{"id":103078,"date":"2024-03-22T06:20:41","date_gmt":"2024-03-21T21:20:41","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e3%81%ab%e6%8e%a5%e7%b6%9a%e3%82%92%e7%a2%ba%e7%ab%8b%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2024-03-28T08:33:37","modified_gmt":"2024-03-27T23:33:37","slug":"java%e3%81%a7%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e3%81%ab%e6%8e%a5%e7%b6%9a%e3%82%92%e7%a2%ba%e7%ab%8b%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e3%81%ab%e6%8e%a5%e7%b6%9a%e3%82%92%e7%a2%ba%e7%ab%8b%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"Java\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>\uff11\uff0e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c9\u30e9\u30a4\u30d0\u306e\u30ed\u30fc\u30c9\u3002\u4f7f\u7528\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u7a2e\u985e\u306b\u5408\u308f\u305b\u3066\u5bfe\u5fdc\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c9\u30e9\u30a4\u30d0\u3092\u30ed\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001MySQL\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001Class.forName(&#8220;com.mysql.jdbc.Driver&#8221;)\u3092\u4f7f\u3046\u3068\u3001MySQL\u30c9\u30e9\u30a4\u30d0\u3092\u30ed\u30fc\u30c9\u3067\u304d\u307e\u3059\u3002\uff12\uff0e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u306e\u4f5c\u6210\u3002DriverManager.getConnection(url, user, password)\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u3001url\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306eURL\u3001user\u3068password\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u3067\u3059\u3002\uff13\uff0e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30af\u30a8\u30ea\u307e\u305f\u306f\u64cd\u4f5c\u306e\u5b9f\u884c\u3002\u63a5\u7d9a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306ecreateStatement()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001Statement\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3001Statement\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3057\u3066SQL\u30af\u30a8\u30ea\u307e\u305f\u306f\u64cd\u4f5c\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\uff14\uff0e\u30af\u30a8\u30ea\u7d50\u679c\u306e\u51e6\u7406\u3002\u30af\u30a8\u30ea\u64cd\u4f5c\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u3001ResultSet\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3057\u3066\u30af\u30a8\u30ea\u7d50\u679c\u3092\u51e6\u7406\u3067\u304d\u307e\u3059\u3002\uff15\uff0e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u306e\u30af\u30ed\u30fc\u30ba\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u3092\u5b8c\u4e86\u3057\u305f\u3089\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3092\u9589\u3058\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u63a5\u7d9a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306eclose()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u9589\u3058\u307e\u3059\u3002\u6b21\u306b\u3001MySQL\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3057\u3066\u30af\u30a8\u30ea\u64cd\u4f5c\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306e\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\">import\u00a0java.sql.*;\r\npublic\u00a0class\u00a0Main\u00a0{<\/pre>\n<p>public\u00a0static\u00a0void\u00a0main(String[]\u00a0args)\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>String\u00a0url\u00a0=\u00a0\u201cjdbc:mysql:\/\/localhost:3306\/mydatabase\u201d;<\/p>\n<p>&nbsp;<\/p>\n<p>String\u00a0user\u00a0=\u00a0\u201croot\u201d;<\/p>\n<p>&nbsp;<\/p>\n<p>String\u00a0password\u00a0=\u00a0\u201cpassword\u201d;<\/p>\n<p>&nbsp;<\/p>\n<p>try\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>\/\/\u00a0\u52a0\u8f7d\u00a0MySQL\u00a0\u9a71\u52a8\u7a0b\u5e8f<\/p>\n<p>&nbsp;<\/p>\n<p>Class.forName(\u201ccom.mysql.jdbc.Driver\u201d);<\/p>\n<p>&nbsp;<\/p>\n<p>\/\/\u00a0\u5efa\u7acb\u6570\u636e\u5e93\u8fde\u63a5<\/p>\n<p>&nbsp;<\/p>\n<p>Connection\u00a0conn\u00a0=\u00a0DriverManager.getConnection(url,\u00a0user,\u00a0password);<\/p>\n<p>&nbsp;<\/p>\n<p>\/\/\u00a0\u521b\u5efa\u00a0Statement\u00a0\u5bf9\u8c61<\/p>\n<p>&nbsp;<\/p>\n<p>Statement\u00a0stmt\u00a0=\u00a0conn.createStatement();<\/p>\n<p>&nbsp;<\/p>\n<p>\/\/\u00a0\u6267\u884c\u67e5\u8be2<\/p>\n<p>&nbsp;<\/p>\n<p>String\u00a0sql\u00a0=\u00a0\u201cSELECT\u00a0*\u00a0FROM\u00a0mytable\u201d;<\/p>\n<p>&nbsp;<\/p>\n<p>ResultSet\u00a0rs\u00a0=\u00a0stmt.executeQuery(sql);<\/p>\n<p>&nbsp;<\/p>\n<p>\/\/\u00a0\u5904\u7406\u67e5\u8be2\u7ed3\u679c<\/p>\n<p>&nbsp;<\/p>\n<p>while\u00a0(rs.next())\u00a0{<\/p>\n<p>&nbsp;<\/p>\n<p>\/\/\u00a0\u5904\u7406\u6bcf\u4e00\u884c\u6570\u636e<\/p>\n<p>&nbsp;<\/p>\n<p>int\u00a0id\u00a0=\u00a0rs.getInt(\u201cid\u201d);<\/p>\n<p>&nbsp;<\/p>\n<p>String\u00a0name\u00a0=\u00a0rs.getString(\u201cname\u201d);<\/p>\n<p>&nbsp;<\/p>\n<p>\/\/\u00a0\u2026<\/p>\n<p>&nbsp;<\/p>\n<p>}<\/p>\n<p>&nbsp;<\/p>\n<p>\/\/\u00a0\u5173\u95ed\u8fde\u63a5<\/p>\n<p>&nbsp;<\/p>\n<p>rs.close();<\/p>\n<p>&nbsp;<\/p>\n<p>stmt.close();<\/p>\n<p>&nbsp;<\/p>\n<p>conn.close();<\/p>\n<p>&nbsp;<\/p>\n<p>}\u00a0catch\u00a0(Exception\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>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u5185\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e URL\u3001\u30e6\u30fc\u30b6\u30fc\u540d\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u3001\u5b9f\u969b\u306e\u72b6\u6cc1\u306b\u5408\u308f\u305b\u3066\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u95a2\u9023\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c9\u30e9\u30a4\u30d0\u30fc\u304c\u30af\u30e9\u30b9\u30d1\u30b9\u306b\u8ffd\u52a0\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uff11\uff0e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c9\u30e9\u30a4\u30d0\u306e\u30ed\u30fc\u30c9\u3002\u4f7f\u7528\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u7a2e\u985e\u306b\u5408\u308f\u305b\u3066\u5bfe\u5fdc\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c9\u30e9\u30a4\u30d0\u3092\u30ed\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001MySQL\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001Class.forName(&#8220;com.mysq [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-103078","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>Java\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3092\u78ba\u7acb\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\/java\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta 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