问题现象:
记一次在idea上运行调试代码的时候报的一个错,报错如下:
ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console. Set system property ‘log4j2.debug’ to show Log4j2 internal initialization logging.
原因:
在pom.xml文件中导入了log4j的依赖:
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.9.0</version>
</dependency>
但是,log4j2的配置文件并没有导入,尝试导入log4j.properties ,但并不行,需要导入log4j2.xml
解决办法:
在工程的resources目录下新建一个文件:log4j2.xml ,然后在该文件中下入以下配置信息:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Appenders>
<Console name="STDOUT" target="SYSTEM_OUT">
<PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>
</Console>
<RollingFile name="RollingFile" fileName="logs/strutslog1.log"
filePattern="logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout>
<Pattern>%d{MM-dd-yyyy} %p %c{1.} [%t] -%M-%L- %m%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="1 KB"/>
</Policies>
<DefaultRolloverStrategy fileIndex="max" max="2"/>
</RollingFile>
</Appenders>
<Loggers>
<Logger name="com.opensymphony.xwork2" level="WAN"/>
<Logger name="org.apache.struts2" level="WAN"/>
<Root level="warn">
<AppenderRef ref="STDOUT"/>
</Root>
</Loggers>
</Configuration>
之后,重新运行调试代码,不再报错:
问题解决。