Spring Boot Logback logging DEBUG messages

Question

I'm having trouble with Spring Boot spitting DEBUG level log items to terminal, when it should be in INFO level.

logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <layout class="ch.qos.logback.classic.PatternLayout">
            <Pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern>
        </layout>
    </appender>

    <root level="INFO">
        <appender-ref ref="STDOUT" />
    </root>

    <logger name="org.springframework.web" level="WARN"/>

</configuration>

Dependencies in pom.xml (omitted everything that doesn't concern logging)

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <!-- Logging -->
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>${logback.version}</version>
    </dependency>
</dependencies>

The lines that keep showing up in terminal

20:01:00.937 [main] DEBUG o.s.c.e.PropertySourcesPropertyResolver - Searching for key 'serverServletmapping' in [servletConfigInitParams]
20:01:00.937 [main] DEBUG o.s.c.e.PropertySourcesPropertyResolver - Searching for key 'serverServletmapping' in [servletContextInitParams]
20:01:00.937 [main] DEBUG o.s.c.e.PropertySourcesPropertyResolver - Searching for key 'serverServletmapping' in [systemProperties]
20:01:00.937 [main] DEBUG o.s.c.e.PropertySourcesPropertyResolver - Searching for key 'serverServletmapping' in [systemEnvironment]
20:01:00.937 [main] DEBUG o.s.c.e.PropertySourcesPropertyResolver - Searching for key 'serverServletmapping' in [random]
20:01:00.937 [main] DEBUG o.s.c.e.PropertySourcesPropertyResolver - Searching for key 'serverServletmapping' in [applicationConfig: [classpath:/application.properties]]
20:01:00.938 [main] DEBUG o.s.c.e.PropertySourcesPropertyResolver - Searching for key 'serverServletmapping' in [class path resource [sql.properties]]
20:01:00.938 [main] DEBUG o.s.c.e.PropertySourcesPropertyResolver - Searching for key 'serverServletmapping' in [localProperties]
20:01:00.938 [main] DEBUG o.s.c.e.PropertySourcesPropertyResolver - Could not find key 'serverServletmapping' in any property source. Returning [null]
20:01:00.938 [main] DEBUG o.s.core.env.MutablePropertySources - Adding [servletConfigInitParams] PropertySource with lowest search precedence
20:01:00.938 [main] DEBUG o.s.core.env.MutablePropertySources - Adding [servletContextInitParams] PropertySource with lowest search precedence
20:01:00.938 [main] DEBUG o.s.core.env.MutablePropertySources - Adding [systemProperties] PropertySource with lowest search precedence
20:01:00.938 [main] DEBUG o.s.core.env.MutablePropertySources - Adding [systemEnvironment] PropertySource with lowest search precedence
20:01:00.938 [main] DEBUG o.s.core.env.MutablePropertySources - Adding [random] PropertySource with lowest search precedence
20:01:00.938 [main] DEBUG o.s.core.env.MutablePropertySources - Adding [applicationConfig: [classpath:/application.properties]] PropertySource with lowest search precedence
20:01:00.938 [main] DEBUG o.s.core.env.MutablePropertySources - Adding [class path resource [sql.properties]] PropertySource with lowest search precedence

Answer 1

It looks like logback did not find your logback.xml file. Please refer to logback documentation on config file location .

Configuration files such as logback.groovy , logback-test.xml or logback.xml can be located directly under any folder declared in the class path. For example, if the class path reads c:/java/jdk15/lib/rt.jar;c:/mylibs/ then the logback.xml file should be located directly under c:/mylibs/ , that is as c:/mylibs/logback.xml .

Placing it under a sub-folder of c:/mylibs/ , say, c:/mylibs/other/ , will not work.

For web-applications, configuration files can be placed directly under WEB-INF/classes/ .

Answer 2

<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
    <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
        <level>ERROR</level>
    </filter>
    <encoder>
        <pattern>%d{HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n
        </pattern>
    </encoder>
</appender>

add this filter