Spring boot ships with several default logging framework configurations including Log4j2. While there is detailed documentation about logging in the Spring boot reference manual it does not mention how and where exactly the default log pattern is configured, which makes it difficult to override this.
The question is where does Spring Boot configure the default log pattern of for Log4j2?
So far I have looked in the following places of Spring Boot:
AutoConfigurationReportLoggingInitializer
LoggingApplicationListener
SimpleFormatter
LoggingSystem
Log4J2LoggingSystem
It seems the Log4J2 configuration is not done in any Java class so I was looking at the wrong place. Spring Boot ships with two files log4j2.xml and log4j2-file.xml which contain the default configuration and can be found in org.springframework.boot.logging.log4j2.
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I'm using spring-boot-starter 2.3.3.RELEASE version. I'm running my spring cloud configuration server in native profile (looking for configuration files in file system). I added
logging.file = /var/log/config.log in application.properties file. But my application is not logging logs to this file.(All other microservices are logging to this location). Am I missing any additional settings for Spring cloud config server? Thank you so much for your help.
In the spring boot 2.3.3 RELEASE documentation the logging properties that specify where the location should be is indicated using the property:
logging.file.path={path}
The documentation:
https://docs.spring.io/spring-boot/docs/2.3.3.RELEASE/reference/htmlsingle/#boot-features-logging-file-output
This modification from logging.path to logging.file.path appears as a deprecation in Spring Boot 2.2:
https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.2-Release-Notes#deprecations-in-spring-boot-22
One way to do it with spring-boot application is, setting it from command line argument as default it will dump every thing on console.
logging.file=logs/test.log
Old school but far effective, save path in application.properties
logging.file=logs/test.log
We need to configure SlowQueryReport Tomcat interceptor in our Spring boot application, specifically threshold value in properties files. Couldn't find anything on the web. Any help?
We used the old syntax (see below, note the given threshold) in the configuration file and it worked:
spring.datasource:
tomcat.jdbc-interceptors: org.apache.tomcat.jdbc.pool.interceptor.SlowQueryReport(threshold=10);any.other.tomcat.Interceptor
I am new to spring boot project.
Currently I am working on a project with spring boot, Jcache with ehcache implementation.
I am trying to understand how spring boot autoconfigures the Cache Framework. I did my own research and identified spring boot #EnableAutoConfiguration reads the spring.factories file and autoconfigures the Cache related beans based on the classes available in classpath.
Here is the Spring Boot Cache auto configure Java based Configuration file available under spring.factories file
org.springframework.boot.autoconfigure.cache.CacheAutoConfiguration,\
but for Jcache “ JCacheCacheConfiguration.java” is the Spring Boot auto configuration file , But this file is not available under spring.factroies file in autoconfigurer.jar file.
Then how spring boot auto configures the Jcache without entry in spring.factories file?
JCache implementations are providing a service (in META-INF). So Spring can found the implementation magically. The simpler is #EnableCaching which will find the provider and give you caching right away.
Then, you will want to provide a specific caching configuration. The easiest is by specifying spring.cache.jcache.config=ehcache.xml in your application.properties.
That's it. You will find a more complicated and Java (no xml) configuration in ehcache sample and pet clinic.
Well i'm building some personal project to learn spring roo 2. Now i'm struggling with spring security. There is little information about spring roo 2 in google and many relatively useful information on spring boot relating to spring roo.
with the command "security setup" you got the "--provider" option.
This is the description that the help gives you:
optional --provider: The Spring Security provider to install. Possible values are: DEFAULT (default Spring Security configuration provided by Spring Boot will be used), and SPRINGLETS_JPA (advanced Spring Security configuration will be included using Springlets JPA Authentication).; default: 'DEFAULT'
I couldn't find the difference between these two options, even on the spring roo M3 reference documentation. Even searching for "Springlets JPA Authentication" gives no information about it.
Anyone has any clue about this?
Thanks
These are the main differences between this two providers:
DEFAULT: Is the default Spring Security auto-configuration provided by Spring Boot when you include the spring-boot-starter-security in your project classpath. This is the default option because Spring Roo always tries to generate applications that use the auto-configuration provided by Spring Boot.
Selecting this provided the following changes will be applied to your project:
spring-boot-starter-security dependency will be included to your pom.xml file
If you want to know more information about this configuration you should check the spring boot reference guide
SPRINGLETS_JPA: If you select this provider, the default Spring Security auto-configuration provided by Spring Boot will be used. In addition, this provider will include the Springlets library to your classpath that provides you some extra starters to auto-configure advanced Spring Security properties. Also, configures the security authentication to use and user from the database instead of the default in-memory authentication provided by Spring Boot auto-configuration. You will be able to manage these configuration using the application.properties file and including the properties springlets.security.auth.in-memory.enabled and springlets.security.auth.in-memory.erase-credentials.
Selecting this provided the following changes will be applied to your project:
springlets-boot-starter-authentication dependency will be included to your pom.xml file
security.enable-csrf=true property will be included to enable CSRF. Know more about CSRF and Spring Security here
To know more about the Springlets Security project check the Springlets project page
Hope it helps,
How to set the logging level of embedded tomcat in Spring Boot?
Especially I need to see the tomcat clustering-related logs.
I added the following line to the application.properties, but tomcat seems to log only INFO level logs.
logging.level.org.apache.catalina=TRACE
Is there a simple method to accomplish this?
It would be best to know the Spring Boot and embedded tomcat-specific, simple solution, preferably only editing application.properties.
In short, use Spring Boot version 1.3.0 with Logback. (I was using Spring Boot 1.2.4)
Spring Boot 1.3.0 adds LevelChangePropagator to LogbackLoggingSystem.java (see this commit), thus the logging level that is set in application.properties is propagated to the jul(java.util.logging) which tomcat uses.
Otherwise, one must set the logging level for the logger in the logging.properties for the jul if the level is below the INFO level which is the default, AND also set the logging level for the logger in the application.properties. This is for the limitation of jul-to-slf4j module which cannot completely override jul implementation since jul is in the java.* package.
Also see the following Spring Boot issues: Optimize JUL logging #2585, Slf4JLoggingSystem should also configure JUL levels #2923.
And this is the related StackOverflow question: Spring Boot - set logging level of external jar which is using Java Util Logging (jul). Actually this is the problem I was facing.
(I will accept this answer if no better answer is posted for a few days from now.)