{"id":61905,"date":"2024-10-13T14:37:17","date_gmt":"2024-10-13T06:37:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61905\/"},"modified":"2024-10-13T14:37:17","modified_gmt":"2024-10-13T06:37:17","slug":"java%e5%ae%9a%e6%99%82%e5%90%8c%e6%ad%a5%ef%bc%8c%e6%95%b8%e6%93%9a%e5%85%a7%e5%ae%b9%e7%84%a1%e6%86%82%ef%bc%81-java%e5%ae%9a%e6%99%82%e5%90%8c%e6%ad%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61905\/","title":{"rendered":"Java\u5b9a\u6642\u540c\u6b65\uff0c\u6578\u64da\u5167\u5bb9\u7121\u6182\uff01 (java\u5b9a\u6642\u540c\u6b65\u6578\u64da\u5eab\u6578\u64da)"},"content":{"rendered":"<h1 id=\"java%e5%ae%9a%e6%99%82%e5%90%8c%e6%ad%a5%ef%bc%8c%e6%95%b8%e6%93%9a%e5%85%a7%e5%ae%b9%e7%84%a1%e6%86%82%ef%bc%81-KTFCnlwlTw\">Java\u5b9a\u6642\u540c\u6b65\uff0c\u6578\u64da\u5167\u5bb9\u7121\u6182\uff01<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u53ca\u6642\u6027\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0c\u8d8a\u4f86\u8d8a\u591a\u7684\u4f01\u696d\u9078\u64c7\u4f7f\u7528Java\u9032\u884c\u6578\u64da\u5eab\u7684\u5b9a\u6642\u540c\u6b65\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0eJava\u5b9a\u6642\u540c\u6b65\u6578\u64da\u5eab\u6578\u64da\u7684\u57fa\u672c\u6982\u5ff5\u3001\u5be6\u73fe\u65b9\u6cd5\u53ca\u5176\u512a\u52e2\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afjava%e5%ae%9a%e6%99%82%e5%90%8c%e6%ad%a5%ef%bc%9f-KTFCnlwlTw\">\u4ec0\u9ebc\u662fJava\u5b9a\u6642\u540c\u6b65\uff1f<\/h2>\n<p>Java\u5b9a\u6642\u540c\u6b65\u662f\u6307\u4f7f\u7528Java\u7de8\u7a0b\u8a9e\u8a00\u5b9a\u671f\u81ea\u52d5\u5730\u5c07\u6578\u64da\u5f9e\u4e00\u500b\u6578\u64da\u5eab\u540c\u6b65\u5230\u53e6\u4e00\u500b\u6578\u64da\u5eab\u7684\u904e\u7a0b\u3002\u9019\u4e00\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u5230\u6578\u64da\u7684\u63d0\u53d6\u3001\u8f49\u63db\u548c\u52a0\u8f09\uff08ETL\uff09\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u5728\u4e0d\u540c\u7cfb\u7d71\u4e4b\u9593\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e5%ae%9a%e6%99%82%e5%90%8c%e6%ad%a5%ef%bc%9f-KTFCnlwlTw\">\u70ba\u4ec0\u9ebc\u9700\u8981\u5b9a\u6642\u540c\u6b65\uff1f<\/h2>\n<ul>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u5728\u591a\u500b\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u53ef\u80fd\u6703\u56e0\u70ba\u4e0d\u540c\u7684\u64cd\u4f5c\u800c\u51fa\u73fe\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002\u5b9a\u6642\u540c\u6b65\u53ef\u4ee5\u78ba\u4fdd\u6240\u6709\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u4fdd\u6301\u4e00\u81f4\u3002<\/li>\n<li><strong>\u6578\u64da\u5099\u4efd\uff1a<\/strong>\u5b9a\u671f\u540c\u6b65\u6578\u64da\u53ef\u4ee5\u4f5c\u70ba\u4e00\u7a2e\u5099\u4efd\u7b56\u7565\uff0c\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u6548\u7387\uff1a<\/strong>\u81ea\u52d5\u5316\u7684\u6578\u64da\u540c\u6b65\u904e\u7a0b\u53ef\u4ee5\u6e1b\u5c11\u4eba\u5de5\u64cd\u4f5c\u7684\u932f\u8aa4\uff0c\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%bejava%e5%ae%9a%e6%99%82%e5%90%8c%e6%ad%a5%ef%bc%9f-KTFCnlwlTw\">\u5982\u4f55\u5be6\u73feJava\u5b9a\u6642\u540c\u6b65\uff1f<\/h2>\n<p>\u5be6\u73feJava\u5b9a\u6642\u540c\u6b65\u7684\u904e\u7a0b\u53ef\u4ee5\u5206\u70ba\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-KTFCnlwlTw\">1. \u8a2d\u7f6e\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u9996\u5148\uff0c\u9700\u8981\u8a2d\u7f6e\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u53ef\u4ee5\u4f7f\u7528JDBC\uff08Java Database Connectivity\uff09\u4f86\u9023\u63a5\u4e0d\u540c\u985e\u578b\u7684\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\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 getConnection() throws SQLException {\n        String url = \"jdbc:mysql:\/\/localhost:3306\/your_database\";\n        String user = \"your_username\";\n        String password = \"your_password\";\n        return DriverManager.getConnection(url, user, password);\n    }\n}\n<\/code><\/pre>\n<h3 id=\"2-%e7%b7%a8%e5%af%ab%e6%95%b8%e6%93%9a%e5%90%8c%e6%ad%a5%e9%82%8f%e8%bc%af-KTFCnlwlTw\">2. \u7de8\u5beb\u6578\u64da\u540c\u6b65\u908f\u8f2f<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u9700\u8981\u7de8\u5beb\u6578\u64da\u540c\u6b65\u7684\u908f\u8f2f\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u5f9e\u6e90\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6578\u64da\uff0c\u7136\u5f8c\u5c07\u5176\u63d2\u5165\u5230\u76ee\u6a19\u6578\u64da\u5eab\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u6578\u64da\u540c\u6b65\u793a\u4f8b\uff1a<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.PreparedStatement;\nimport java.sql.ResultSet;\n\npublic class DataSync {\n    public void syncData() {\n        try (Connection sourceConn = DatabaseConnection.getConnection();\n             Connection targetConn = DatabaseConnection.getConnection()) {\n\n            String selectSQL = \"SELECT * FROM source_table\";\n            PreparedStatement selectStmt = sourceConn.prepareStatement(selectSQL);\n            ResultSet resultSet = selectStmt.executeQuery();\n\n            String insertSQL = \"INSERT INTO target_table (column1, column2) VALUES (?, ?)\";\n            PreparedStatement insertStmt = targetConn.prepareStatement(insertSQL);\n\n            while (resultSet.next()) {\n                insertStmt.setString(1, resultSet.getString(\"column1\"));\n                insertStmt.setString(2, resultSet.getString(\"column2\"));\n                insertStmt.executeUpdate();\n            }\n        } catch (SQLException e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h3 id=\"3-%e8%a8%ad%e7%bd%ae%e5%ae%9a%e6%99%82%e4%bb%bb%e5%8b%99-KTFCnlwlTw\">3. \u8a2d\u7f6e\u5b9a\u6642\u4efb\u52d9<\/h3>\n<p>\u6700\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528Java\u7684\u5b9a\u6642\u4efb\u52d9\u4f86\u5b9a\u671f\u57f7\u884c\u6578\u64da\u540c\u6b65\u3002\u53ef\u4ee5\u4f7f\u7528ScheduledExecutorService\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>import java.util.concurrent.Executors;\nimport java.util.concurrent.ScheduledExecutorService;\nimport java.util.concurrent.TimeUnit;\n\npublic class Scheduler {\n    public static void main(String[] args) {\n        ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);\n        DataSync dataSync = new DataSync();\n\n        scheduler.scheduleAtFixedRate(dataSync::syncData, 0, 1, TimeUnit.HOURS);\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-KTFCnlwlTw\">\u7d50\u8ad6<\/h2>\n<p>Java\u5b9a\u6642\u540c\u6b65\u6578\u64da\u5eab\u6578\u64da\u662f\u4e00\u500b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f01\u696d\u4fdd\u6301\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u3002\u901a\u904e\u8a2d\u7f6e\u81ea\u52d5\u5316\u7684\u6578\u64da\u540c\u6b65\u904e\u7a0b\uff0c\u4f01\u696d\u53ef\u4ee5\u6e1b\u5c11\u4eba\u5de5\u932f\u8aa4\uff0c\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\uff0c\u4e26\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u53ef\u9760\u6027\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u904b\u884c\u548c\u5feb\u901f\u97ff\u61c9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528Java\u5b9a\u6642\u540c\u6b65\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u6578\u64da\u6e96\u78ba\u7121\u8aa4\uff0c\u5be6\u73fe\u9ad8\u6548\u6578\u64da\u7ba1\u7406\uff0c\u8b93\u60a8\u7684\u6578\u64da\u5167\u5bb9\u7121\u6182\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-61905","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61905","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=61905"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61905\/revisions"}],"predecessor-version":[{"id":61906,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61905\/revisions\/61906"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}