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@gexiangdong
Last active September 21, 2023 02:11
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在非spring项目中使用slf4j和logback

在 spring-boot 项目中, slf4j和logback被自动引入,只需要配置logback即可使用,当不是spring-boot项目时,需要我们手工做点事才能使用。

增加依赖

    <dependency>
      <groupId>ch.qos.logback</groupId>
      <artifactId>logback-classic</artifactId>
      <version>1.2.3</version>
    </dependency>

这一个依赖就够了,它会自动帮我们增加另外两个依赖: logback-core 和 slf4j-api

配置logback.xml

这和spring-boot中项目中区别不大,文件名从logback-spring.xml被改成了 logback.xml,还是放置到 src/main/resources 目录下,里面不再设置spring的profile了。

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<Pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern>
</encoder>
</appender>
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>target/log.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>log.%d{yyyy-MM-dd}.log</fileNamePattern>
<maxHistory>30</maxHistory>
<totalSizeCap>1GB</totalSizeCap>
</rollingPolicy>
<encoder>
<pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
<logger name="cn.devmgr" level="TRACE"/>
<root level="INFO">
<appender-ref ref="STDOUT"/>
<appender-ref ref="FILE"/>
</root>
</configuration>
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