logback.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="3 seconds">
    <!-- 定义变量 -->
    <if condition='p("os.name").contains("Windows")'>
        <then>
            <property name="LOG_PATH" value="c:/logs" />
        </then>
    </if>
    <if condition='p("os.name").contains("Linux")'>
        <then>
            <property name="LOG_PATH" value="logs" />
        </then>
    </if>
    <property name="APP_NAME" value="study" />
    <property name="LOG_ROOT_LEVEL" value="debug" />
    <property name="maxHistory" value="30" />
    
    <contextName>${APP_NAME}</contextName>

    <appender name="STDOUT"
        class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>
                <!-- 设置日志输出格式 -->
                [%-5level] %d{yyyy-MM-dd HH:mm:ss} [%thread] %logger{36} - %m%n
            </pattern>
        </encoder>
    </appender>

    <!-- 按照每天生成日志文件 -->
    <appender name="FILE_ERROR"
        class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/${APP_NAME}/ERROR.log</file>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss} [%level] [%thread] %logger{36} - %m%n</pattern>
        </encoder>
        <rollingPolicy
            class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>${LOG_PATH}/${APP_NAME}/ERROR.%d.log
            </FileNamePattern>
            <MaxHistory>${maxHistory}</MaxHistory>
        </rollingPolicy>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>ERROR</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
    </appender>
    
    <appender name="FILE_WARN"
        class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/${APP_NAME}/WARN.log</file>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss} [%level] [%thread] %logger{36} - %m%n</pattern>
        </encoder>
        <rollingPolicy
            class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>${LOG_PATH}/${APP_NAME}/WARN.%d.log
            </FileNamePattern>
            <MaxHistory>${maxHistory}</MaxHistory>
        </rollingPolicy>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>WARN</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
    </appender>
    
    <appender name="FILE_INFO"
        class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/${APP_NAME}/INFO.log</file>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss} [%level] [%thread] %logger{36} - %m%n</pattern>
        </encoder>
        <rollingPolicy
            class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>${LOG_PATH}/${APP_NAME}/INFO.%d.log
            </FileNamePattern>
            <MaxHistory>${maxHistory}</MaxHistory>
        </rollingPolicy>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>INFO</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
    </appender>
    
    <appender name="FILE_DEBUG"
        class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/${APP_NAME}/DEBUG.log</file>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss} [%level] [%thread] %logger{36} - %m%n</pattern>
        </encoder>
        <rollingPolicy
            class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>${LOG_PATH}/${APP_NAME}/DEBUG.%d.log
            </FileNamePattern>
            <MaxHistory>${maxHistory}</MaxHistory>
        </rollingPolicy>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>DEBUG</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
    </appender>

    <root level="${LOG_ROOT_LEVEL}">
        <!-- 控制台输出 -->
        <appender-ref ref="STDOUT" />
        <!-- 文件输出 -->
        <appender-ref ref="FILE_ERROR" />
        <appender-ref ref="FILE_WARN" />
        <appender-ref ref="FILE_INFO" />
        <appender-ref ref="FILE_DEBUG" />
    </root>
</configuration>

中文文档链接：https://yunpan.360.cn/surl_ydCHABuegfQ （提取码：0c21）

注意事项：

1。使用if必须添加依赖

<dependency>
            <groupId>org.codehaus.janino</groupId>
            <artifactId>janino</artifactId>
            <version>3.0.9</version>
        </dependency>