{"id":28885,"date":"2024-03-18T19:13:48","date_gmt":"2024-03-18T10:13:48","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-2\/"},"modified":"2024-03-22T19:40:37","modified_gmt":"2024-03-22T10:40:37","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-2","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-2\/","title":{"rendered":"log4j\u3067\u53e4\u3044\u30ed\u30b0\u3092\u5b9a\u671f\u7684\u306b\u524a\u9664\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\u3002"},"content":{"rendered":"<p>log4j\u3067\u306f\u3001\u53e4\u3044\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u5b9a\u671f\u7684\u306b\u524a\u9664\u3059\u308b\u305f\u3081\u306b\u3001RollingFileAppender\u3092\u69cb\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u69cb\u6210\u30d5\u30a1\u30a4\u30eb\u306e\u4f8b\u3067\u3059\uff1a<\/p>\n<pre class=\"post-pre\"><code>log4j.rootLogger=DEBUG, file\r\n\r\nlog4j.appender.file=org.apache.log4j.RollingFileAppender\r\nlog4j.appender.file.File=\/path\/to\/log\/file.log\r\nlog4j.appender.file.MaxFileSize=10MB\r\nlog4j.appender.file.MaxBackupIndex=10\r\n\r\nlog4j.appender.file.triggeringPolicy=org.apache.log4j.rolling.SizeBasedTriggeringPolicy\r\nlog4j.appender.file.triggeringPolicy.MaxFileSize=10MB\r\n\r\nlog4j.appender.file.rollingPolicy=org.apache.log4j.rolling.TimeBasedRollingPolicy\r\nlog4j.appender.file.rollingPolicy.FileNamePattern=\/path\/to\/log\/file_%d{yyyy-MM-dd}.log\r\nlog4j.appender.file.rollingPolicy.ActiveFileName=\/path\/to\/log\/file.log\r\nlog4j.appender.file.rollingPolicy.cleanHistoryOnStart=true\r\n\r\nlog4j.appender.file.layout=org.apache.log4j.PatternLayout\r\nlog4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - 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