{"id":61895,"date":"2024-10-13T14:32:19","date_gmt":"2024-10-13T06:32:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61895\/"},"modified":"2024-10-13T14:32:19","modified_gmt":"2024-10-13T06:32:19","slug":"java%e5%88%9d%e5%a7%8b%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%8c%e8%ae%93%e4%bd%a0%e7%9a%84%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e6%9b%b4%e5%8a%a0%e9%ab%98%e6%95%88%e3%80%81%e5%81%a5%e5%a3%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61895\/","title":{"rendered":"Java\u521d\u59cb\u5316\u6578\u64da\u5eab\uff0c\u8b93\u4f60\u7684\u6578\u64da\u5b58\u5132\u66f4\u52a0\u9ad8\u6548\u3001\u5065\u58ef\uff01 (java\u521d\u59cb\u5316\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"java%e5%88%9d%e5%a7%8b%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%8c%e8%ae%93%e4%bd%a0%e7%9a%84%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e6%9b%b4%e5%8a%a0%e9%ab%98%e6%95%88%e3%80%81%e5%81%a5%e5%a3%af-eIkYSWNxpr\">Java\u521d\u59cb\u5316\u6578\u64da\u5eab\uff0c\u8b93\u4f60\u7684\u6578\u64da\u5b58\u5132\u66f4\u52a0\u9ad8\u6548\u3001\u5065\u58ef\uff01<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u521d\u59cb\u5316\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002Java\u4f5c\u70ba\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u521d\u59cb\u5316\u6578\u64da\u5eab\uff0c\u5f9e\u800c\u78ba\u4fdd\u6578\u64da\u5b58\u5132\u7684\u9ad8\u6548\u6027\u548c\u5065\u58ef\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0eJava\u521d\u59cb\u5316\u6578\u64da\u5eab\u7684\u6700\u4f73\u5be6\u8e10\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e5%88%9d%e5%a7%8b%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-eIkYSWNxpr\">\u70ba\u4ec0\u9ebc\u9700\u8981\u521d\u59cb\u5316\u6578\u64da\u5eab\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u521d\u59cb\u5316\u662f\u6307\u5728\u61c9\u7528\u7a0b\u5e8f\u555f\u52d5\u6642\uff0c\u6839\u64da\u9700\u6c42\u5275\u5efa\u548c\u914d\u7f6e\u6578\u64da\u5eab\u7d50\u69cb\u53ca\u521d\u59cb\u6578\u64da\u3002\u9019\u4e00\u904e\u7a0b\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u555f\u52d5\u901f\u5ea6\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u521d\u59cb\u5316\u6578\u64da\u5eab\u7684\u4e3b\u8981\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u901a\u904e\u9810\u5148\u52a0\u8f09\u5fc5\u8981\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u6e1b\u5c11\u61c9\u7528\u7a0b\u5e8f\u904b\u884c\u6642\u7684\u67e5\u8a62\u8ca0\u64d4\u3002<\/li>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u78ba\u4fdd\u6240\u6709\u7528\u6236\u5728\u4f7f\u7528\u61c9\u7528\u7a0b\u5e8f\u6642\u90fd\u80fd\u7372\u5f97\u76f8\u540c\u7684\u6578\u64da\u8996\u5716\u3002<\/li>\n<li><strong>\u7c21\u5316\u958b\u767c\u6d41\u7a0b\uff1a<\/strong>\u5728\u958b\u767c\u548c\u6e2c\u8a66\u968e\u6bb5\uff0c\u5feb\u901f\u91cd\u7f6e\u6578\u64da\u5eab\u72c0\u614b\u53ef\u4ee5\u63d0\u9ad8\u958b\u767c\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"java%e4%b8%ad%e5%88%9d%e5%a7%8b%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%ad%a5%e9%a9%9f-eIkYSWNxpr\">Java\u4e2d\u521d\u59cb\u5316\u6578\u64da\u5eab\u7684\u6b65\u9a5f<\/h2>\n<p>\u5728Java\u4e2d\u521d\u59cb\u5316\u6578\u64da\u5eab\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab-eIkYSWNxpr\">1. \u9023\u63a5\u6578\u64da\u5eab<\/h3>\n<p>\u9996\u5148\uff0c\u9700\u8981\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u9019\u53ef\u4ee5\u901a\u904eJDBC\uff08Java Database Connectivity\uff09\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u9023\u63a5\u793a\u4f8b\uff1a<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.SQLException;\n\npublic class DatabaseConnection {\n    public static Connection connect() {\n        String url = \"jdbc:mysql:\/\/localhost:3306\/your_database\";\n        String user = \"your_username\";\n        String password = \"your_password\";\n        Connection conn = null;\n        try {\n            conn = DriverManager.getConnection(url, user, password);\n        } catch (SQLException e) {\n            System.out.println(e.getMessage());\n        }\n        return conn;\n    }\n}\n<\/code><\/pre>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e8%a1%a8-eIkYSWNxpr\">2. \u5275\u5efa\u6578\u64da\u8868<\/h3>\n<p>\u9023\u63a5\u6210\u529f\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528SQL\u8a9e\u53e5\u5275\u5efa\u6578\u64da\u8868\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5275\u5efa\u7528\u6236\u8868\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.Statement;\n\npublic class CreateTable {\n    public static void createUserTable(Connection conn) {\n        String sql = \"CREATE TABLE IF NOT EXISTS users (\" +\n                     \"id INT AUTO_INCREMENT PRIMARY KEY,\" +\n                     \"name VARCHAR(100) NOT NULL,\" +\n                     \"email VARCHAR(100) NOT NULL UNIQUE\" +\n                     \");\";\n        try (Statement stmt = conn.createStatement()) {\n            stmt.execute(sql);\n        } catch (SQLException e) {\n            System.out.println(e.getMessage());\n        }\n    }\n}\n<\/code><\/pre>\n<h3 id=\"3-%e6%8f%92%e5%85%a5%e5%88%9d%e5%a7%8b%e6%95%b8%e6%93%9a-eIkYSWNxpr\">3. \u63d2\u5165\u521d\u59cb\u6578\u64da<\/h3>\n<p>\u5275\u5efa\u8868\u5f8c\uff0c\u53ef\u4ee5\u63d2\u5165\u4e00\u4e9b\u521d\u59cb\u6578\u64da\u4ee5\u4fbf\u65bc\u6e2c\u8a66\u548c\u958b\u767c\uff1a<\/p>\n<pre><code>public class InsertInitialData {\n    public static void insertData(Connection conn) {\n        String sql = \"INSERT INTO users (name, email) VALUES ('Alice', 'alice@example.com'),\" +\n                     \"('Bob', 'bob@example.com');\";\n        try (Statement stmt = conn.createStatement()) {\n            stmt.executeUpdate(sql);\n        } catch (SQLException e) {\n            System.out.println(e.getMessage());\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-eIkYSWNxpr\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u521d\u59cb\u5316\u6578\u64da\u5eab\u6642\uff0c\u9075\u5faa\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u548c\u7a69\u5b9a\u6027\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u4e8b\u52d9\uff1a<\/strong>\u5728\u57f7\u884c\u591a\u500bSQL\u64cd\u4f5c\u6642\uff0c\u4f7f\u7528\u4e8b\u52d9\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>\u932f\u8aa4\u8655\u7406\uff1a<\/strong>\u59a5\u5584\u8655\u7406SQL\u7570\u5e38\uff0c\u907f\u514d\u61c9\u7528\u7a0b\u5e8f\u5d29\u6f70\u3002<\/li>\n<li><strong>\u914d\u7f6e\u6587\u4ef6\u7ba1\u7406\uff1a<\/strong>\u5c07\u6578\u64da\u5eab\u9023\u63a5\u4fe1\u606f\u5b58\u5132\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u907f\u514d\u786c\u7de8\u78bc\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-eIkYSWNxpr\">\u7e3d\u7d50<\/h2>\n<p>Java\u521d\u59cb\u5316\u6578\u64da\u5eab\u662f\u4e00\u500b\u95dc\u9375\u7684\u6b65\u9a5f\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u901a\u904e\u6b63\u78ba\u7684\u9023\u63a5\u3001\u5275\u5efa\u8868\u548c\u63d2\u5165\u521d\u59cb\u6578\u64da\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5b58\u5132\u7684\u9ad8\u6548\u6027\u548c\u5065\u58ef\u6027\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u96f2\u74b0\u5883\u4e2d\u90e8\u7f72\u548c\u7ba1\u7406\u6578\u64da\u5eab\uff0c\u8acb\u53c3\u8003\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7a69\u5b9a\u7684\u57fa\u790e\u8a2d\u65bd\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Java\u521d\u59cb\u5316\u6578\u64da\u5eab\uff0c\u63d0\u5347\u6578\u64da\u5b58\u5132\u7684\u6548\u7387\u8207\u7a69\u5b9a\u6027\uff0c\u6253\u9020\u66f4\u5065\u58ef\u7684\u61c9\u7528\u7a0b\u5f0f\uff01<\/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-61895","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61895","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=61895"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61895\/revisions"}],"predecessor-version":[{"id":61896,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61895\/revisions\/61896"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61895"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}