springbootDruid中使⽤log4j2进⾏⽇志输出maven的配置
<!--Spring-boot中去掉logback的依赖-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--⽇志-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<!--数据库连接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.6</version>
</dependency>
<!--aop中去掉logback的依赖，如果没⽤到aop就算了，这玩意⼀定要去除⼲净，不然会报重复lockbak配置错误-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<?xml version="1.0" encoding="UTF-8"?>
<configuration status="OFF">
<appenders>
<Console name="Console" target="SYSTEM_OUT">
<!--只接受程序中DEBUG级别的⽇志进⾏处理-->
<ThresholdFilter level="DEBUG" onMatch="ACCEPT" onMismatch="DENY"/>
<PatternLayout pattern="[%d{HH:mm:ss.SSS}] %-5level %class{36} %L %M - %msg%xEx%n"/>
</Console>
<!--处理DEBUG级别的⽇志，并把该⽇志放到logs/debug.log⽂件中-->
<!--打印出DEBUG级别⽇志，每次⼤⼩超过size，则这size⼤⼩的⽇志会⾃动存⼊按年份-⽉份建⽴的⽂件夹下⾯并进⾏压缩，作为存档-->        <RollingFile name="RollingFileDebug" fileName="./logs/debug.log"
filePattern="logs/$${date:yyyy-MM}/debug-%d{yyyy-MM-dd}-%">
<Filters>
<ThresholdFilter level="DEBUG"/>
<ThresholdFilter level="INFO" onMatch="DENY" onMismatch="NEUTRAL"/>
</Filters>
</Filters>
<PatternLayout
pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"/>            <Policies>
<SizeBasedTriggeringPolicy size="500 MB"/>
<TimeBasedTriggeringPolicy/>
</Policies>
</RollingFile>
<!--处理INFO级别的⽇志，并把该⽇志放到logs/info.log⽂件中-->
<RollingFile name="RollingFileInfo" fileName="./logs/info.log"
filePattern="logs/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%">
<Filters>
<!--只接受INFO级别的⽇志，其余的全部拒绝处理-->
<ThresholdFilter level="INFO"/>
<ThresholdFilter level="WARN" onMatch="DENY" onMismatch="NEUTRAL"/>
</Filters>
<PatternLayout
pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"/>            <Policies>
<SizeBasedTriggeringPolicy size="500 MB"/>
<TimeBasedTriggeringPolicy/>
</Policies>
</RollingFile>
<!--处理WARN级别的⽇志，并把该⽇志放到logs/warn.log⽂件中-->
<RollingFile name="RollingFileWarn" fileName="./logs/warn.log"
filePattern="logs/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%">
<Filters>
<ThresholdFilter level="WARN"/>
<ThresholdFilter level="ERROR" onMatch="DENY" onMismatch="NEUTRAL"/>
</Filters>
<PatternLayout
pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"/>            <Policies>
<SizeBasedTriggeringPolicy size="500 MB"/>
<TimeBasedTriggeringPolicy/>
</Policies>
</RollingFile>
<!--处理error级别的⽇志，并把该⽇志放到logs/error.log⽂件中-->
<RollingFile name="RollingFileError" fileName="./logs/error.log"
filePattern="logs/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%">
<ThresholdFilter level="ERROR"/>
<PatternLayout
pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"/>            <Policies>
<SizeBasedTriggeringPolicy size="500 MB"/>
<TimeBasedTriggeringPolicy/>
</Policies>
</RollingFile>
<!--druid的⽇志记录追加器-->
<RollingFile name="druidSqlRollingFile" fileName="./logs/druid-sql.log"
filePattern="logs/$${date:yyyy-MM}/api-%d{yyyy-MM-dd}-%">
<PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss}] %-5level %L %M - %msg%xEx%n"/>            <Policies>
<SizeBasedTriggeringPolicy size="500 MB"/>
<TimeBasedTriggeringPolicy/>
</Policies>
</RollingFile>
</appenders>
<loggers>
<root level="DEBUG">
<appender-ref ref="Console"/>
<appender-ref ref="Console"/>
<appender-ref ref="RollingFileInfo"/>
<appender-ref ref="RollingFileWarn"/>
<appender-ref ref="RollingFileError"/>
<appender-ref ref="RollingFileDebug"/>
</root>
<!--记录druid-sql的记录-->
<logger name="druid.sql.Statement" level="debug" additivity="false">
<appender-ref ref="druidSqlRollingFile"/>
</logger>
<!--log4j2 ⾃带过滤⽇志-->
<Logger name="org.apache.catalina.startup.DigesterFactory" level="error" />
<Logger name="org.apache.catalina.util.LifecycleBase" level="error" />
springboot aop
<Logger name="http11.Http11NioProtocol" level="warn" />
<logger name="org.apache.sshdmon.util.SecurityUtils" level="warn"/>
<Logger name="at.util.NioSelectorPool" level="warn" />
<Logger name="sh.plugin" level="warn" />
<logger name="sh.ssh" level="warn"/>
<Logger name="lipse.jetty.utilponent.AbstractLifeCycle" level="error" />
<Logger name="org.hibernate.validator.internal.util.Version" level="warn" />
<logger name="org.springframework.boot.actuate.autoconfigure.CrshAutoConfiguration" level="warn"/>        <logger name="org.springframework.dpoint.jmx" level="warn"/>
<logger name="org.thymeleaf" level="warn"/>
</loggers>
</configuration>
# application.properties
# 配置⽇志输出
spring.datasource.druid.abled=true
spring.datasource.druid.filter.slf4j.statement-create-after-log-enabled=false
spring.datasource.druid.filter.slf4j.statement-close-after-log-enabled=false
spring.datasource.druid.sult-set-open-after-log-enabled=false
spring.datasource.druid.sult-set-close-after-log-enabled=false
另外附上log4j2的⽤法：

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