Spring Boot ignoring logback-spring.xml

Question

I have 2 Spring Boot (1.4.1-RELEASE) console applications using Logback. Both configuration files are more or less identical, are located in my /src/main/resources

Answer 1

Ok.

I know this is a maven question. But you can 'translate' gradle talk into maven.

The gist of the idea is:

In my root build.gradle file.

I had to exclude these items. The way gradle does it, is this is a "global to this project" type of exclude, so it gets them ALL in one place. But you can do the same "excluding"/scrubbing in maven, it will just look different. The groupid/artifactid's are what is important.

allprojects {


    configurations {
     
        all {
            exclude group: 'org.springframework.boot', module: 'spring-boot-starter-logging'
            exclude group: 'org.springframework.boot', module: 'spring-boot-starter-log4j2'
        }
    }


}

Then in my (top layer) build.gradle (I don't have a monolith, I have a project with multiple modules). I added these dependencies:

implementation group: 'ch.qos.logback', name: 'logback-classic', version: logbackClassicVersion
    
implementation group: 'org.slf4j', name: 'slf4j-api', version: slf4jVersion

My variable values for the two versions happen to be (at this time of writing this post)

    slf4jVersion = "1.7.30"
    logbackClassicVersion = '1.2.3'

How do you find the 2 versions that play nice together?

For example, if you look at:

https://mvnrepository.com/artifact/ch.qos.logback/logback-classic/1.2.3

and find the "compile dependencies", you'll see that

logback-classic/1.2.3

has

org.slf4j » slf4j-api 1.7.25 1.7.30

so somewhere between 1.7.25 and 1.7.30 will play nice with logback-classic/1.2.3

There's probably a better way, but that's how I "get close" at the dependency game.

    slf4jVersion = "1.7.30"
    logbackClassicVersion = '1.2.3'

But you would be better going to maven repostitory or jcenter and finding latest version but also versions that of these 2 things that play nice with each other.