMetadataSources sources = new MetadataSources(registry);\nsources.addAnnotatedClass(User.class);\n\nSessionFactory sessionFactory = sources.buildMetadata()\n    .getSessionFactoryBuilder()\n    .applyInterceptor(new AuditInterceptor())\n    .build();<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-41\">2. \u5f37\u5316\u3055\u308c\u305f\u30af\u30a8\u30ea\u6a5f\u80fd<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u65b0\u3057\u3044\u30af\u30a8\u30ea\u6700\u9069\u5316\u6a5f\u80fd\n@Repository\npublic class EnhancedRepository {\n    \/\/ \u8907\u6570\u306eResultSet\u3092\u6271\u3046\u6539\u5584\u3055\u308c\u305fAPI\n    public Map&lt;String, Object&gt; getComplexData() {\n        return session.createNativeQuery(\n            \"SELECT * FROM users; SELECT * FROM orders;\")\n            .addEntity(\"users\", User.class)\n            .addEntity(\"orders\", Order.class)\n            .setTupleTransformer((tuple, aliases) -&gt; {\n                \/\/ \u8907\u6570\u306eResultSet\u306e\u51e6\u7406\n                return processMultipleResultSets(tuple);\n            })\n            .uniqueResult();\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-42\">\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u306e\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-43\">1. \u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3068\u306e\u7d71\u5408<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Configuration\npublic class ReactiveHibernateConfig {\n    @Bean\n    public ReactiveTransactionManager transactionManager(\n            SessionFactory sessionFactory) {\n        return new HibernateReactiveTransactionManager(sessionFactory);\n    }\n}\n\n@Repository\npublic class ReactiveUserRepository {\n    public Flux&lt;User&gt; findAllUsers() {\n        return Flux.defer(() -&gt; \n            Flux.fromIterable(session.createQuery(\n                \"FROM User\", User.class).list())\n        );\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-44\">2. \u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u30c7\u30fc\u30bf\u6574\u5408\u6027<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Service\npublic class DistributedTransactionService {\n    @Transactional\n    public void processDistributedOperation() {\n        \/\/ \u30a4\u30d9\u30f3\u30c8\u30bd\u30fc\u30b7\u30f3\u30b0\n        eventStore.save(new UserCreatedEvent(user));\n\n        \/\/ \u30a2\u30a6\u30c8\u30dc\u30c3\u30af\u30b9\u30d1\u30bf\u30fc\u30f3\n        outboxRepository.save(OutboxMessage.builder()\n            .aggregateType(\"USER\")\n            .eventType(\"CREATED\")\n            .payload(userJson)\n            .build());\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-45\">\u5c06\u6765\u306e\u5c55\u671b<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30af\u30e9\u30a6\u30c9\u30cd\u30a4\u30c6\u30a3\u30d6\u5bfe\u5fdc\u306e\u5f37\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kubernetes\u74b0\u5883\u3067\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30b3\u30f3\u30c6\u30ca\u5316\u3078\u306e\u5bfe\u5fdc\u5f37\u5316<\/li>\n\n\n\n<li>\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u3068\u306e\u9023\u643a\u6539\u5584<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u66f4\u306a\u308b\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3088\u308a\u52b9\u7387\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30af\u30a8\u30ea\u5b9f\u884c\u306e\u9ad8\u901f\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u65b0\u3057\u3044\u6280\u8853\u30c8\u30ec\u30f3\u30c9\u3078\u306e\u5bfe\u5fdc<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>GraphQL\u3068\u306e\u7d71\u5408\u5f37\u5316<\/li>\n\n\n\n<li>NoSQL\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u306e\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u904b\u7528<\/li>\n\n\n\n<li>AI\u3092\u6d3b\u7528\u3057\u305f\u6700\u9069\u5316\u6a5f\u80fd<\/li>\n<\/ul>\n\n\n\n<p>Hibernate6\u306f\u3001\u73fe\u4ee3\u306eJava\u958b\u767a\u306b\u304a\u3051\u308b\u8981\u4ef6\u306b\u5fdc\u3048\u3064\u3064\u3001\u5c06\u6765\u7684\u306a\u6280\u8853\u30c8\u30ec\u30f3\u30c9\u306b\u3082\u67d4\u8edf\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u57fa\u76e4\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3084\u30af\u30e9\u30a6\u30c9\u30cd\u30a4\u30c6\u30a3\u30d6\u74b0\u5883\u3067\u306e\u904b\u7528\u3092\u8996\u91ce\u306b\u5165\u308c\u305f\u6a5f\u80fd\u5f37\u5316\u304c\u9032\u3081\u3089\u308c\u3066\u304a\u308a\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u9078\u629e\u80a2\u3067\u3042\u308a\u7d9a\u3051\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; 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