<?xml version="1.0" encoding="UTF-8" ?><configuration>
<!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径-->  <property name="LOG_HOME" value="${catalina.base}/logs/" />  <!-- 控制台输出 -->   <appender name="Stdout" class="ch.qos.logback.core.ConsoleAppender"><!-- 日志输出编码 -->  <layout class="ch.qos.logback.classic.PatternLayout">   <!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符--> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n   </pattern>   </layout>   </appender>   <!-- 按照每天生成日志文件 -->   <appender name="RollingFile"  class="ch.qos.logback.core.rolling.RollingFileAppender">   <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><!--日志文件输出的文件名--><FileNamePattern>${LOG_HOME}/server.%d{yyyy-MM-dd}.log</FileNamePattern>   <MaxHistory>30</MaxHistory></rollingPolicy>   <layout class="ch.qos.logback.classic.PatternLayout">  <!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符--> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n   </pattern>   </layout> <!--日志文件最大的大小--><triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"><MaxFileSize>10MB</MaxFileSize></triggeringPolicy></appender>     <!-- 日志输出级别 --><root level="info">   <appender-ref ref="Stdout" />   <appender-ref ref="RollingFile" />   </root> <!--日志异步到数据库 -->
<!--     <appender name="DB" class="ch.qos.logback.classic.db.DBAppender">日志异步到数据库 <connectionSource class="ch.qos.logback.core.db.DriverManagerConnectionSource">连接池 <dataSource class="com.mchange.v2.c3p0.ComboPooledDataSource"><driverClass>com.mysql.jdbc.Driver</driverClass><url>jdbc:mysql://127.0.0.1:3306/databaseName</url><user>root</user><password>root</password></dataSource></connectionSource></appender> --></configuration>

@RestController
@RequestMapping("/logback")
public class HelloController {private final static Logger logger =LoggerFactory.getLogger(HelloController.class);@RequestMapping("/showInfo")public String showInfo(){logger.info("记录日志");return "Hello Logback";}
}