Log4j配置指定类输出指定日志文件

我会带着你远行 2022-10-10 12:50 400阅读 0赞

> # 一、配置log4j #

<appender name="mjLogAppender" class="org.apache.log4j.DailyRollingFileAppender">
    		
    		<param name="File" value="${BR.root}/../log/mj/app.log"/>
    		
    		<layout class="org.apache.log4j.PatternLayout">
    			<param name="ConversionPattern" value="[%d{yyyy-MM-dd HH:mm:ss,SSS}][%p](%l) - %m%n"/>
    		</layout>
    		
    		<param name="MaxBackupIndex" value="20"/>
    		
    		<param name="MaxFileSize" value="10MB"/>
    		
    		<param name="encoding" value="utf-8"/>
    		
    		 <filter class="org.apache.log4j.varia.LevelRangeFilter">
                <param name="LevelMin" value="debug"/>
    			<param name="LevelMax" value="error"/>
            </filter>
    	</appender>
    	
    	
    	<logger name="MjLog" additivity="false">
    		<level value="info" />
    		
    		<appender-ref ref="mjLogAppender" />
    		
    		<appender-ref ref="consoleAppender" />
    	</logger>

--------------------

> # 二、配置 java 类，使用自定义  #

// 获取自定义日志对象，这里的 MjLog 为log4j 中定义的名字
    private static final Logger mjLog = LoggerFactory.getLogger("MjLog");
    
    
    mjLog.info("自定义类输出到指定日志文件！");

参考文献：[https://blog.csdn.net/wnsh1990/article/details/79976646][https_blog.csdn.net_wnsh1990_article_details_79976646]

[https_blog.csdn.net_wnsh1990_article_details_79976646]: https://blog.csdn.net/wnsh1990/article/details/79976646