Spring Boot日志的分析是怎样的

<dependency>  <groupId>org.springframework.boot</groupId>  <artifactId>spring-boot-starter-logging</artifactId>  <version>2.3.1.RELEASE</version>  <scope>compile</scope></dependency>

        <dependency>            <groupId>org.slf4j</groupId>            <artifactId>slf4j-log4j12</artifactId>            <version>1.7.25</version>        </dependency>

#配置了日志级别为 INFO，预定义了名称为 console、file 两种附加器log4j.rootLogger=INFO, console, file
log4j.appender.console=org.apache.log4j.ConsoleAppenderlog4j.appender.console.layout=org.apache.log4j.PatternLayoutlog4j.appender.console.layout.ConversionPattern=%d %p [%c] - %m%n#每天一个文件log4j.appender.file=org.apache.log4j.DailyRollingFileAppenderlog4j.appender.file.File=logs/log.loglog4j.appender.file.layout=org.apache.log4j.PatternLayout#最大文件log4j.appender.A3.MaxFileSize=1024KB#最多10个log4j.appender.A3.MaxBackupIndex=10log4j.appender.file.layout.ConversionPattern=%d %p [%c] - %m%n

@SpringBootApplicationpublic class SpringbootTestApplication {
    public static final Logger logger = LoggerFactory.getLogger(SpringbootTestApplication.class);
    public static void main(String[] args) {        SpringApplication.run(SpringbootTestApplication.class, args);
        logger.info("INFO -------日志");        logger.debug("DEBUG -----日志");        logger.warn("WARN--------日志");        logger.error("ERROR------日志");        // 占位符        String message = "SLF4J第一个";        String message2 = "SLF4J第二个";        logger.info("slf4j message is : {} {}", message,message2);
    }