简单引入logback

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>cn.zno</groupId>
    <artifactId>simple-logback</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <dependencies>
        <!-- logback -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
            <version>1.1.3</version>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.1.3</version>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-access</artifactId>
            <version>1.1.3</version>
        </dependency>
    </dependencies>
</project>

Test.java

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
 
public class Test {
 
    public static void main(String[] args) {
        TestLogback tl = new TestLogback();
        tl.printLog();
    }
 
}
 
class TestLogback {
    private final Logger logger = LoggerFactory.getLogger(TestLogback.class);
 
    public void printLog() {
        logger.trace("It is trace");
        logger.debug("It is debug");
        logger.info("It is info");
        logger.warn("It is warn");
        logger.error("It is error");
    }
}

控制台打印：

::37.093 [main] DEBUG TestLogback - It is debug
::37.109 [main] INFO  TestLogback - It is info
::37.109 [main] WARN  TestLogback - It is warn
::37.109 [main] ERROR TestLogback - It is error