{"id":62003,"date":"2024-10-13T15:26:16","date_gmt":"2024-10-13T07:26:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62003\/"},"modified":"2024-10-13T15:26:16","modified_gmt":"2024-10-13T07:26:16","slug":"java%e5%af%a6%e7%8f%beoracle%e8%b7%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%8a%80%e5%b7%a7-java-oracle%e8%b7%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62003\/","title":{"rendered":"Java\u5be6\u73feOracle\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u7684\u6280\u5de7 (java oracle\u8de8\u6578\u64da\u5eab\u67e5\u8a62)"},"content":{"rendered":"<h1 id=\"java%e5%af%a6%e7%8f%beoracle%e8%b7%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%8a%80%e5%b7%a7-VgGhVGsGYf\">Java\u5be6\u73feOracle\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u7684\u6280\u5de7<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u7684\u9700\u6c42\u65e5\u76ca\u589e\u52a0\u3002\u5c24\u5176\u662f\u5728\u4f7f\u7528Oracle\u6578\u64da\u5eab\u7684\u74b0\u5883\u4e2d\uff0c\u958b\u767c\u8005\u7d93\u5e38\u9700\u8981\u5f9e\u4e0d\u540c\u7684\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Java\u5be6\u73feOracle\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u7684\u6280\u5de7\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e8%b7%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-VgGhVGsGYf\">\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u662f\u6307\u5728\u4e00\u500b\u67e5\u8a62\u4e2d\u540c\u6642\u8a2a\u554f\u591a\u500b\u6578\u64da\u5eab\u7684\u6578\u64da\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u4e0d\u540c\u7684\u6578\u64da\u6e90\uff0c\u53ef\u80fd\u662f\u4e0d\u540c\u7684Oracle\u6578\u64da\u5eab\uff0c\u6216\u8005\u662f\u5176\u4ed6\u985e\u578b\u7684\u6578\u64da\u5eab\u3002\u9019\u7a2e\u67e5\u8a62\u7684\u4e3b\u8981\u6311\u6230\u5728\u65bc\u5982\u4f55\u6709\u6548\u5730\u9023\u63a5\u548c\u7ba1\u7406\u9019\u4e9b\u6578\u64da\u6e90\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8java%e9%80%a3%e6%8e%a5oracle%e6%95%b8%e6%93%9a%e5%ba%ab-VgGhVGsGYf\">\u4f7f\u7528Java\u9023\u63a5Oracle\u6578\u64da\u5eab<\/h2>\n<p>\u5728Java\u4e2d\uff0c\u9023\u63a5Oracle\u6578\u64da\u5eab\u901a\u5e38\u4f7f\u7528JDBC\uff08Java Database Connectivity\uff09\u3002\u4ee5\u4e0b\u662f\u9023\u63a5Oracle\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.SQLException;\n\npublic class OracleConnection {\n    public static Connection getConnection() {\n        Connection connection = null;\n        try {\n            Class.forName(\"oracle.jdbc.driver.OracleDriver\");\n            connection = DriverManager.getConnection(\"jdbc:oracle:thin:@\/\/host:port\/service\", \"username\", \"password\");\n        } catch (ClassNotFoundException | SQLException e) {\n            e.printStackTrace();\n        }\n        return connection;\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8dblink%e9%80%b2%e8%a1%8c%e8%b7%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2-VgGhVGsGYf\">\u4f7f\u7528DBLINK\u9032\u884c\u8de8\u6578\u64da\u5eab\u67e5\u8a62<\/h2>\n<p>\u5728Oracle\u4e2d\uff0cDBLINK\uff08Database Link\uff09\u662f\u4e00\u7a2e\u975e\u5e38\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u5be6\u73fe\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u3002DBLINK\u5141\u8a31\u7528\u6236\u5728\u4e00\u500b\u6578\u64da\u5eab\u4e2d\u8a2a\u554f\u53e6\u4e00\u500b\u6578\u64da\u5eab\u7684\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u5275\u5efaDBLINK\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>CREATE DATABASE LINK link_name\nCONNECT TO remote_user IDENTIFIED BY 'remote_password'\nUSING 'remote_database';\n<\/code><\/pre>\n<p>\u4e00\u65e6\u5275\u5efa\u4e86DBLINK\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u5b83\u4f86\u57f7\u884c\u67e5\u8a62\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * FROM table_name@link_name;\n<\/code><\/pre>\n<h2 id=\"java%e4%b8%ad%e4%bd%bf%e7%94%a8dblink%e7%9a%84%e7%a4%ba%e4%be%8b-VgGhVGsGYf\">Java\u4e2d\u4f7f\u7528DBLINK\u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Java\u548cDBLINK\u9032\u884c\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class CrossDatabaseQuery {\n    public static void main(String[] args) {\n        Connection connection = OracleConnection.getConnection();\n        try {\n            Statement statement = connection.createStatement();\n            String query = \"SELECT * FROM employees@remote_db_link\";\n            ResultSet resultSet = statement.executeQuery(query);\n            while (resultSet.next()) {\n                System.out.println(\"Employee ID: \" + resultSet.getInt(\"employee_id\"));\n                System.out.println(\"Employee Name: \" + resultSet.getString(\"employee_name\"));\n            }\n        } catch (SQLException e) {\n            e.printStackTrace();\n        } finally {\n            try {\n                if (connection != null) connection.close();\n            } catch (SQLException e) {\n                e.printStackTrace();\n            }\n        }\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-VgGhVGsGYf\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u6027\u80fd\u8003\u91cf\uff1a<\/strong>\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u91cf\u8f03\u5927\u7684\u60c5\u6cc1\u4e0b\u3002\u56e0\u6b64\uff0c\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u78ba\u4fddDBLINK\u7684\u5b89\u5168\u6027\uff0c\u907f\u514d\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u3002<\/li>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u5728\u9032\u884c\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u6642\uff0c\u9700\u8003\u616e\u6578\u64da\u7684\u4e00\u81f4\u6027\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VgGhVGsGYf\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Java\u5be6\u73feOracle\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u5730\u6574\u5408\u4f86\u81ea\u4e0d\u540c\u6578\u64da\u6e90\u7684\u4fe1\u606f\u3002\u901a\u904e\u4f7f\u7528DBLINK\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u8a2a\u554f\u548c\u67e5\u8a62\u5176\u4ed6\u6578\u64da\u5eab\u7684\u6578\u64da\u3002\u7136\u800c\uff0c\u5728\u5be6\u65bd\u9019\u4e9b\u6280\u8853\u6642\uff0c\u5fc5\u9808\u8003\u616e\u6027\u80fd\u3001\u5b89\u5168\u6027\u548c\u6578\u64da\u4e00\u81f4\u6027\u7b49\u56e0\u7d20\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Java\u5be6\u73feOracle\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u7684\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u6574\u5408\u6548\u7387\uff0c\u7c21\u5316\u591a\u6578\u64da\u6e90\u64cd\u4f5c\uff0c\u52a9\u529b\u696d\u52d9\u6c7a\u7b56\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-62003","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62003","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=62003"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62003\/revisions"}],"predecessor-version":[{"id":62004,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62003\/revisions\/62004"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62003"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62003"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62003"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}