{"id":91754,"date":"2024-03-21T14:18:27","date_gmt":"2024-03-21T05:18:27","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/jdbc-%e3%81%ae%e3%83%a6%e3%83%bc%e3%83%86%e3%82%a3%e3%83%aa%e3%83%86%e3%82%a3-%e3%82%af%e3%83%a9%e3%82%b9%e3%82%92%e3%83%a9%e3%83%83%e3%83%94%e3%83%b3%e3%82%b0%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2024-04-04T20:32:35","modified_gmt":"2024-04-04T11:32:35","slug":"jdbc-%e3%81%ae%e3%83%a6%e3%83%bc%e3%83%86%e3%82%a3%e3%83%aa%e3%83%86%e3%82%a3-%e3%82%af%e3%83%a9%e3%82%b9%e3%82%92%e3%83%a9%e3%83%83%e3%83%94%e3%83%b3%e3%82%b0%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/jdbc-%e3%81%ae%e3%83%a6%e3%83%bc%e3%83%86%e3%82%a3%e3%83%aa%e3%83%86%e3%82%a3-%e3%82%af%e3%83%a9%e3%82%b9%e3%82%92%e3%83%a9%e3%83%83%e3%83%94%e3%83%b3%e3%82%b0%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"JDBC \u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3 \u30af\u30e9\u30b9\u3092\u30e9\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>JDBC\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30fc\u30af\u30e9\u30b9\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u304c\u3042\u308a\u307e\u3059\u30021. java.sql\u306a\u3069\u306eJDBC\u95a2\u9023\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3059\u30022. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3001Connection\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3059\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u306e\u9759\u7684\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u6210\u3057\u307e\u3059\u30023. Connection\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068SQL\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u6587\u5b57\u5217\u306e2\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d7\u3051\u4ed8\u3051\u308bSQL\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u5b9f\u884c\u3059\u308b\u9759\u7684\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u5185\u90e8\u3067\u306fStatement\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u4f5c\u6210\u3055\u308c\u3001\u3053\u308c\u3092\u4f7f\u7528\u3057\u3066SQL\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u5b9f\u884c\u3057\u3066\u304b\u3089ResultSet\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3057\u307e\u3059\u30024. Connection\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d7\u3051\u53d6\u308a\u3001\u305d\u306e\u63a5\u7d9a\u3092\u5185\u90e8\u7684\u306b\u9589\u3058\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3092\u9589\u3058\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u6210\u3057\u307e\u3059\u30025. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u4e0a\u8a18\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u3055\u308c\u305f\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u5358\u7d14\u306aJDBC\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30fc\u30af\u30e9\u30b9\u306e\u4f8b\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\">import\u00a0java.sql.Connection;\r\nimport\u00a0java.sql.DriverManager;\r\nimport\u00a0java.sql.ResultSet;\r\nimport\u00a0java.sql.SQLException;\r\nimport\u00a0java.sql.Statement;\r\npublic\u00a0class\u00a0JdbcUtils\u00a0{<\/pre>\n<p>public\u00a0static\u00a0Connection\u00a0getConnection(String\u00a0url,\u00a0String\u00a0username,\u00a0String\u00a0password)\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>Connection\u00a0connection\u00a0=\u00a0null;<\/p>\n<p>&nbsp;<\/p>\n<p>try\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>connection\u00a0=\u00a0DriverManager.getConnection(url,\u00a0username,\u00a0password);<\/p>\n<p>&nbsp;<\/p>\n<p>}\u00a0catch\u00a0(SQLException\u00a0e)\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>e.printStackTrace();<\/p>\n<p>&nbsp;<\/p>\n<p>}<\/p>\n<p>&nbsp;<\/p>\n<p>return\u00a0connection;<\/p>\n<p>&nbsp;<\/p>\n<p>}<\/p>\n<p>&nbsp;<\/p>\n<p>public\u00a0static\u00a0ResultSet\u00a0executeQuery(Connection\u00a0connection,\u00a0String\u00a0sql)\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>ResultSet\u00a0resultSet\u00a0=\u00a0null;<\/p>\n<p>&nbsp;<\/p>\n<p>try\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>Statement\u00a0statement\u00a0=\u00a0connection.createStatement();<\/p>\n<p>&nbsp;<\/p>\n<p>resultSet\u00a0=\u00a0statement.executeQuery(sql);<\/p>\n<p>&nbsp;<\/p>\n<p>}\u00a0catch\u00a0(SQLException\u00a0e)\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>e.printStackTrace();<\/p>\n<p>&nbsp;<\/p>\n<p>}<\/p>\n<p>&nbsp;<\/p>\n<p>return\u00a0resultSet;<\/p>\n<p>&nbsp;<\/p>\n<p>}<\/p>\n<p>&nbsp;<\/p>\n<p>public\u00a0static\u00a0void\u00a0closeConnection(Connection\u00a0connection)\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>try\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>connection.close();<\/p>\n<p>&nbsp;<\/p>\n<p>}\u00a0catch\u00a0(SQLException\u00a0e)\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>e.printStackTrace();<\/p>\n<p>&nbsp;<\/p>\n<p>}<\/p>\n<p>&nbsp;<\/p>\n<p>} }<\/p>\n<pre class=\"post-pre\"><\/pre>\n<p>\u3053\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9\u306e\u4f7f\u7528\u4f8b\u306e\u30b3\u30fc\u30c9\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\">import\u00a0java.sql.Connection;\r\nimport\u00a0java.sql.ResultSet;\r\nimport\u00a0java.sql.SQLException;\r\npublic\u00a0class\u00a0Main\u00a0{<\/pre>\n<p>&nbsp;<\/p>\n<p>public\u00a0static\u00a0void\u00a0main(String[]\u00a0args)\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>String\u00a0url\u00a0=\u00a0\u201cjdbc:mysql:\/\/localhost:3306\/test\u201d;<\/p>\n<p>&nbsp;<\/p>\n<p>String\u00a0username\u00a0=\u00a0\u201croot\u201d;<\/p>\n<p>&nbsp;<\/p>\n<p>String\u00a0password\u00a0=\u00a0\u201cpassword\u201d;<\/p>\n<p>&nbsp;<\/p>\n<p>Connection\u00a0connection\u00a0=\u00a0JdbcUtils.getConnection(url,\u00a0username,\u00a0password);<\/p>\n<p>&nbsp;<\/p>\n<p>ResultSet\u00a0resultSet\u00a0=\u00a0JdbcUtils.executeQuery(connection,\u00a0\u201cSELECT\u00a0*\u00a0FROM\u00a0users\u201d);<\/p>\n<p>&nbsp;<\/p>\n<p>try\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>while\u00a0(resultSet.next())\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>int\u00a0id\u00a0=\u00a0resultSet.getInt(\u201cid\u201d);<\/p>\n<p>&nbsp;<\/p>\n<p>String\u00a0name\u00a0=\u00a0resultSet.getString(\u201cname\u201d);<\/p>\n<p>&nbsp;<\/p>\n<p>System.out.println(&#8220;id:\u00a0&#8221;\u00a0+\u00a0id\u00a0+\u00a0&#8220;,\u00a0name:\u00a0&#8221;\u00a0+\u00a0name);<\/p>\n<p>&nbsp;<\/p>\n<p>}<\/p>\n<p>&nbsp;<\/p>\n<p>}\u00a0catch\u00a0(SQLException\u00a0e)\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>e.printStackTrace();<\/p>\n<p>&nbsp;<\/p>\n<p>}\u00a0finally\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>JdbcUtils.closeConnection(connection);<\/p>\n<p>&nbsp;<\/p>\n<p>}<\/p>\n<p>&nbsp;<\/p>\n<p>} }<\/p>\n<pre class=\"post-pre\"><\/pre>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u6642\u306e\u4f8b\u5916\u51e6\u7406\u3068\u30ea\u30bd\u30fc\u30b9\u89e3\u653e\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b89\u5b9a\u6027\u3068\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>JDBC\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30fc\u30af\u30e9\u30b9\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u304c\u3042\u308a\u307e\u3059\u30021. java.sql\u306a\u3069\u306eJDBC\u95a2\u9023\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3059\u30022. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3001Connection\u30aa\u30d6\u30b8\u30a7\u30af\u30c8 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-91754","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>JDBC \u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3 \u30af\u30e9\u30b9\u3092\u30e9\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/jdbc-\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3-\u30af\u30e9\u30b9\u3092\u30e9\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JDBC \u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3 \u30af\u30e9\u30b9\u3092\u30e9\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"JDBC\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30fc\u30af\u30e9\u30b9\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u304c\u3042\u308a\u307e\u3059\u30021. java.sql\u306a\u3069\u306eJDBC\u95a2\u9023\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3059\u30022. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3001Connection\u30aa\u30d6\u30b8\u30a7\u30af\u30c8 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/jdbc-\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3-\u30af\u30e9\u30b9\u3092\u30e9\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u65b9\u6cd5\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-21T05:18:27+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-04T11:32:35+00:00\" \/>\n<meta name=\"author\" content=\"\u5149, \u660e\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u5149, \u660e\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\u5206\" \/>\n<script type=\"application\/ld+json\" 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