{"id":61889,"date":"2024-10-13T14:28:16","date_gmt":"2024-10-13T06:28:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61889\/"},"modified":"2024-10-13T14:28:16","modified_gmt":"2024-10-13T06:28:16","slug":"java%e7%a8%8b%e5%ba%8f%e5%af%a6%e7%8f%beatm%e8%88%87%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%ae%8c%e7%be%8e%e7%b5%90%e5%90%88-java%e7%a8%8b%e5%ba%8fatm%e5%8a%a0%e5%85%a5%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61889\/","title":{"rendered":"Java\u7a0b\u5e8f\u5be6\u73feATM\u8207\u6578\u64da\u5eab\u7684\u5b8c\u7f8e\u7d50\u5408 (java\u7a0b\u5e8fatm\u52a0\u5165\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"java%e7%a8%8b%e5%ba%8f%e5%af%a6%e7%8f%beatm%e8%88%87%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%ae%8c%e7%be%8e%e7%b5%90%e5%90%88-iSPGcSUcPV\">Java\u7a0b\u5e8f\u5be6\u73feATM\u8207\u6578\u64da\u5eab\u7684\u5b8c\u7f8e\u7d50\u5408<\/h1>\n<p>\u5728\u73fe\u4ee3\u91d1\u878d\u7cfb\u7d71\u4e2d\uff0c\u81ea\u52d5\u6ac3\u54e1\u6a5f\uff08ATM\uff09\u5df2\u6210\u70ba\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0cATM\u7684\u529f\u80fd\u4e0d\u65b7\u589e\u5f37\uff0c\u4e26\u4e14\u8207\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u7d50\u5408\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Java\u7a0b\u5e8f\u5be6\u73feATM\u8207\u6578\u64da\u5eab\u7684\u5b8c\u7f8e\u7d50\u5408\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"atm%e7%b3%bb%e7%b5%b1%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%9e%b6%e6%a7%8b-iSPGcSUcPV\">ATM\u7cfb\u7d71\u7684\u57fa\u672c\u67b6\u69cb<\/h2>\n<p>\u4e00\u500b\u5178\u578b\u7684ATM\u7cfb\u7d71\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u4e3b\u8981\u7d44\u4ef6\uff1a<\/p>\n<ul>\n<li>\u7528\u6236\u754c\u9762\uff1a\u7528\u65bc\u8207\u5ba2\u6236\u9032\u884c\u4ea4\u4e92\u7684\u754c\u9762\u3002<\/li>\n<li>\u696d\u52d9\u908f\u8f2f\uff1a\u8655\u7406\u7528\u6236\u8acb\u6c42\u7684\u6838\u5fc3\u908f\u8f2f\u3002<\/li>\n<li>\u6578\u64da\u5eab\uff1a\u5b58\u5132\u7528\u6236\u8cec\u6236\u4fe1\u606f\u548c\u4ea4\u6613\u8a18\u9304\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u7d44\u4ef6\u4e4b\u9593\u7684\u6709\u6548\u901a\u4fe1\u662f\u78ba\u4fddATM\u7cfb\u7d71\u6b63\u5e38\u904b\u884c\u7684\u95dc\u9375\u3002Java\u4f5c\u70ba\u4e00\u7a2e\u5f37\u5927\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u548c\u5eab\u4f86\u5be6\u73fe\u9019\u7a2e\u901a\u4fe1\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%81%b8%e6%93%87-iSPGcSUcPV\">\u6578\u64da\u5eab\u7684\u9078\u64c7<\/h2>\n<p>\u5728\u8a2d\u8a08ATM\u7cfb\u7d71\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u81f3\u95dc\u91cd\u8981\u3002\u5e38\u898b\u7684\u9078\u64c7\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>MySQL\uff1a\u958b\u6e90\u4e14\u529f\u80fd\u5f37\u5927\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u3002<\/li>\n<li>PostgreSQL\uff1a\u652f\u6301\u8907\u96dc\u67e5\u8a62\u548c\u4e8b\u52d9\u8655\u7406\u7684\u9ad8\u6027\u80fd\u6578\u64da\u5eab\u3002<\/li>\n<li>SQLite\uff1a\u8f15\u91cf\u7d1a\u7684\u5d4c\u5165\u5f0f\u6578\u64da\u5eab\uff0c\u9069\u5408\u5c0f\u578b\u61c9\u7528\u3002<\/li>\n<\/ul>\n<p>\u5728\u9019\u88e1\uff0c\u6211\u5011\u5c07\u4ee5MySQL\u70ba\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Java\u9023\u63a5\u6578\u64da\u5eab\u4e26\u57f7\u884c\u57fa\u672c\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"java%e9%80%a3%e6%8e%a5mysql%e6%95%b8%e6%93%9a%e5%ba%ab-iSPGcSUcPV\">Java\u9023\u63a5MySQL\u6578\u64da\u5eab<\/h2>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u5728Java\u9805\u76ee\u4e2d\u6dfb\u52a0MySQL\u9a45\u52d5\u7a0b\u5e8f\u3002\u53ef\u4ee5\u901a\u904eMaven\u6216\u624b\u52d5\u4e0b\u8f09JAR\u6587\u4ef6\u4f86\u5b8c\u6210\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528JDBC\u9023\u63a5MySQL\u7684\u57fa\u672c\u4ee3\u78bc\uff1a<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.SQLException;\n\npublic class DatabaseConnection {\n    private static final String URL = \"jdbc:mysql:\/\/localhost:3306\/atm_db\";\n    private static final String USER = \"root\";\n    private static final String PASSWORD = \"password\";\n\n    public static Connection getConnection() {\n        Connection connection = null;\n        try {\n            connection = DriverManager.getConnection(URL, USER, PASSWORD);\n            System.out.println(\"\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff01\");\n        } catch (SQLException e) {\n            e.printStackTrace();\n        }\n        return connection;\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e5%af%a6%e7%8f%be%e5%9f%ba%e6%9c%ac%e7%9a%84atm%e5%8a%9f%e8%83%bd-iSPGcSUcPV\">\u5be6\u73fe\u57fa\u672c\u7684ATM\u529f\u80fd<\/h2>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u5c07\u5be6\u73fe\u4e00\u4e9b\u57fa\u672c\u7684ATM\u529f\u80fd\uff0c\u4f8b\u5982\u67e5\u8a62\u9918\u984d\u548c\u63d0\u6b3e\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62\u9918\u984d\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.PreparedStatement;\nimport java.sql.ResultSet;\n\npublic class ATM {\n    public static void checkBalance(int accountId) {\n        Connection connection = DatabaseConnection.getConnection();\n        String query = \"SELECT balance FROM accounts WHERE account_id = ?\";\n        \n        try (PreparedStatement preparedStatement = connection.prepareStatement(query)) {\n            preparedStatement.setInt(1, accountId);\n            ResultSet resultSet = preparedStatement.executeQuery();\n            if (resultSet.next()) {\n                double balance = resultSet.getDouble(\"balance\");\n                System.out.println(\"\u60a8\u7684\u9918\u984d\u70ba\uff1a\" + balance);\n            } else {\n                System.out.println(\"\u8cec\u6236\u4e0d\u5b58\u5728\uff01\");\n            }\n        } catch (SQLException e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e5%ae%89%e5%85%a8%e6%80%a7%e8%80%83%e9%87%8f-iSPGcSUcPV\">\u5b89\u5168\u6027\u8003\u91cf<\/h2>\n<p>\u5728\u8a2d\u8a08ATM\u7cfb\u7d71\u6642\uff0c\u5b89\u5168\u6027\u662f\u5fc5\u9808\u8003\u616e\u7684\u91cd\u8981\u56e0\u7d20\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u52a0\u5bc6\u6280\u8853\u4fdd\u8b77\u7528\u6236\u6578\u64da\u3002<\/li>\n<li>\u5be6\u65bd\u591a\u56e0\u7d20\u8eab\u4efd\u9a57\u8b49\u4ee5\u589e\u5f37\u5b89\u5168\u6027\u3002<\/li>\n<li>\u5b9a\u671f\u66f4\u65b0\u548c\u7dad\u8b77\u6578\u64da\u5eab\u4ee5\u9632\u6b62\u5b89\u5168\u6f0f\u6d1e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-iSPGcSUcPV\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4f7f\u7528Java\u7a0b\u5e8f\u8207\u6578\u64da\u5eab\u7684\u7d50\u5408\uff0c\u6211\u5011\u53ef\u4ee5\u5be6\u73fe\u4e00\u500b\u529f\u80fd\u5f37\u5927\u4e14\u5b89\u5168\u7684ATM\u7cfb\u7d71\u3002\u9019\u7a2e\u7d50\u5408\u4e0d\u50c5\u63d0\u9ad8\u4e86\u7cfb\u7d71\u7684\u6548\u7387\uff0c\u9084\u589e\u5f37\u4e86\u7528\u6236\u9ad4\u9a57\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0c\u672a\u4f86\u7684ATM\u7cfb\u7d71\u5c07\u6703\u66f4\u52a0\u667a\u80fd\u5316\u548c\u81ea\u52d5\u5316\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u9999\u6e2f\u642d\u5efa\u81ea\u5df1\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u4f3a\u670d\u5668\u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528Java\u7a0b\u5e8f\u5be6\u73feATM\u7cfb\u7d71\u8207\u6578\u64da\u5eab\u7684\u5b8c\u7f8e\u7d50\u5408\uff0c\u63d0\u5347\u91d1\u878d\u4ea4\u6613\u7684\u5b89\u5168\u6027\u8207\u6548\u7387\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-61889","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61889","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=61889"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61889\/revisions"}],"predecessor-version":[{"id":61890,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61889\/revisions\/61890"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61889"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61889"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}