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/${application-name}.log</File>
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>%d %p %t %c - %m%n</Pattern>
</layout>
</appender>
<root level="debug">
<appender-ref ref="FILE"/>
</root>
</configuration>
I'm using this configuration, and it works for me:
<logger name="org.hibernate.type" level="trace" additivity="false">
<appender-ref ref="consoleAppender" />
</logger>
The logger that works for me is the following:
<logger name="org.hibernate.type" level="TRACE" />
Related
I have a small AWS Lambda function written in Java with a Logback attached to it for sending out error log emails. The variables needed for the Logback appender (basic SMTP details) are loaded into the Logback.xml configuration appender SMTPAppender in the usual format of "${smtpPort}" etc. The variables are maintained through the Lambda Function Environment variable: key=JAVA_TOOL_OPTIONS, value=-DsmtpPort=587 -DsmtpHost=xyz.
Here is the logback.xml configuration:
<configuration debug="true">
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{ISO8601} %-5p [%t] %c - %m%n</pattern>
</encoder>
</appender>
<appender name="EMAIL" class="ch.qos.logback.classic.net.SMTPAppender">
<smtpPort>${smtpPort}</smtpPort>
<STARTTLS>${startTls}</STARTTLS>
<smtpHost>${smtpHost}</smtpHost>
<username>${smtpUser}</username>
<password>${smtpPassword}</password>
<to>${logEmailTo}</to>
<from>xxxx#xxxxxxxx.net</from>
<subject>Error log [Scheduled Task Runner]</subject>
<layout class="ch.qos.logback.classic.html.HTMLLayout">
<pattern>%date%thread%level%logger%msg</pattern>
<cssBuilder class="LambdaHandlers.util.ErrorEmailCssBuilder"/>
</layout>
<cyclicBufferTracker class="ch.qos.logback.core.spi.CyclicBufferTracker">
<!-- send just 10 log entries per email -->
<bufferSize>10</bufferSize>
</cyclicBufferTracker>
</appender>
<logger name="org.apache.commons.httpclient" level="OFF"/>
<logger name="httpclient.wire.header" level="OFF"/>
<logger name="httpclient.wire.content" level="OFF"/>
<logger name="httpclient.wire" level="OFF"/>
<logger name="org.apache.http" level="OFF"/>
<logger name="io.micrometer" level="INFO"/>
<logger name="software.amazon.awssdk" level="OFF"/>
<logger name="io.netty" level="OFF"/>
<logger name="org.apache.catalina.realm" level="DEBUG"/>
<logger name="org.apache.axis" level="INFO"/>
<root level="debug">
<appender-ref ref="STDOUT"/>
<appender-ref ref="EMAIL"/>
</root>
</configuration>
When the values are hardcoded in the logback.xml the email sending works as expected, however; after moving these to the JAVA_TOOL_OPTIONS bucket, the email stop working. The Lambda environment variables are correctly loaded on Lambda startup and can be accessed through the System.getProperty() in the Lambda context, providing the values from the environment variable.
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 have a java package with specialized operations. Specialized in the sense that they are rarely used and i don't want to have them be mixed with normal logging.
I know that adding logging.file=myapplication.log will redirect the logging to this file but is there a way to specify only logging from specific packages to another file? Like logging.file.my.package=special.log ?
It's not possible with the logging configuration Spring Boot provides. However, you can fall back upon the configuration that the logging framework provides. By default, this is Logback, which can be configured to log to multiple logging files.
To do that, you need to add a logback.xml file to your classpath and configure multiple appenders. For example:
<appender name="FILE1" class="ch.qos.logback.core.FileAppender">
<file>log1.log</file>
<append>true</append>
<encoder>
<pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
<appender name="FILE2" class="ch.qos.logback.core.FileAppender">
<file>log2.log</file>
<append>true</append>
<encoder>
<pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
And now you can define a separate logger in case you want to log to a different file. Make sure to add the additivity="false" otherwise, the log message will still be printed in both log files:
<logger name="com.example.apps.special-package" level="INFO" additivity="false">
<appender-ref ref="FILE2" />
</logger>
<root level="INFO">
<appender-ref ref="FILE1" />
</root>
In this case, all logs will be written to log1.log (FILE1 appender), while logs from the package com.example.apps.special-package will be written to log2.log (FILE2 appender).
Spring uses Logback as default logger. According to the official doc you can setup logback.xml yourself to add to the default logging mechanism your 'special' behavior:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include resource="org/springframework/boot/logging/logback/defaults.xml" />
<property name="LOG_FILE" value="${LOG_FILE:-${LOG_PATH:-${LOG_TEMP:-${java.io.tmpdir:-/tmp}}/}spring.log}"/>
<include resource="org/springframework/boot/logging/logback/file-appender.xml" />
<include resource="org/springframework/boot/logging/logback/console-appender.xml" />
<property name="SPECIAL_FILE_NAME" value="special"/>
<appender name="SPECIAL_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<encoder>
<pattern>%date{yyyy-MM-dd HH:mm:ss.SSS} [%-10.10thread] %-5level %30.30logger{29}:%-4line %msg%n</pattern>
<charset>utf8</charset>
</encoder>
<file>logs/${SPECIAL_FILE_NAME}.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>logs/${SPECIAL_FILE_NAME}-%i.log</fileNamePattern>
</rollingPolicy>
<triggeringPolicy
class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<MaxFileSize>10MB</MaxFileSize>
</triggeringPolicy>
</appender>
<logger name="logging.file.my.package" level="debug" additivity="false">
<appender-ref ref="SPECIAL_FILE"/>
</logger>
<root level="INFO">
<appender-ref ref="FILE" />
<appender-ref ref="CONSOLE" />
</root>
</configuration>
Here we use Spring default FILE and CONSOLE appenders to log app info as usual (except logging.file.my.package), and use SPECIAL_FILE appender to log info from this package to file log/special.log.
How can I disable the following logging from org.springframework.data.mongodb.core.MongoDbUtils:
DEBUG o.s.data.mongodb.core.MongoDbUtils - Getting Mongo Database name=[erepprod]
I have tried the following in my log4j.properties file:
log4j.category.org.springframework.data.mongodb.core.MongoDbUtils=ERROR,console
log4j.logger.org.springframework.data.mongodb.core.MongoDbUtils=ERROR,console
But the message is still being logged.
Any help would be appreciated as I have spent two days trying to get rid of this message.
Probably a bit late, but for anyone else having the problem,
I know from using Spring Boot that they seem to prefer now SL4J + Logback
So by adding a logback.xml that looked like below.. solved it:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d %5p | %t | %-55logger{55} | %m %n</pattern>
</encoder>
</appender>
<logger name="org.springframework.data.mongodb">
<level value="INFO" />
</logger>
<root>
<level value="INFO" />
<appender-ref ref="CONSOLE" />
</root>
</configuration>
As specified in title I'm using Maven, and Jetty. For logging using SLF4J and Logback. I have 'logback.xml' at 'src/main/resources'.
<configuration>
<appender name="STDOUT"
class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%-4relative [%thread] %-5level %class - %msg%n</pattern>
</layout>
</appender>
<appender name="FILE"
class="ch.qos.logback.core.FileAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%-4relative [%thread] %-5level %class - %msg%n</pattern>
</layout>
<File>myLog.log</File>
</appender>
<logger name="org.mortbay">
<level value="debug" />
</logger>
<root>
<level value="error" />
<appender-ref ref="STDOUT" />
<appender-ref ref="FILE" />
</root>
</configuration>
But my problem is its not creating the file 'myLog.log' if I run/debug the project. What's the solution to get the log file.
Is there any way to get the log file only with SLF4J?
Sorry! I misunderstood the usage of 'Logback'. I got solution from http://www.mail-archive.com/user#slf4j.org/msg00661.html
i.e.
It appears that you have misunderstood
the purpose of SLF4J. If you place
slf4j-jdk14-1.5.6.jar then slf4j-api
will bind with java.util.logging.
Logback will not be used. Only if you
place logback-core.jar and
logback-classic.jar on your class path
(but not slf4j-jdk14-1.5.6.jar) will
SLF4J API bind with logback. SLF4J
binds with one and only one underlying
logging API (per JVM launch).
HTH,
Thanks to Ceki Gulcu. Now I can able to get logs in my file.
If you are using JBoss 5.1 and you are having the same problem[logback not writing to file] then add the following in jboss-web.xml.
<class-loading>
<loader-repository>
com.hp:classloader=logback-slf4j
<loader-repository-config>java2ParentDelegation=false</loader-repository-config>
</loader-repository>
</class-loading>
This should solve your problem.