Micronaut Logging using Logback
Discover how to efficiently implement logging in your Micronaut applications using default Logback framework. Logging to the console, standard files, and rolling files with practical examples.
Jersey and JSON examples (EclipseLink MOXy)
This article shows how to return a JSON response in the Jersey application, using EclipseLink MOXy. Tested with Jersey 3.0.2 EclipseLink MOXy 3 Jetty 11, HTTP Server Java 11 Maven 3 SLF4J, Logback, redirect Jersey J.U.L logs to logback JUnit 5 and JSONassert 1.5 (Unit Test) org.json 20210307, JSONObject Table of contents 1. EclipseLink MOXy […]
Spring Boot Test – How to disable DEBUG and INFO logs
Run the Spring Boot integration test or unit test, many annoying DEBUG and INFO logs are displayed in the console. P.S Tested with Spring Boot 2 Console 2019-03-04 13:15:25.151 INFO — [ main] .b.t.c.SpringBootTestContextBootstrapper : 2019-03-04 13:15:25.157 INFO — [ main] o.s.t.c.support.AbstractContextLoader : 2019-03-04 13:15:25.158 INFO — [ main] t.c.s.AnnotationConfigContextLoaderUtils : 2019-03-04 13:15:25.298 INFO — […]
How to stop logback status INFO at the start of every log?
The logbook will output its own status (INFO or WARN) at the start of the program, it’s really annoying! 15:34:46,181 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Could NOT find resource [logback.groovy] 15:34:46,181 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Could NOT find resource [logback-test.xml] 15:34:46,181 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Found resource [logback.xml] at [file:/E:/spring-boot-simple/target/classes/logback.xml] 15:34:46,247 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction – debug […]
Spring Boot Logging Example
This article will demonstrate Spring Boot Logging using the Logback SLF4J implementation. Technologies used: Spring Boot 3.2.2 Java 17 Maven 3 Table of contents: 1. Project Directory 2. Spring Boot Logging Dependencies 3. Spring Boot Logging using Logback 3.1. Log Example 3.2 Log variables 4. Log to File 4.1 File Rotation 5. Log Levels 6. […]
Logback – Set log file name programmatically
In Logback, it is easy to set a log file name programmatically : In logback.xml, declares a variable like ${log.name} In Java, set the variable via System.setProperty(“log.name”, “abc”) 1. Full example 1.1 A logback file, we will set the ${log.name} variable later. src/main/resources/logback.xml <?xml version="1.0" encoding="UTF-8"?> <configuration> <property name="PRO_HOME" value="/home/mkyong/ant/logs" /> <property name="USER_HOME" value="${PRO_HOME}" /> […]
Logback – Disable logging in Unit Test
While the unit test is running in the IDE, the Logback is showing a lot of configuration or status like this : 21:16:59,569 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Could NOT find resource [logback.groovy] 21:16:59,569 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Could NOT find resource [logback-test.xml] 21:16:59,569 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Found resource [logback.xml] at … //… omitted for […]
Spring MVC + Logback SLF4j example
In this tutorial, we will show you how to setup slf4j and logback in a Spring MVC web application. Technologies used : Spring 4.1.6.RELEASE Logback 1.1.3 Maven 3 or Gradle 2.0 Tomcat 7 Eclipse 4.4 Note By default, Spring is using the Jakarta Commons Logging API (JCL), read this. To setup logback framework you need […]
Logback – different log file for each thread
In this tutorial, we will show you how to use Logback Mapped Diagnostic Context (MDC) and SiftingAppender to create a separate log file for each thread. P.S Tested with Logback 1.1.2, should work in earlier version. Note More info, refer to this Logback MDC documentation 1. logback.xml example A logback.xml file to show you how […]
logback.xml Example
Here are a few logback.xml examples that are used in my projects, just for sharing. P.S Tested with Logback 1.2.3 1. Send logs to Console All logging will be redirected to console. logback.xml <configuration> <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender"> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern> %d{HH:mm:ss.SSS} [%t] %-5level %logger{36} – %msg%n </Pattern> </layout> </appender> <logger name="com.mkyong" level="debug" additivity="false"> <appender-ref ref="CONSOLE"/> […]
Logback – Duplicate log messages
Review a simple Java application and log a message via Logback. App.java package com.mkyong.test; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class App { private static final Logger log = LoggerFactory.getLogger(App.class); public static void main(String[] args) { log.debug("Testing"); } } P.S Tested with Logback 1.1.2 1. Problem A simple logback.xml to log a message to console. logback.xml […]
How to configure logging in Hibernate – Logback
In this tutorial, we show how to integrate Logback logging framework with Hibernate. Tools and Technologies used in this tutorial : Hibernate 3.6.3.Final slf4j-api-1.6.1 logback-core-0.9.28 logback-classic-0.9.28 Eclipse 3.6 Maven 3.0.3 1. Get SLF4j + Logback To use logback in Hibernate web application, you need 3 libraries : slf4j-api.jar logback-core logback-classic File : pom.xml <project …> […]