{"id":62099,"date":"2024-10-13T16:10:15","date_gmt":"2024-10-13T08:10:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62099\/"},"modified":"2024-10-13T16:10:16","modified_gmt":"2024-10-13T08:10:16","slug":"java%e6%95%b8%e6%93%9a%e5%ba%ab%e6%98%a0%e5%b0%84%e6%8a%80%e8%a1%93%ef%bc%9a%e7%82%ba%e4%bb%80%e9%ba%bc%e5%ae%83%e6%98%af%e4%bb%a3%e7%a2%bc%e7%b7%a8%e5%af%ab%e7%9a%84%e9%97%9c%e9%8d%b5%e6%ad%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62099\/","title":{"rendered":"Java\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\uff1a\u70ba\u4ec0\u9ebc\u5b83\u662f\u4ee3\u78bc\u7de8\u5beb\u7684\u95dc\u9375\u6b65\u9a5f\uff1f (java\u6578\u64da\u5eab\u6620\u5c04)"},"content":{"rendered":"<h1 id=\"java%e6%95%b8%e6%93%9a%e5%ba%ab%e6%98%a0%e5%b0%84%e6%8a%80%e8%a1%93%ef%bc%9a%e7%82%ba%e4%bb%80%e9%ba%bc%e5%ae%83%e6%98%af%e4%bb%a3%e7%a2%bc%e7%b7%a8%e5%af%ab%e7%9a%84%e9%97%9c%e9%8d%b5%e6%ad%a5-ICOCyvMjKs\">Java\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\uff1a\u70ba\u4ec0\u9ebc\u5b83\u662f\u4ee3\u78bc\u7de8\u5beb\u7684\u95dc\u9375\u6b65\u9a5f\uff1f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u5df2\u7d93\u6210\u70ba\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002Java\u4f5c\u70ba\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u9ad8\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0eJava\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\u7684\u57fa\u672c\u6982\u5ff5\u3001\u512a\u52e2\u4ee5\u53ca\u5982\u4f55\u5728\u5be6\u969b\u958b\u767c\u4e2d\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e5%ba%ab%e6%98%a0%e5%b0%84%e6%8a%80%e8%a1%93%ef%bc%9f-ICOCyvMjKs\">\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\uff08Object-Relational Mapping\uff0c\u7c21\u7a31ORM\uff09\u662f\u4e00\u7a2e\u5c07\u5c0d\u8c61\u5c0e\u5411\u7de8\u7a0b\u4e2d\u7684\u5c0d\u8c61\u8207\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u8868\u9032\u884c\u6620\u5c04\u7684\u6280\u8853\u3002\u9019\u7a2e\u6280\u8853\u4f7f\u5f97\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u5c0d\u8c61\u4f86\u64cd\u4f5c\u6578\u64da\uff0c\u800c\u4e0d\u5fc5\u76f4\u63a5\u7de8\u5bebSQL\u8a9e\u53e5\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u958b\u767c\u6548\u7387\u548c\u4ee3\u78bc\u7684\u53ef\u7dad\u8b77\u6027\u3002<\/p>\n<h2 id=\"java%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e6%98%a0%e5%b0%84%e6%8a%80%e8%a1%93-ICOCyvMjKs\">Java\u4e2d\u7684\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853<\/h2>\n<p>\u5728Java\u4e2d\uff0c\u6700\u5e38\u898b\u7684\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\u5305\u62ecHibernate\u3001JPA\uff08Java Persistence API\uff09\u548cMyBatis\u7b49\u3002\u9019\u4e9b\u6280\u8853\u5404\u6709\u7279\u9ede\uff0c\u4f46\u90fd\u65e8\u5728\u7c21\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u3002<\/p>\n<h3 id=\"1-hibernate-ICOCyvMjKs\">1. Hibernate<\/h3>\n<p>Hibernate\u662f\u4e00\u500b\u6d41\u884c\u7684ORM\u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u5eab\u6620\u5c04\u529f\u80fd\u3002\u5b83\u652f\u6301\u591a\u7a2e\u6578\u64da\u5eab\uff0c\u4e26\u4e14\u80fd\u5920\u81ea\u52d5\u751f\u6210SQL\u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Hibernate\u6620\u5c04\u793a\u4f8b\uff1a<\/p>\n<pre><code>\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\")\n    private String username;\n\n    @Column(name = \"password\")\n    private String password;\n\n    \/\/ getters and setters\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0cUser\u985e\u88ab\u6620\u5c04\u5230\u6578\u64da\u5eab\u4e2d\u7684users\u8868\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u901a\u904e\u5c0d\u8c61\u64cd\u4f5c\u6578\u64da\uff0c\u800c\u4e0d\u5fc5\u95dc\u5fc3\u5e95\u5c64\u7684SQL\u8a9e\u53e5\u3002<\/p>\n<h3 id=\"2-jpa-ICOCyvMjKs\">2. JPA<\/h3>\n<p>JPA\u662fJava EE\u7684\u4e00\u90e8\u5206\uff0c\u63d0\u4f9b\u4e86\u4e00\u500b\u6a19\u6e96\u7684ORM\u63a5\u53e3\u3002\u5b83\u7684\u512a\u52e2\u5728\u65bc\u53ef\u4ee5\u8207\u591a\u7a2e\u5be6\u73fe\uff08\u5982Hibernate\uff09\u4e00\u8d77\u4f7f\u7528\uff0c\u4e26\u4e14\u652f\u6301\u66f4\u9748\u6d3b\u7684\u67e5\u8a62\u8a9e\u8a00JPQL\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528JPA\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n@Entity\npublic class Product {\n    @Id\n    @GeneratedValue(strategy = GenerationType.AUTO)\n    private Long id;\n\n    private String name;\n    private Double price;\n\n    \/\/ getters and setters\n}\n<\/code><\/pre>\n<h3 id=\"3-mybatis-ICOCyvMjKs\">3. MyBatis<\/h3>\n<p>MyBatis\u662f\u4e00\u500b\u534aORM\u6846\u67b6\uff0c\u5141\u8a31\u958b\u767c\u8005\u7de8\u5bebSQL\u8a9e\u53e5\uff0c\u4f46\u540c\u6642\u63d0\u4f9b\u4e86\u5c0d\u8c61\u6620\u5c04\u7684\u529f\u80fd\u3002\u9019\u4f7f\u5f97\u958b\u767c\u8005\u53ef\u4ee5\u5728\u9700\u8981\u6642\u9748\u6d3b\u5730\u63a7\u5236SQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u500bMyBatis\u7684\u6620\u5c04\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n&lt;select id=\"getUser\" parameterType=\"int\" resultType=\"User\"&gt;\n    SELECT * FROM users WHERE id = #{id}\n&lt;\/select&gt;\n<\/code><\/pre>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e6%95%b8%e6%93%9a%e5%ba%ab%e6%98%a0%e5%b0%84%e6%8a%80%e8%a1%93%e6%98%af%e4%bb%a3%e7%a2%bc%e7%b7%a8%e5%af%ab%e7%9a%84%e9%97%9c%e9%8d%b5%e6%ad%a5%e9%a9%9f%ef%bc%9f-ICOCyvMjKs\">\u70ba\u4ec0\u9ebc\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\u662f\u4ee3\u78bc\u7de8\u5beb\u7684\u95dc\u9375\u6b65\u9a5f\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\u5728\u4ee3\u78bc\u7de8\u5beb\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\uff0c\u4e3b\u8981\u9ad4\u73fe\u5728\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u958b\u767c\u6548\u7387\uff1a<\/strong>\u958b\u767c\u8005\u4e0d\u9700\u8981\u624b\u52d5\u7de8\u5beb\u7e41\u7463\u7684SQL\u8a9e\u53e5\uff0c\u5f9e\u800c\u7bc0\u7701\u4e86\u6642\u9593\u3002<\/li>\n<li><strong>\u589e\u5f37\u4ee3\u78bc\u53ef\u8b80\u6027\uff1a<\/strong>\u4f7f\u7528\u5c0d\u8c61\u4f86\u8868\u793a\u6578\u64da\uff0c\u4f7f\u4ee3\u78bc\u66f4\u6613\u65bc\u7406\u89e3\u548c\u7dad\u8b77\u3002<\/li>\n<li><strong>\u6e1b\u5c11\u932f\u8aa4\uff1a<\/strong>\u81ea\u52d5\u751f\u6210\u7684SQL\u8a9e\u53e5\u6e1b\u5c11\u4e86\u624b\u52d5\u7de8\u5beb\u6642\u53ef\u80fd\u51fa\u73fe\u7684\u932f\u8aa4\u3002<\/li>\n<li><strong>\u652f\u6301\u6578\u64da\u5eab\u7684\u8b8a\u66f4\uff1a<\/strong>\u7576\u6578\u64da\u5eab\u7d50\u69cb\u767c\u751f\u8b8a\u5316\u6642\uff0cORM\u6846\u67b6\u901a\u5e38\u80fd\u5920\u81ea\u52d5\u9069\u61c9\uff0c\u6e1b\u5c11\u4e86\u4ee3\u78bc\u7684\u4fee\u6539\u5de5\u4f5c\u91cf\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-ICOCyvMjKs\">\u7d50\u8ad6<\/h2>\n<p>Java\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\u4e0d\u50c5\u7c21\u5316\u4e86\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u9084\u63d0\u9ad8\u4e86\u958b\u767c\u6548\u7387\u548c\u4ee3\u78bc\u7684\u53ef\u7dad\u8b77\u6027\u3002\u7121\u8ad6\u662f\u4f7f\u7528Hibernate\u3001JPA\u9084\u662fMyBatis\uff0c\u958b\u767c\u8005\u90fd\u80fd\u5920\u66f4\u5c08\u6ce8\u65bc\u696d\u52d9\u908f\u8f2f\u7684\u5be6\u73fe\uff0c\u800c\u4e0d\u662f\u5e95\u5c64\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0c\u9019\u4e9b\u6620\u5c04\u6280\u8853\u5c07\u5728\u672a\u4f86\u7684\u958b\u767c\u4e2d\u626e\u6f14\u8d8a\u4f86\u8d8a\u91cd\u8981\u7684\u89d2\u8272\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u958b\u767c\u5de5\u4f5c\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u958b\u767c\u63d0\u4f9b\u7a69\u5b9a\u7684\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Java\u6578\u64da\u5eab\u6620\u5c04\u6280\u8853\u7684\u91cd\u8981\u6027\uff0c\u4e86\u89e3\u5b83\u5982\u4f55\u7c21\u5316\u6578\u64da\u64cd\u4f5c\u4e26\u63d0\u5347\u4ee3\u78bc\u6548\u7387\uff0c\u662f\u958b\u767c\u904e\u7a0b\u4e2d\u7684\u95dc\u9375\u6b65\u9a5f\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-62099","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=62099"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62099\/revisions"}],"predecessor-version":[{"id":62100,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62099\/revisions\/62100"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62099"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62099"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}