{"id":131018,"date":"2024-03-25T17:19:30","date_gmt":"2024-03-25T08:19:30","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/log4j%e3%81%a7%e5%8f%a4%e3%81%84%e3%83%ad%e3%82%b0%e3%82%92%e5%ae%9a%e6%9c%9f%e7%9a%84%e3%81%ab%e5%89%8a%e9%99%a4%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b-3\/"},"modified":"2024-04-04T19:58:32","modified_gmt":"2024-04-04T10:58:32","slug":"log4j%e3%81%a7%e5%8f%a4%e3%81%84%e3%83%ad%e3%82%b0%e3%82%92%e5%ae%9a%e6%9c%9f%e7%9a%84%e3%81%ab%e5%89%8a%e9%99%a4%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b-3","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/log4j%e3%81%a7%e5%8f%a4%e3%81%84%e3%83%ad%e3%82%b0%e3%82%92%e5%ae%9a%e6%9c%9f%e7%9a%84%e3%81%ab%e5%89%8a%e9%99%a4%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b-3\/","title":{"rendered":"log4j\u3067\u53e4\u3044\u30ed\u30b0\u3092\u5b9a\u671f\u7684\u306b\u524a\u9664\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>\u30ed\u30b0\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u3001log4j \u3067\u306e org.apache.log4j.rolling.RollingFileAppender \u3092\u4f7f\u7528\u3057\u3066\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002RollingFileAppender \u306e\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u3001\u30ed\u30b0\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30dd\u30ea\u30b7\u30fc\u3068\u3057\u3066\u6642\u9593\u30d9\u30fc\u30b9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>RollingFileAppender\u3092\u4f7f\u7528\u3057\u3066\u53e4\u3044\u30ed\u30b0\u3092\u5b9a\u671f\u7684\u306b\u524a\u9664\u3059\u308b\u624b\u9806\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>log4j\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u5185\u306bRollingFileAppender\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\uff1a<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">appender<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"appenderName\"<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"org.apache.log4j.rolling.RollingFileAppender\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">param<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"File\"<\/span> <span class=\"hljs-attr\">value<\/span>=<span class=\"hljs-string\">\"logFilename.log\"<\/span> \/&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">param<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"MaxFileSize\"<\/span> <span class=\"hljs-attr\">value<\/span>=<span class=\"hljs-string\">\"10MB\"<\/span> \/&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">param<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"MaxBackupIndex\"<\/span> <span class=\"hljs-attr\">value<\/span>=<span class=\"hljs-string\">\"10\"<\/span> \/&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">rollingPolicy<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"org.apache.log4j.rolling.TimeBasedRollingPolicy\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">param<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"FileNamePattern\"<\/span> <span class=\"hljs-attr\">value<\/span>=<span class=\"hljs-string\">\"logFilename-%d{yyyy-MM-dd}.log\"<\/span> \/&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">param<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"CleanHistoryOnStart\"<\/span> <span class=\"hljs-attr\">value<\/span>=<span class=\"hljs-string\">\"true\"<\/span> \/&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">rollingPolicy<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">layout<\/span> <span class=\"hljs-attr\">class<\/span>=<span class=\"hljs-string\">\"org.apache.log4j.PatternLayout\"<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">param<\/span> <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"ConversionPattern\"<\/span> <span class=\"hljs-attr\">value<\/span>=<span class=\"hljs-string\">\"%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n\"<\/span> \/&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">layout<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">appender<\/span>&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u8a2d\u5b9a\u3067MaxFileSize\u306f\u5358\u4e00\u306e\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306e\u6700\u5927\u30b5\u30a4\u30ba\u3092\u8868\u3057\u3001MaxBackupIndex\u306f\u4fdd\u6301\u3055\u308c\u308b\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30d5\u30a1\u30a4\u30eb\u306e\u6570\u3092\u8868\u3059\u3002<\/p>\n<ol>\n<li>\u30ed\u30fc\u30ea\u30f3\u30b0\u30dd\u30ea\u30b7\u30fc<\/li>\n<li>\u30d5\u30a1\u30a4\u30eb\u540d\u30d1\u30bf\u30fc\u30f3<\/li>\n<li>\u8d77\u52d5\u6642\u306b\u5c65\u6b74\u3092\u6d88\u53bb<\/li>\n<li>\u79c1\u306f\u3053\u306e\u4f1a\u793e\u306e\u88fd\u54c1\u30921\u3064\u8cb7\u3044\u307e\u3057\u305f\u3002<\/li>\n<\/ol>\n<p>\u8a2d\u5b9a\u306b\u3088\u308a\u3001Log4J \u306f\u6307\u5b9a\u3055\u308c\u305f\u6642\u9593\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u5f93\u3063\u3066\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u751f\u6210\u3057\u3001\u8d77\u52d5\u6642\u306b\u4ee5\u524d\u306e\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30ed\u30b0\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u3001log4j \u3067\u306e org.apache.log4j.rolling.RollingFileAppender \u3092\u4f7f\u7528\u3057\u3066\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002RollingFileAppender \u306e\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u3001\u30ed\u30b0\u306e\u30ed\u30fc [&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-131018","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) - 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