I've set up logback.xml to select which appender to use based on the active Spring profile. The technique works perfectly when I run the app using
java -jar -Dspring.profiles.active=local path/to/target/application.war
but not when I run it using the Spring Boot Maven Plugin, e.g.
mvn spring-boot:run -Drun.profiles=local
Here's the relevant section of the logback.xml
<root level="INFO">
<if condition='"${spring.profiles.active}".contains("local")'>
<then>
<appender-ref ref="CONSOLE"/>
</then>
<else>
<appender-ref ref="FILE"/>
</else>
</if>
</root>
I will note that the profile does show up correctly in the application itself, just isn't available when processing logback.xml.
The problem also manifests when running from the IntelliJ IDE.
Is there another way to use the Maven Spring Boot Plugin to cause the profile to be visible to the logback.xml parser, and would it work for IntelliJ, as well?
Have you tried to configure logback through logback-spring extension?
In your case logback-spring.xml could look like this:
<?xml version="1.0" encoding="UTF-8"?>
<include resource="org/springframework/boot/logging/logback/base.xml"/><!-- include this config if you want to use spring-boot's built-in appenders -->
<configuration>
<root level="INFO">
<springProfile name="local">
<appender-ref ref="CONSOLE"/>
</springProfile>
<springProfile name="otherprofile">
<appender-ref ref="FILE"/>
</springProfile>
</root>
</configuration>
More information about available options in logback-spring extensions:
https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-logging.html#boot-features-logback-extensions
Related
I have a project in Spring Boot where I am adding logs with the #Slf4j annotation, but I can't get them to show up in the terminal when starting the project.
This is the log: log.info("totalVacations: " + totalVacations);
When I run the command mvn spring-boot: run, in terminal I can't see the message.
Very likely you are missing the configuration of the appender, if you are also using LOG4J and you don't already have it, you can create a file named: log4j2.xml within the application's class path, and then create some basic configuration like:
<Configuration>
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout
pattern="%style{%d{ISO8601}}{black} %highlight{%-5level }[%style{%t}{bright,blue}] %style{%C{1.}}{bright,yellow}: %msg%n%throwable" />
</Console>
<RollingFile name="RollingFile"
fileName="./logs/spring-boot-logger-log4j2.log"
filePattern="./logs/$${date:yyyy-MM}/spring-boot-logger-log4j2-%d{-dd-MMMM-yyyy}-%i.log.gz">
<PatternLayout>
<pattern>%d %p %C{1.} [%t] %m%n</pattern>
</PatternLayout>
<Policies>
<!-- rollover on startup, daily and when the file reaches
10 MegaBytes -->
<OnStartupTriggeringPolicy />
<SizeBasedTriggeringPolicy
size="10 MB" />
<TimeBasedTriggeringPolicy />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<!-- LOG everything at INFO level -->
<Root level="info">
<AppenderRef ref="Console" />
<AppenderRef ref="RollingFile" />
</Root>
<!-- LOG "com.baeldung*" at TRACE level -->
<Logger name="com.baeldung" level="trace"></Logger>
</Loggers>
</Configuration>
The key here is to set an appender to the console so that the logs are pushed there, and then at the logger section establish which level are you trying to get at the console appender, according to your example that should be INFO
If you are using just plain SLF4J with Logback go to src/main/resources/application.properties and add the following line:
logging.level.com=INFO
The ".com" is referencing the package to where this will apply, in this case is everything inside src/main/java/com.
and at the logback-spring.xml try this basic config:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include resource="org/springframework/boot/logging/logback/base.xml"/>
<logger name="your.name" level="INFO" additivity="false">
<appender-ref ref="CONSOLE"/>
<appender-ref ref="FILE"/>
</logger>
</configuration>
You can find a very nice tutorial with more info here:
https://www.baeldung.com/spring-boot-logging
https://springframework.guru/using-logback-spring-boot/
Check whether #Slf4J import is from Lombok or some other library. I'm sure lombok #Slf4J default provides lowercase log and not LOG.
I want to use Graylog/RabbitMQ for logging with my spring boot microservices. As per my understanding I have to send my logs to RabbitMQ and have to integrate it with Graylog. I want to know the workflow and how to implement it like how to send the logs to RabbitMQ, do I need to use any other logging framework.
You can use Logback appender to send logs from spring-boot app. Add following dependency to your pom.xml
<dependency>
<groupId>de.siegmar</groupId>
<artifactId>logback-gelf</artifactId>
<version>1.1.0</version>
</dependency>
Then you need to add a logback configuration file to your classpath.
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include resource="org/springframework/boot/logging/logback/base.xml" />
<appender name="GELF" class="de.siegmar.logbackgelf.GelfUdpAppender">
<graylogHost>localhost</graylogHost>
<graylogPort>12201</graylogPort>
<maxChunkSize>508</maxChunkSize>
<useCompression>true</useCompression>
<layout class="de.siegmar.logbackgelf.GelfLayout">
<originHost>localhost</originHost>
<includeRawMessage>false</includeRawMessage>
<includeMarker>true</includeMarker>
<includeMdcData>true</includeMdcData>
<includeCallerData>false</includeCallerData>
<includeRootCauseData>false</includeRootCauseData>
<includeLevelName>false</includeLevelName>
<shortPatternLayout class="ch.qos.logback.classic.PatternLayout">
<pattern>%m%nopex</pattern>
</shortPatternLayout>
<fullPatternLayout class="ch.qos.logback.classic.PatternLayout">
<pattern>%m</pattern>
</fullPatternLayout>
<staticField>app_name:backend</staticField>
<staticField>os_arch:${os.arch}</staticField>
<staticField>os_name:${os.name}</staticField>
<staticField>os_version:${os.version}</staticField>
</layout>
</appender>
<root level="debug">
<appender-ref ref="GELF" />
<appender-ref ref="CONSOLE" />
</root>
</configuration>
For more information: logback-gelf
I currently have the following logger defined in my logback.xml:
<logger name="Event" level="INFO" additivity="false">
<appender-ref ref="STDOUT"/>
</logger>
Is it possible to override the level here using an environment variable? I am using SpringBoot.
I have tried having these defined as ENV variables:
LOGGING_LEVEL_ROOT=ERROR
LOGGING_LEVEL_EVENT=ERROR
LOGGER_LEVEL_EVENT=ERROR
However none of these worked.
Spring Boot supports springProfile extension for the logback configuration file:
<springProfile name="test"> </springProfile>
Documentation
Also there is another way to do it using LoggingApplicationContextInitializer.
I am trying to configure Log4j 2 in Spring XML configuration file for the first time (but unsuccessfully). I need to create two appenders - one for logging into console (>=DEBUG) and another for logging into database via JDBCAppender (>= INFO).
There is a problem because I don't know how to set another log level logger that differs from root logger.
Thank you for sharing some XML configuration sample. Thanks in advance!
You can set the level on the appender ref.
<?xml version="1.0" encoding="UTF-8"?>
<configuration status="WARN">
<appenders>
<appender name="A">
...
</appender>
<appender name="B">
...
</appender>
</appenders>
<loggers>
<root level="trace">
<appender-ref ref="A" level="info"/>
<appender-ref ref="B" level="debug"/>
</root>
</loggers>
</configuration>
I want to see the actual parameters of my SQL queries when I use Hibernate. I add this to my logback.xml to see the queries (with question marks):
<logger name="org.hibernate.type" level="TRACE" />
but to no effect.
Is there any special configuration necessary?
OnConsoleStatusListener shows me the correct configuration
23:48:15,246 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [org.hibernate.type] to TRACE
but no output from org.hibernate.type package.
I'm using Spring with Jpa.
Things you have to make sure:
Are you sure that SLF4J + LogBack is working in your app?
Is your logger pointing to any appender?
Have you configured an appended?
<configuration>
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<!-- "application-name" is a variable -->
<File>c:/logs/${application-name}.log</File>
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>%d %p %t %c - %m%n</Pattern>
</layout>
</appender>
<root level="debug">
<appender-ref ref="FILE"/>
</root>
</configuration>
I'm using this configuration, and it works for me:
<logger name="org.hibernate.type" level="trace" additivity="false">
<appender-ref ref="consoleAppender" />
</logger>
The logger that works for me is the following:
<logger name="org.hibernate.type" level="TRACE" />