{"id":131085,"date":"2024-03-25T17:34:28","date_gmt":"2024-03-25T08:34:28","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e6%8e%a5%e7%b6%9a%e3%83%97%e3%83%bc%e3%83%ab%e3%81%ae%e4%bb%95%e7%b5%84%e3%81%bf\/"},"modified":"2024-04-04T13:35:49","modified_gmt":"2024-04-04T04:35:49","slug":"java%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e6%8e%a5%e7%b6%9a%e3%83%97%e3%83%bc%e3%83%ab%e3%81%ae%e4%bb%95%e7%b5%84%e3%81%bf","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e6%8e%a5%e7%b6%9a%e3%83%97%e3%83%bc%e3%83%ab%e3%81%ae%e4%bb%95%e7%b5%84%e3%81%bf\/","title":{"rendered":"Java\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u4ed5\u7d44\u307f"},"content":{"rendered":"<p>Java\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>JDBC\u30c9\u30e9\u30a4\u30d0\u3068\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u306e\u6240\u8981\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u53d6\u308a\u8fbc\u3080\u3002\u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9\u3067\u306f\u3001\u7279\u5b9a\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30d9\u30f3\u30c0\u30fc\u304c\u63d0\u4f9b\u3059\u308bJDBC\u30c9\u30e9\u30a4\u30d0\u304c\u5fc5\u8981\u3068\u306a\u308a\u3001\u63a5\u7d9a\u30d7\u30fc\u30eb\u5b9f\u88c5\uff08Apache Commons DBCP\u3001HikariCP\u306a\u3069\uff09\u3092\u9078\u629e\u3059\u308b\u3002<\/p>\n<p>\u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u8a2d\u5b9a\uff1a\u63a5\u7d9a\u30d7\u30fc\u30eb\u306b\u306f\u3001\u6700\u5927\u63a5\u7d9a\u6570\u3001\u6700\u5c0f\u904a\u4f11\u63a5\u7d9a\u6570\u3001\u63a5\u7d9a\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u9593\u306a\u3069\u3001\u69cb\u6210\u4e0a\u306e\u91cd\u8981\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u3001\u9069\u5207\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>3. \u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u306e\u4f5c\u6210\uff1a\u30b3\u30fc\u30c9\u306e\u4e2d\u3067\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3001\u8a2d\u5b9a\u6e08\u307f\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3067\u521d\u671f\u5316\u3057\u307e\u3059\u3002\u3053\u306e\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u306e\u4f5c\u6210\u3068\u89e3\u653e\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002<\/p>\n<p>4. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u306e\u53d6\u5f97\uff1a\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5229\u7528\u3057\u3066\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u304b\u3089\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3092\u53d6\u5f97\u3059\u308b\u3002\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u306f\u81ea\u52d5\u7684\u306b\u63a5\u7d9a\u306e\u5272\u308a\u5f53\u3066\u3068\u30ea\u30b5\u30a4\u30af\u30eb\u3092\u7ba1\u7406\u3057\u3001\u63a5\u7d9a\u304c\u5341\u5206\u306b\u6d3b\u7528\u3055\u308c\u3066\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5236\u9650\u3092\u8d85\u3048\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306e\u5b9f\u884c\uff1a\u53d6\u5f97\u3057\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u3067SQL\u6587\u306a\u3069\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u3092\u5b9f\u884c\u3059\u308b\u3002\u64cd\u4f5c\u304c\u5b8c\u4e86\u3057\u305f\u3089\u3001\u901f\u3084\u304b\u306b\u63a5\u7d9a\u3092\u89e3\u653e\u3057\u3001\u63a5\u7d9a\u30d7\u30fc\u30eb\u306b\u8fd4\u9084\u3059\u308b\u3002<\/p>\n<p>\u4ee5\u4e0b\u306b Apache Commons DBCP \u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u3092\u5b9f\u73fe\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3059\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u30b3\u30fc\u30c9\u4f8b\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\">import\u00a0org.apache.commons.dbcp2.BasicDataSource;<\/pre>\n<p>public\u00a0class\u00a0ConnectionPoolExample\u00a0{<\/p>\n<p>public\u00a0static\u00a0void\u00a0main(String[]\u00a0args)\u00a0{<\/p>\n<p>\/\/\u00a0\u914d\u7f6e\u8fde\u63a5\u6c60\u53c2\u6570<\/p>\n<p>BasicDataSource\u00a0dataSource\u00a0=\u00a0new\u00a0BasicDataSource();<\/p>\n<p>dataSource.setUrl(&#8220;jdbc:<span class=\"in-link\" data-id=\"61\">mysql<\/span>:\/\/localhost:3306\/mydatabase&#8221;);<\/p>\n<p>dataSource.setUsername(&#8220;username&#8221;);<\/p>\n<p>dataSource.setPassword(&#8220;password&#8221;);<\/p>\n<p>dataSource.setMinIdle(5);<\/p>\n<p>dataSource.setMaxTotal(10);<\/p>\n<p>dataSource.setMaxWaitMillis(5000);<\/p>\n<p>\/\/\u00a0\u83b7\u53d6\u6570\u636e\u5e93\u8fde\u63a5<\/p>\n<p>Connection\u00a0connection\u00a0=\u00a0null;<\/p>\n<p>try\u00a0{<\/p>\n<p>connection\u00a0=\u00a0dataSource.getConnection();<\/p>\n<p>\/\/\u00a0\u6267\u884c\u6570\u636e\u5e93\u64cd\u4f5c<\/p>\n<p>\/\/\u00a0&#8230;<\/p>\n<p>}\u00a0catch\u00a0(SQLException\u00a0e)\u00a0{<\/p>\n<p>e.printStackTrace();<\/p>\n<p>}\u00a0finally\u00a0{<\/p>\n<p>\/\/\u00a0\u91ca\u653e\u8fde\u63a5<\/p>\n<p>if\u00a0(connection\u00a0!=\u00a0null)\u00a0{<\/p>\n<p>try\u00a0{<\/p>\n<p>connection.close();<\/p>\n<p>}\u00a0catch\u00a0(SQLException\u00a0e)\u00a0{<\/p>\n<p>e.printStackTrace();<\/p>\n<p>}<\/p>\n<p>}<\/p>\n<p>}<\/p>\n<p>}<\/p>\n<p>}<\/p>\n<pre class=\"post-pre\"><\/pre>\n<p>\u4e0a\u8a18\u306e\u624b\u9806\u306b\u3088\u308aJava\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u3092\u6b63\u5e38\u306b\u3054\u5229\u7528\u3044\u305f\u3060\u3051\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u306a\u304a\u3001\u5b9f\u969b\u306e\u3054\u5229\u7528\u6642\u306b\u306f\u72b6\u6cc1\u306b\u5408\u308f\u305b\u3066\u3055\u3089\u306b\u8a2d\u5b9a\u304a\u3088\u3073\u6700\u9069\u5316\u304c\u5fc5\u8981\u3068\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002 JDBC\u30c9\u30e9\u30a4\u30d0\u3068\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u306e\u6240\u8981\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u53d6\u308a\u8fbc\u3080\u3002\u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9\u3067\u306f\u3001\u7279\u5b9a\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30d9\u30f3\u30c0\u30fc\u304c\u63d0\u4f9b\u3059\u308bJDBC\u30c9\u30e9\u30a4\u30d0\u304c\u5fc5\u8981\u3068\u306a\u308a\u3001\u63a5\u7d9a\u30d7\u30fc\u30eb [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-131085","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\/ 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JDBC\u30c9\u30e9\u30a4\u30d0\u3068\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb\u306e\u6240\u8981\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u53d6\u308a\u8fbc\u3080\u3002\u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9\u3067\u306f\u3001\u7279\u5b9a\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30d9\u30f3\u30c0\u30fc\u304c\u63d0\u4f9b\u3059\u308bJDBC\u30c9\u30e9\u30a4\u30d0\u304c\u5fc5\u8981\u3068\u306a\u308a\u3001\u63a5\u7d9a\u30d7\u30fc\u30eb [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u4ed5\u7d44\u307f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-25T08:34:28+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-04T04:35:49+00:00\" \/>\n<meta name=\"author\" content=\"\u7d50\u8863, \u6625\u82b1\" \/>\n<meta name=\"twitter:card\" 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