Day093

log(로그)를 사용하기 위한 설정

https://mvnrepository.com/
1. Apache Log4j Core
2. Apache Log4j API » 2.20.0
3. pom.xml에 dependency 추가하기
4. src/main/resources 폴더 생성 -> log4j2.xml 파일

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="INFO">
    <Properties>
        <Property name="logNm">SpringProject_Log4j2</Property>
        <Property name="layoutPattern">[%d{yyyy/MM/dd HH:mm:ss,SSS}] [%t] [%-5level] [%logger{36}] %m%n</Property>
    </Properties>
    <Appenders>
        <Console name="Console_Appender" target="SYSTEM_OUT">
            <PatternLayout pattern="${layoutPattern}"/>
        </Console>
        <RollingFile name="File_Appender" fileName="logs/${logNm}.log" filePattern="logs/${logNm}_%d{yyyy-MM-dd}_%i.log.gz">
            <PatternLayout pattern="${layoutPattern}"/>
            <Policies>
                <SizeBasedTriggeringPolicy size="1000KB"/>
                <TimeBasedTriggeringPolicy interval="1"/>
            </Policies>
            <DefaultRolloverStrategy max="10" fileIndex="min"/>
        </RollingFile>
    </Appenders>
    <Loggers>
        <Root level="INFO" additivity="false">
            <AppenderRef ref="Console_Appender"/>
            <AppenderRef ref="File_Appender"/>
        </Root>
        <Logger name="org.springframework" level="DEBUG"
                additivity="false">
            <AppenderRef ref="Console_Appender" />
            <AppenderRef ref="File_Appender"/>
        </Logger>
        <!--하단 name에 본인이 사용하는 package명으로 수정할 것-->
        <Logger name="com.app.controller" level="INFO" additivity="false">
            <AppenderRef ref="Console_Appender" />
            <AppenderRef ref="File_Appender"/>
        </Logger>
        <Logger name="org.springframework" level="INFO" additivity="false">
            <AppenderRef ref="Console_Appender" />
        </Logger>
        
        <Logger name="jdbc.audit" level="WARN" additivity="false">
            <AppenderRef ref="Console_Appender" />
            <AppenderRef ref="File_Appender"/>
        </Logger>
        <Logger name="jdbc.resultset" level="INFO" additivity="false">
            <AppenderRef ref="Console_Appender" />
            <AppenderRef ref="File_Appender"/>
        </Logger>
        <Logger name="jdbc.connection" level="WARN" additivity="false">
            <AppenderRef ref="Console_Appender" />
            <AppenderRef ref="File_Appender"/>
        </Logger>
    </Loggers>
</Configuration>

5. 선언과 사용하기

//선언 부분
private static final Logger Log = LogManager.getLogger(ReservationPaymentController.class);

//로그 출력
Log.info("searchReservationMap2 info");
Log.info("{} search {} param map {}", "0번째위치", "1번째위치", map);
Log.error("searchReservationMap2 error");
Log.warn("searchReservationMap2 warn");
		
//설정에서 레벨이 INFO로 되어있기 때문에 debug레벨은 출력이 되지 않는다.
//설정에서 level="DEBUG"로 수정해야 출력이 된다.
Log.debug("searchReservationMap2 debug");

DB 관련 로깅 라이브러리 추가

Log4Jdbc Log4j2 JDBC 4 1 » 1.16

root-context.xml

<bean class="org.apache.commons.dbcp2.BasicDataSource" id="data_source">
	<property name="driverClassName" value="net.sf.log4jdbc.sql.jdbcapi.DriverSpy" />
	<property name="url" value="jdbc:log4jdbc:oracle:thin:@localhost:1521:orcl" />
	<property name="username" value="scott" />
	<property name="password" value="tiger" />
</bean>

lombok

Project Lombok » 1.18.28
pom.xml에 dependency 추가하기

이클립스가 인식을 못하는 경우
lombok 다운로드
https://projectlombok.org/download

DTO를 생성하는 경우
getter, setter, 생성자 등을 어노테이션을 통해서 직접 작성하지 않아도 생성해주는 라이브러리

@AllArgsConstructor @NoArgsConstructor
@Data //getter setter tostring 
public class ReservationDto {
	String roomNumber;
	String customerNumber;
	
}