{"id":167017,"date":"2024-11-05T21:40:24","date_gmt":"2024-11-05T13:40:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/167017\/"},"modified":"2024-11-05T21:40:25","modified_gmt":"2024-11-05T13:40:25","slug":"%e5%88%a9%e7%94%a8java%e6%8a%80%e8%a1%93%e6%89%93%e9%80%a0%e9%ab%98%e6%95%88%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b3%bb%e7%b5%b1-%e7%94%a8java%e7%b7%a8%e5%af%ab%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/167017\/","title":{"rendered":"\u5229\u7528JAVA\u6280\u8853\u6253\u9020\u9ad8\u6548\u6578\u64da\u5eab\u7cfb\u7d71 (\u7528java\u7de8\u5beb\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e5%88%a9%e7%94%a8java%e6%8a%80%e8%a1%93%e6%89%93%e9%80%a0%e9%ab%98%e6%95%88%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b3%bb%e7%b5%b1-%e7%94%a8java%e7%b7%a8%e5%af%ab%e6%95%b8%e6%93%9a%e5%ba%ab-yiHpaUXtbA\">\u5229\u7528JAVA\u6280\u8853\u6253\u9020\u9ad8\u6548\u6578\u64da\u5eab\u7cfb\u7d71 (\u7528java\u7de8\u5beb\u6578\u64da\u5eab)<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u7684\u6548\u7387\u548c\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002Java\u4f5c\u70ba\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u548c\u6846\u67b6\uff0c\u4f7f\u958b\u767c\u8005\u80fd\u5920\u69cb\u5efa\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Java\u6280\u8853\u4f86\u8a2d\u8a08\u548c\u5be6\u73fe\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"java%e8%88%87%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%95%b4%e5%90%88-yiHpaUXtbA\">Java\u8207\u6578\u64da\u5eab\u7684\u6574\u5408<\/h2>\n<p>Java\u63d0\u4f9b\u4e86\u591a\u7a2eAPI\u4f86\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u662fJava Database Connectivity (JDBC)\u3002JDBC\u662f\u4e00\u500bJava API\uff0c\u5141\u8a31Java\u61c9\u7528\u7a0b\u5e8f\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u9023\u63a5\u548c\u64cd\u4f5c\u3002\u901a\u904eJDBC\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u57f7\u884cSQL\u67e5\u8a62\u3001\u66f4\u65b0\u6578\u64da\u4ee5\u53ca\u8655\u7406\u7d50\u679c\u96c6\u3002<\/p>\n<h3 id=\"jdbc%e7%9a%84%e5%9f%ba%e6%9c%ac%e4%bd%bf%e7%94%a8-yiHpaUXtbA\">JDBC\u7684\u57fa\u672c\u4f7f\u7528<\/h3>\n<p>\u4f7f\u7528JDBC\u9023\u63a5\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u52a0\u8f09\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f<\/li>\n<li>\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5<\/li>\n<li>\u5275\u5efaStatement\u5c0d\u8c61<\/li>\n<li>\u57f7\u884cSQL\u67e5\u8a62<\/li>\n<li>\u8655\u7406\u7d50\u679c\u96c6<\/li>\n<li>\u95dc\u9589\u9023\u63a5<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528JDBC\u9023\u63a5\u5230MySQL\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\uff1a<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class DatabaseExample {\n    public static void main(String[] args) {\n        Connection connection = null;\n        Statement statement = null;\n        ResultSet resultSet = null;\n\n        try {\n            \/\/ \u52a0\u8f09MySQL\u9a45\u52d5\u7a0b\u5e8f\n            Class.forName(\"com.mysql.cj.jdbc.Driver\");\n            \/\/ \u5efa\u7acb\u9023\u63a5\n            connection = DriverManager.getConnection(\"jdbc:mysql:\/\/localhost:3306\/mydatabase\", \"username\", \"password\");\n            \/\/ \u5275\u5efaStatement\u5c0d\u8c61\n            statement = connection.createStatement();\n            \/\/ \u57f7\u884c\u67e5\u8a62\n            resultSet = statement.executeQuery(\"SELECT * FROM users\");\n\n            \/\/ \u8655\u7406\u7d50\u679c\u96c6\n            while (resultSet.next()) {\n                System.out.println(\"User ID: \" + resultSet.getInt(\"id\"));\n                System.out.println(\"Username: \" + resultSet.getString(\"username\"));\n            }\n        } catch (Exception e) {\n            e.printStackTrace();\n        } finally {\n            \/\/ \u95dc\u9589\u9023\u63a5\n            try { if (resultSet != null) resultSet.close(); } catch (Exception e) {}\n            try { if (statement != null) statement.close(); } catch (Exception e) {}\n            try { if (connection != null) connection.close(); } catch (Exception e) {}\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8orm%e6%a1%86%e6%9e%b6%e6%8f%90%e9%ab%98%e9%96%8b%e7%99%bc%e6%95%88%e7%8e%87-yiHpaUXtbA\">\u4f7f\u7528ORM\u6846\u67b6\u63d0\u9ad8\u958b\u767c\u6548\u7387<\/h2>\n<p>\u9664\u4e86JDBC\uff0cJava\u9084\u652f\u6301\u591a\u7a2e\u5c0d\u8c61\u95dc\u4fc2\u6620\u5c04\uff08ORM\uff09\u6846\u67b6\uff0c\u5982Hibernate\u548cJPA\u3002\u9019\u4e9b\u6846\u67b6\u53ef\u4ee5\u7c21\u5316\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u8b93\u958b\u767c\u8005\u5c08\u6ce8\u65bc\u696d\u52d9\u908f\u8f2f\uff0c\u800c\u4e0d\u5fc5\u904e\u591a\u95dc\u6ce8SQL\u8a9e\u53e5\u7684\u7d30\u7bc0\u3002<\/p>\n<h3 id=\"hibernate%e7%9a%84%e5%9f%ba%e6%9c%ac%e4%bd%bf%e7%94%a8-yiHpaUXtbA\">Hibernate\u7684\u57fa\u672c\u4f7f\u7528<\/h3>\n<p>Hibernate\u662f\u4e00\u500b\u6d41\u884c\u7684ORM\u6846\u67b6\uff0c\u63d0\u4f9b\u4e86\u5c0d\u8c61\u8207\u6578\u64da\u5eab\u4e4b\u9593\u7684\u6620\u5c04\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Hibernate\u9032\u884c\u57fa\u672c\u64cd\u4f5c\u7684\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li>\u914d\u7f6eHibernate<\/li>\n<li>\u5275\u5efa\u5be6\u9ad4\u985e<\/li>\n<li>\u4f7f\u7528Session\u9032\u884c\u6578\u64da\u64cd\u4f5c<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Hibernate\u793a\u4f8b\uff1a<\/p>\n<pre><code>import org.hibernate.Session;\nimport org.hibernate.SessionFactory;\nimport org.hibernate.cfg.Configuration;\n\npublic class HibernateExample {\n    public static void main(String[] args) {\n        \/\/ \u5275\u5efaSessionFactory\n        SessionFactory factory = new Configuration()\n                .configure(\"hibernate.cfg.xml\")\n                .addAnnotatedClass(User.class)\n                .buildSessionFactory();\n\n        \/\/ \u5275\u5efaSession\n        Session session = factory.getCurrentSession();\n\n        try {\n            \/\/ \u958b\u59cb\u4e8b\u52d9\n            session.beginTransaction();\n            \/\/ \u5275\u5efa\u4e00\u500b\u65b0\u7528\u6236\n            User newUser = new User(\"john_doe\", \"password123\");\n            \/\/ \u4fdd\u5b58\u7528\u6236\n            session.save(newUser);\n            \/\/ \u63d0\u4ea4\u4e8b\u52d9\n            session.getTransaction().commit();\n        } finally {\n            factory.close();\n        }\n    }\n}\n<\/code><\/pre>\n<h2 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id=\"%e7%b5%90%e8%ab%96-yiHpaUXtbA\">\u7d50\u8ad6<\/h2>\n<p>\u5229\u7528Java\u6280\u8853\u69cb\u5efa\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u958b\u767c\u6548\u7387\uff0c\u9084\u80fd\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u3002\u901a\u904e\u4f7f\u7528JDBC\u6216ORM\u6846\u67b6\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u8f15\u9b06\u5730\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\uff0c\u4e26\u5c08\u6ce8\u65bc\u696d\u52d9\u908f\u8f2f\u7684\u5be6\u73fe\u3002\u540c\u6642\uff0c\u901a\u904e\u6027\u80fd\u512a\u5316\u6280\u5de7\uff0c\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u5347\u7cfb\u7d71\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684Java\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528JAVA\u6280\u8853\u6253\u9020\u9ad8\u6548\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u80fd\u529b\uff0c\u5be6\u73fe\u7a69\u5b9a\u53ef\u9760\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-167017","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167017","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=167017"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167017\/revisions"}],"predecessor-version":[{"id":167018,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167017\/revisions\/167018"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=167017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=167017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=167017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}