Java使用SLF4J记录不同级别日志的示例详解

<dependencies>
    <!-- SLF4J API -->
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>2.0.9</version>
    </dependency>
    <!-- Logback Classic 实现 -->
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.4.11</version>
    </dependency>
</dependencies>

<configuration>
    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%date %level [%thread] %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="FILE" class="ch.qos.logback.core.FileAppender">
        <file>logs/app.log</file>
        <encoder>
            <pattern>%date %level [%thread] %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <root level="info">
        <appender-ref ref="CONSOLE" />
        <appender-ref ref="FILE" />
    </root>
</configuration>

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LoggingExample {
    private static final Logger logger = LoggerFactory.getLogger(LoggingExample.class);
}

public class LoggingExample {
    private static final Logger logger = LoggerFactory.getLogger(LoggingExample.class);

    public static void main(String[] args) {
        // 记录trace级别的日志
        logger.trace("这是一个trace级别的日志");

        // 记录debug级别的日志
        logger.debug("这是一个debug级别的日志");

        // 记录info级别的日志
        logger.info("这是一个info级别的日志");

        // 记录warn级别的日志
        logger.warn("这是一个warn级别的日志");

        // 记录error级别的日志
        logger.error("这是一个error级别的日志");
    }
}