How do you specify the settings file in Maven?

In Maven, we can specify the location of the settings.xml file using the -s or –settings parameter.

When running Maven from the command line, add the -s parameter after the mvn command, followed by the path to the settings.xml file, as shown below:

mvn -s /path/to/settings.xml clean install

If the settings.xml file is located at the default location (~/.m2/settings.xml), there is no need to specify the file.

In addition, you can also specify a global settings file in the Maven settings.xml for building all projects. Within the settings.xml file, you can use the tag to specify active configuration profiles, as shown below:

<settings>
    ...
    <activeProfiles>
        <activeProfile>profile1</activeProfile>
    </activeProfiles>
    ...
</settings>

Then, create a file named settings-profile1.xml in the ~/.m2 directory, containing the configurations you desire. This way, when you run Maven, it will automatically load the configurations from the settings-profile1.xml file.