logback 설정하기

<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-classic</artifactId>
    <version>1.1.7</version> <!--버전은 상황에 따라 -->
</dependency>

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <include resource="org/springframework/boot/logging/logback/defaults.xml" />
    <include resource="org/springframework/boot/logging/logback/console-appender.xml" />    

    <!-- 변수 지정 -->
    <property name="LOG_DIR" value="/logs" />
    <property name="LOG_PATH_NAME" value="${LOG_DIR}/data.log" />

    <!-- FILE Appender -->
    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH_NAME}</file>
        <!-- 일자별로 로그파일 적용하기 -->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${LOG_PATH_NAME}.%d{yyyyMMdd}</fileNamePattern>
            <maxHistory>60</maxHistory> <!-- 일자별 백업파일의 보관기간 -->
        </rollingPolicy>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss} [%-5p] [%F]%M\(%L\) : %m%n</pattern>
        </encoder>
    </appender>

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
      <layout class="ch.qos.logback.classic.PatternLayout">
        <pattern>%d{yyyy-MM-dd HH:mm:ss} [%-5p] [%F]%M\(%L\) : %m%n</pattern>
      </layout>
    </appender>

    <!-- TRACE > DEBUG > INFO > WARN > ERROR, 대소문자 구분 안함 -->
    <!-- profile 을 읽어서 appender 을 설정할수 있다.(phase별 파일을 안만들어도 되는 좋은 기능) -->
    <springProfile name="local">
      <root level="DEBUG">
        <appender-ref ref="FILE" />
        <appender-ref ref="STDOUT" />
      </root>
    </springProfile>
    <springProfile name="real">
      <root level="INFO">
        <appender-ref ref="FILE" />
        <appender-ref ref="STDOUT" />
      </root>
    </springProfile>
</configuration>

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class Foo {
    static final Logger logger = LoggerFactory.getLogger(Foo.class);

    public void test() {
        logger.debug("ID : {}", "foo");
    }
}

import lombok.extern.slf4j.Slf4j;

@Slf4j
public class Foo {

    public void test() {
        log.debug("ID : {}", "foo");
    }
}