[Java知识库]springboot 整合log4j

Springboot 整合 log4j

• 依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions><!-- 去掉springboot默认配置 -->
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

		<dependency> <!-- 引入log4j2依赖 -->
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j2</artifactId>
        </dependency>

• 配置文件application.yml

logging:
    config: classpath:log4j.xml

• 日志配置文件 log4j.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--log4j2
   日志级别从低到高分为TRACE < DEBUG < INFO < WARN < ERROR < FATAL，如果设置为WARN，则低于WARN的信息都不会输出
 -->
<Configuration status="DEBUG">
    <!-- 变量配置 -->
    <Properties>
        <property name="log_path">./logs</property>
    </Properties>

    <!-- appender配置 -->
    <Appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
        </Console>
        <RollingFile name="DailyRollingFile"
                     fileName="${log_path}/cti-data.log"
                     filePattern="${log_path}/$${date:yyyy-MM}/log%d{yyyy-MM-dd}-%i.log">
            <PatternLayout pattern="[%d][%t][%p][%c:%L] %m%n"/>
            <Policies>
                <TimeBasedTriggeringPolicy interval="1"/>
                <SizeBasedTriggeringPolicy size="50 MB"/>
            </Policies>
            <DefaultRolloverStrategy max="200"/>
        </RollingFile>
    </Appenders>
    <Loggers>
        <Logger name="org.apache.catalina.util.LifecycleBase" level="error"/>
        <Logger name="org.apache.coyote.http11.Http11NioProtocol" level="warn"/>
        <Logger name="org.apache.tomcat.util.net.NioSelectorPool" level="warn"/>
        <Logger name="org.hibernate.validator.internal.util.Version" level="warn"/>
        <Logger name="org.springframework" level="warn"/>
        <Logger name="com.github" level="debug"/>

        <Root level="info">
            <AppenderRef ref="Console"/>
            <AppenderRef ref="DailyRollingFile"/>
        </Root>
    </Loggers>
</Configuration>