{"id":61999,"date":"2024-10-13T15:25:00","date_gmt":"2024-10-13T07:25:00","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61999\/"},"modified":"2024-10-13T15:25:00","modified_gmt":"2024-10-13T07:25:00","slug":"java%e5%af%a6%e7%8f%be%ef%bc%9a%e5%be%9e%e6%95%b8%e6%93%9a%e5%ba%ab%e8%ae%80%e5%8f%96%e6%95%b8%e6%93%9a%e4%b8%a6%e8%b3%a6%e5%80%bc%e7%b5%a6%e6%95%b8%e7%b5%84-java%e6%95%b8%e6%93%9a%e5%ba%ab%e8%b3%a6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61999\/","title":{"rendered":"Java\u5be6\u73fe\uff1a\u5f9e\u6578\u64da\u5eab\u8b80\u53d6\u6578\u64da\u4e26\u8ce6\u503c\u7d66\u6578\u7d44 (java\u6578\u64da\u5eab\u8ce6\u503c\u7d66\u6578\u7d44)"},"content":{"rendered":"<h1 id=\"java%e5%af%a6%e7%8f%be%ef%bc%9a%e5%be%9e%e6%95%b8%e6%93%9a%e5%ba%ab%e8%ae%80%e5%8f%96%e6%95%b8%e6%93%9a%e4%b8%a6%e8%b3%a6%e5%80%bc%e7%b5%a6%e6%95%b8%e7%b5%84-PfrZacKWrS\">Java\u5be6\u73fe\uff1a\u5f9e\u6578\u64da\u5eab\u8b80\u53d6\u6578\u64da\u4e26\u8ce6\u503c\u7d66\u6578\u7d44<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002Java\u4f5c\u70ba\u4e00\u7a2e\u5f37\u5927\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u5f0f\u4f86\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Java\u5f9e\u6578\u64da\u5eab\u4e2d\u8b80\u53d6\u6578\u64da\u4e26\u5c07\u5176\u8ce6\u503c\u7d66\u6578\u7d44\uff0c\u9019\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\u662f\u4e00\u9805\u57fa\u672c\u800c\u91cd\u8981\u7684\u6280\u80fd\u3002<\/p>\n<h2 id=\"%e6%ba%96%e5%82%99%e5%b7%a5%e4%bd%9c-PfrZacKWrS\">\u6e96\u5099\u5de5\u4f5c<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u5df2\u7d93\u5b89\u88dd\u4e86Java\u958b\u767c\u74b0\u5883\uff08JDK\uff09\u548c\u4e00\u500b\u6578\u64da\u5eab\uff08\u5982MySQL\uff09\u3002\u6b64\u5916\uff0c\u60a8\u9084\u9700\u8981\u76f8\u61c9\u7684JDBC\u9a45\u52d5\u7a0b\u5e8f\uff0c\u4ee5\u4fbfJava\u80fd\u5920\u8207\u6578\u64da\u5eab\u9032\u884c\u901a\u4fe1\u3002<\/p>\n<h3 id=\"%e5%bb%ba%e7%ab%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-PfrZacKWrS\">\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u9023\u63a5MySQL\u6578\u64da\u5eab\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    public static Connection getConnection() {\n        Connection connection = null;\n        try {\n            String url = \"jdbc:mysql:\/\/localhost:3306\/your_database\";\n            String user = \"your_username\";\n            String password = \"your_password\";\n            connection = DriverManager.getConnection(url, user, password);\n        } catch (SQLException e) {\n            e.printStackTrace();\n        }\n        return connection;\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e5%be%9e%e6%95%b8%e6%93%9a%e5%ba%ab%e8%ae%80%e5%8f%96%e6%95%b8%e6%93%9a-PfrZacKWrS\">\u5f9e\u6578\u64da\u5eab\u8b80\u53d6\u6578\u64da<\/h2>\n<p>\u4e00\u65e6\u5efa\u7acb\u4e86\u9023\u63a5\uff0c\u6211\u5011\u5c31\u53ef\u4ee5\u5f9e\u6578\u64da\u5eab\u4e2d\u8b80\u53d6\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5f9e\u6578\u64da\u5eab\u4e2d\u67e5\u8a62\u6578\u64da\u4e26\u5c07\u5176\u8ce6\u503c\u7d66\u6578\u7d44\uff1a<\/p>\n<pre><code>import java.sql.Connection;\nimport java.sql.ResultSet;\nimport java.sql.SQLException;\nimport java.sql.Statement;\n\npublic class ReadData {\n    public static void main(String[] args) {\n        Connection connection = DatabaseConnection.getConnection();\n        String query = \"SELECT column_name FROM your_table\";\n        \n        try {\n            Statement statement = connection.createStatement();\n            ResultSet resultSet = statement.executeQuery(query);\n            \n            \/\/ \u5047\u8a2d\u6211\u5011\u77e5\u9053\u7d50\u679c\u96c6\u7684\u5927\u5c0f\n            int size = 10; \/\/ \u9019\u88e1\u53ef\u4ee5\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u8abf\u6574\n            String[] dataArray = new String[size];\n            int index = 0;\n            \n            while (resultSet.next()) {\n                dataArray[index] = resultSet.getString(\"column_name\");\n                index++;\n            }\n            \n            \/\/ \u8f38\u51fa\u6578\u7d44\u5167\u5bb9\n            for (String data : dataArray) {\n                System.out.println(data);\n            }\n            \n        } catch (SQLException e) {\n            e.printStackTrace();\n        } finally {\n            try {\n                if (connection != null) {\n                    connection.close();\n                }\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-PfrZacKWrS\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u78ba\u4fdd\u6578\u64da\u5eab\u9023\u63a5\u4fe1\u606f\u6b63\u78ba\u7121\u8aa4\u3002<\/li>\n<li>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u5efa\u8b70\u4f7f\u7528\u52d5\u614b\u6578\u7d44\uff08\u5982ArrayList\uff09\u4f86\u8655\u7406\u4e0d\u78ba\u5b9a\u5927\u5c0f\u7684\u7d50\u679c\u96c6\u3002<\/li>\n<li>\u8a18\u5f97\u8655\u7406\u7570\u5e38\u60c5\u6cc1\uff0c\u4ee5\u907f\u514d\u7a0b\u5e8f\u5d29\u6f70\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PfrZacKWrS\">\u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528Java\u5f9e\u6578\u64da\u5eab\u4e2d\u8b80\u53d6\u6578\u64da\u4e26\u5c07\u5176\u8ce6\u503c\u7d66\u6578\u7d44\u3002\u9019\u4e00\u904e\u7a0b\u6d89\u53ca\u5230\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5\u3001\u57f7\u884c\u67e5\u8a62\u4ee5\u53ca\u8655\u7406\u7d50\u679c\u96c6\u3002\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u6280\u80fd\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u5011\u662f\u69cb\u5efa\u6578\u64da\u9a45\u52d5\u61c9\u7528\u7a0b\u5e8f\u7684\u57fa\u790e\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\u652f\u6301\u60a8\u7684Java\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u90e8\u7f72\u60a8\u7684\u670d\u52d9\u5668\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Java\u5f9e\u6578\u64da\u5eab\u8b80\u53d6\u6578\u64da\u4e26\u5c07\u5176\u8ce6\u503c\u7d66\u6578\u7d44\uff0c\u7c21\u5316\u6578\u64da\u8655\u7406\u548c\u7ba1\u7406\u7684\u904e\u7a0b\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-61999","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61999","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=61999"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61999\/revisions"}],"predecessor-version":[{"id":62000,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61999\/revisions\/62000"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}