{"id":120863,"date":"2024-03-24T00:18:40","date_gmt":"2024-03-23T15:18:40","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/c3p0%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%e8%a8%ad%e5%ae%9a%e4%be%8b\/"},"modified":"2024-04-04T21:49:28","modified_gmt":"2024-04-04T12:49:28","slug":"c3p0%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%e8%a8%ad%e5%ae%9a%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/c3p0%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%e8%a8%ad%e5%ae%9a%e4%be%8b\/","title":{"rendered":"c3p0\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u8a2d\u5b9a\u4f8b"},"content":{"rendered":"<p>C3P0\u306fJava\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u306e\u7ba1\u7406\u306b\u4f7f\u7528\u3067\u304d\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u3067\u3059\u3002\u4ee5\u4e0b\u306fC3P0\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u8a2d\u5b9a\u3092\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>1. \u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u306e\u8a2d\u5b9a\uff1a&#8220;`java<br \/>\nComboPooledDataSource dataSource = new ComboPooledDataSource();<br \/>\ndataSource.setDriverClass(&#8220;com.mysql.jdbc.Driver&#8221;);<br \/>\ndataSource.setJdbcUrl(&#8220;jdbc:mysql:\/\/localhost:3306\/mydatabase&#8221;);<br \/>\ndataSource.setUser(&#8220;username&#8221;);<br \/>\ndataSource.setPassword(&#8220;password&#8221;);<br \/>\n&#8220;`<\/p>\n<p>2. \u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u8a2d\u5b9a\uff1a&#8220;`java<br \/>\ndataSource.setInitialPoolSize(5); \/\/ \u521d\u671f\u63a5\u7d9a\u6570<br \/>\ndataSource.setMinPoolSize(1); \/\/ \u6700\u5c0f\u63a5\u7d9a\u6570<br \/>\ndataSource.setMaxPoolSize(20); \/\/ \u6700\u5927\u63a5\u7d9a\u6570<br \/>\ndataSource.setMaxIdleTime(300); \/\/ \u6700\u5927\u30a2\u30a4\u30c9\u30eb\u6642\u9593\uff08\u79d2\u5358\u4f4d\uff09<br \/>\ndataSource.setAcquireIncrement(5); \/\/ \u4e00\u5ea6\u306b\u53d6\u5f97\u3059\u308b\u63a5\u7d9a\u6570<br \/>\ndataSource.setAcquireRetryAttempts(3); \/\/ \u63a5\u7d9a\u306e\u53d6\u5f97\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u306e\u518d\u8a66\u884c\u56de\u6570<br \/>\ndataSource.setAcquireRetryDelay(1000); \/\/ \u63a5\u7d9a\u306e\u53d6\u5f97\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u306e\u518d\u8a66\u884c\u9045\u5ef6\uff08\u30df\u30ea\u79d2\u5358\u4f4d\uff09<br \/>\ndataSource.setBreakAfterAcquireFailure(false); \/\/ \u63a5\u7d9a\u306e\u53d6\u5f97\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u306b\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u3092\u505c\u6b62\u3059\u308b\u304b<br \/>\n&#8220;`<\/p>\n<p>3. \u63a5\u7d9a\u30c6\u30b9\u30c8\u306e\u8a2d\u5b9a\uff1a&#8220;`java<br \/>\ndataSource.setTestConnectionOnCheckout(true); \/\/ \u63a5\u7d9a\u30d7\u30fc\u30eb\u304b\u3089\u63a5\u7d9a\u3092\u53d6\u5f97\u3057\u305f\u3068\u304d\u306b\u63a5\u7d9a\u306e\u6709\u52b9\u6027\u3092\u30c6\u30b9\u30c8\u3059\u308b\u304b<br \/>\ndataSource.setTestConnectionOnCheckin(true); \/\/ \u63a5\u7d9a\u3092\u63a5\u7d9a\u30d7\u30fc\u30eb\u306b\u8fd4\u5374\u3057\u305f\u3068\u304d\u306b\u63a5\u7d9a\u306e\u6709\u52b9\u6027\u3092\u30c6\u30b9\u30c8\u3059\u308b\u304b<br \/>\ndataSource.setPreferredTestQuery(&#8220;SELECT 1&#8221;); \/\/ \u63a5\u7d9a\u306e\u30c6\u30b9\u30c8\u306b\u4f7f\u7528\u3059\u308bSQL\u6587<br \/>\n&#8220;`<\/p>\n<p>4. \u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u8a2d\u5b9a\uff1a&#8220;`java<br \/>\ndataSource.setMaxStatements(100); \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308bPreparedStatement\u306e\u6570<br \/>\ndataSource.setMaxStatementsPerConnection(10); \/\/ \u63a5\u7d9a\u3054\u3068\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308bPreparedStatement\u306e\u6570<br \/>\ndataSource.setNumHelperThreads(10); \/\/ \u30d8\u30eb\u30d1\u30fc\u306e\u30b9\u30ec\u30c3\u30c9\u6570<br \/>\n&#8220;`<\/p>\n<p>5. 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1. \u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u306e\u8a2d\u5b9a\uff1a&#8220;` [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-120863","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>c3p0\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u8a2d\u5b9a\u4f8b - 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\/c3p0\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u30d7\u30fc\u30eb\u306e\u8a2d\u5b9a\u4f8b\/\" \/>\n<meta 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