What I want is to make spring autowire a logger. So, in other words, I want to have this working: Right now it throws an exception at startup: “No qualifying bean of type [org.slf4j.Logger] found for dependency…”. My pom.xml dependencies: I read this: http://docs.spring.io/spring-boot/docs/c…
Tag: logging
Stop displaying logger output to console from dependencies
I have a few Maven dependencies in my Java project that clutter the console output with redundant log info. I want to disable such logging. Setting the additivity property to false might help. But could not use it properly. I am looking for a log4j.xml config that will only print log output (warn, error, R…
how to log only one level with log4j2?
I’m using log4j2 in my application. What I want is everything up to ‘debug’ to go to console, everything up to ‘info’ to go to myapp.log, and ONLY ‘info’ to go to ‘myapp-audit.log’. The reason is, INFO mostly consists of successful modifications to data (e…
Log4J creates log file but does not write to it
I’m trying to configure log4j to log messages to a file. Right now, the file does get created with the name I provide, but the logs are not written to the file. My code: Contents of my log4j.properties file: When I run this, I get this output in the console: The file log.log does get created in my main …
How do I configure log4j to send log events to java.util.logging using JULAppender?
I am familiar with the java.util.logging (JUL) framework, I use it extensively. Recently, I started using a library that does its logging through log4j. When I start my application I now get the following printed on the console: It appears that log4j has a solution for this: JULAppender which will send everyt…
Throw exception vs Logging
Is the following way to code good practice? Moreover, should I.. use only the logger? throw only the exception? do both? I understand that with throw I can catch the exception in another part of the callstack, but maybe additional logging has some hidden benefits and is useful as well. Answer I use both in so…
LOG4J in Android
I have a Java Project with a lot of files, which is using LOG4J. Now I am trying to Port it to the Android platform. Is it possible to reuse the code as it is, with LOG4J function calls? Current understanding: Property configuration won’t work (beans dependency) I tried with LOG4J for Android and SL4J L…
Is it fine to do logs in java class with thread id?
When we add logs in to the java class (using log4j), Is it fine to add thread id with that log messages? is it a bad practice? My idea was to add this thread id; Once we examine a log file of a multithreaded application, it is difficult to find out the correct flow using logs. (As an example, say
log4j configurations with daily rolling, gzip and max backup files
Is there an appender that I can use that will get me daily rolling, compression and max files? I can get daily rolling file with compression using apache-log4j-extras with this configuration: But I can’t specify MaxBackupIndex as in org.apache.log4j.RollingFileAppender (note the slight namespace differe…
Wildcard pattern for RoutingAppender of Log4j2
I am trying to use the new RoutingAppender of Log4j2 to route the different logs based on the MDC (ThreadContext in Log4j2). What I want to do is the following: If MDC map has $contextId -> Append to $contextId appender (specific log) If MDC does not have $contextId -> Append to main appender (general l…