{"id":8631,"date":"2023-11-28T20:33:16","date_gmt":"2023-11-28T12:33:16","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=8631"},"modified":"2023-12-06T10:54:19","modified_gmt":"2023-12-06T02:54:19","slug":"springboot-zhongjpa-hehibernate-you-na-xie-qu-bie","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/springboot-zhongjpa-hehibernate-you-na-xie-qu-bie\/","title":{"rendered":"SpringBoot\u4e2dJPA\u548cHibernate\u6709\u54ea\u4e9b\u533a\u522b\uff1f JPA\u53ef\u4ee5\u652f\u6301\u52a8\u6001SQL \u5417\uff1f"},"content":{"rendered":"<p>\u5728Spring Boot\u4e2d\uff0cJPA\uff08Java Persistence API\uff09\u548cHibernate\u90fd\u662f\u7528\u4e8e\u5904\u7406\u6301\u4e45\u5316\u6570\u636e\u7684\u6280\u672f\uff0c\u4f46\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u4e00\u4e9b\u533a\u522b\u3002<\/p>\n<h3><a id=\"1-jpa-vs-hibernate\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>1. JPA vs. Hibernate:<\/h3>\n<ul>\n<li>\n<strong>JPA:<\/strong><\/p>\n<ul>\n<li>JPA \u662f\u4e00\u79cd\u89c4\u8303\uff0c\u5b9a\u4e49\u4e86\u4e00\u7ec4\u7528\u4e8e\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff08ORM\uff09\u7684API\uff0c\u5141\u8bb8Java\u5f00\u53d1\u8005\u901a\u8fc7\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u5f0f\u4e0e\u6570\u636e\u5e93\u8fdb\u884c\u4ea4\u4e92\u3002<\/li>\n<li>JPA\u89c4\u8303\u7531Java\u793e\u533a\uff08\u4e3b\u8981\u662fJava EE\uff09\u5236\u5b9a\uff0c\u63d0\u4f9b\u4e86\u4e00\u79cd\u6807\u51c6\u7684\u6301\u4e45\u5316\u89c4\u8303\uff0c\u53ef\u4ee5\u4e0e\u5404\u79cdORM\u6846\u67b6\u8fdb\u884c\u96c6\u6210\uff0c\u5176\u4e2dHibernate\u662f\u5176\u4e2d\u4e4b\u4e00\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>Hibernate:<\/strong><\/p>\n<ul>\n<li>Hibernate \u662f\u4e00\u4e2a\u5177\u4f53\u7684ORM\u6846\u67b6\uff0c\u5b9e\u73b0\u4e86JPA\u89c4\u8303\u3002\u5b83\u662f\u4e00\u4e2a\u5f3a\u5927\u800c\u7075\u6d3b\u7684\u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u8bb8\u591a\u9ad8\u7ea7\u7684\u7279\u6027\uff0c\u5141\u8bb8\u5f00\u53d1\u8005\u8fdb\u884c\u66f4\u7ec6\u7c92\u5ea6\u7684\u63a7\u5236\u3002<\/li>\n<li>Hibernate \u63d0\u4f9b\u4e86\u4e00\u4e9b\u72ec\u6709\u7684\u529f\u80fd\uff0c\u4f8b\u5982\u7f13\u5b58\u7b56\u7565\u3001\u67e5\u8be2\u8bed\u8a00\uff08HQL\uff09\u3001\u4e00\u7ea7\u7f13\u5b58\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><a id=\"2-jpa%E6%98%AF%E5%90%A6%E6%94%AF%E6%8C%81%E5%8A%A8%E6%80%81sql%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>2. JPA\u662f\u5426\u652f\u6301\u52a8\u6001SQL\uff1a<\/h3>\n<p>JPA\u672c\u8eab\u662f\u4e00\u79cd\u89c4\u8303\uff0c\u800c\u4e0d\u662f\u5177\u4f53\u7684\u5b9e\u73b0\u3002\u5177\u4f53\u7684JPA\u5b9e\u73b0\uff08\u4f8b\u5982Hibernate\uff09\u53ef\u4ee5\u652f\u6301\u52a8\u6001SQL\uff0c\u4f46\u52a8\u6001SQL\u7684\u5b9e\u73b0\u65b9\u5f0f\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<ul>\n<li>\n<strong>Hibernate\uff1a<\/strong><\/p>\n<ul>\n<li>Hibernate \u63d0\u4f9b\u4e86 Criteria API \u548c HQL\uff08Hibernate Query Language\uff09\uff0c\u8fd9\u4e24\u8005\u90fd\u5141\u8bb8\u6784\u5efa\u52a8\u6001\u67e5\u8be2\u3002<\/li>\n<li>Criteria API \u5141\u8bb8\u4f7f\u7528\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u5f0f\u521b\u5efa\u67e5\u8be2\uff0c\u800c HQL \u5219\u5141\u8bb8\u901a\u8fc7\u4e00\u79cd\u7c7b\u4f3cSQL\u7684\u8bed\u8a00\u7f16\u5199\u67e5\u8be2\u8bed\u53e5\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>Spring Data JPA\uff1a<\/strong><\/p>\n<ul>\n<li>Spring Data JPA \u662f\u5bf9 JPA \u7684\u7b80\u5316\u5c01\u88c5\uff0c\u53ef\u4ee5\u901a\u8fc7\u65b9\u6cd5\u547d\u540d\u89c4\u5219\u3001Query \u6ce8\u89e3\u7b49\u65b9\u5f0f\u6765\u58f0\u660e\u67e5\u8be2\uff0c\u4e5f\u652f\u6301\u52a8\u6001\u67e5\u8be2\u3002<\/li>\n<li>\u4f7f\u7528 Spring Data JPA\uff0c\u4f60\u53ef\u4ee5\u5b9a\u4e49\u67e5\u8be2\u65b9\u6cd5\uff0cSpring Data JPA \u4f1a\u6839\u636e\u65b9\u6cd5\u540d\u81ea\u52a8\u751f\u6210\u67e5\u8be2\uff0c\u6216\u8005\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>@Query<\/code> \u6ce8\u89e3\u7f16\u5199\u81ea\u5b9a\u4e49\u67e5\u8be2\u8bed\u53e5\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff08Spring Data JPA\u4e2d\u7684\u52a8\u6001\u67e5\u8be2\uff09\uff1a<\/strong><\/p>\n<pre><code class=\"language-java\">public interface UserRepository extends JpaRepository&lt;User, Long&gt; {\n\n    List&lt;User&gt; findByUsername(String username);\n\n    @Query(&quot;SELECT u FROM User u WHERE u.username = :username&quot;)\n    List&lt;User&gt; findUsersByUsername(@Param(&quot;username&quot;) String username);\n\n    @Query(&quot;SELECT u FROM User u WHERE u.username LIKE %:keyword%&quot;)\n    List&lt;User&gt; findUsersByKeyword(@Param(&quot;keyword&quot;) String keyword);\n}\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>findByUsername<\/code> \u662f\u4e00\u4e2a\u57fa\u4e8e\u65b9\u6cd5\u547d\u540d\u89c4\u5219\u751f\u6210\u7684\u9759\u6001\u67e5\u8be2\uff0c\u800c <code>findUsersByUsername<\/code> \u548c <code>findUsersByKeyword<\/code> \u4f7f\u7528\u4e86\u81ea\u5b9a\u4e49\u7684\u52a8\u6001\u67e5\u8be2\u8bed\u53e5\u3002<\/p>\n<p>\u603b\u7684\u6765\u8bf4\uff0cJPA\u672c\u8eab\u63d0\u4f9b\u4e86\u4e00\u4e9b\u673a\u5236\u6765\u652f\u6301\u52a8\u6001\u67e5\u8be2\uff0c\u800c\u5177\u4f53\u7684\u5b9e\u73b0\u6846\u67b6\uff08\u4f8b\u5982Hibernate\u3001Spring Data JPA\uff09\u5219\u4f1a\u63d0\u4f9b\u66f4\u5177\u4f53\u7684\u5de5\u5177\u548c\u65b9\u5f0f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Spring Boot\u4e2d\uff0cJPA\uff08Java Persistence API\uff09\u548cHibernate\u90fd\u662f\u7528\u4e8e\u5904\u7406 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-8631","post","type-post","status-publish","format-standard","hentry","category-springboot"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8631","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=8631"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8631\/revisions"}],"predecessor-version":[{"id":16644,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8631\/revisions\/16644"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=8631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=8631"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=8631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}