不打印日志的外部 Log4j.properties - spring boot 2.2.1

Question

在 2.2.1 RELEASE 中开发一个 spring boot 应用程序。除了使用 log4j.properties 进行日志记录外，一切都运行良好。

在apoplication.properies 中，添加如下所示的logging.config

logging.config =${external.config}/log4j.properties.

Pom.xml 文件，排除spring-boot-starter-logging 并添加spring-boot-starter-log4j，如下所示

   <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-log4j2</artifactId>
    </dependency>

log4j.properties

log4j.rootLogger=error,Service  
# Direct log messages to a log file
log4j.appender.Service=org.apache.log4j.RollingFileAppender
log4j.appender.Service.File=C:/log/Service.log
log4j.appender.Service.MaxFileSize=1MB
log4j.appender.Service.MaxBackupIndex=1
log4j.appender.Service.layout=org.apache.log4j.PatternLayout
log4j.appender.Service.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - [%X{AUDIT_USER}] %m%n

我在堆栈中引用了以下链接

1.Logger not printing with log4j.properties within Spring Boot 1.5.7

2.Spring boot logging with log4.properties file in not working

编辑 1

作为Andy Wilkinson cmets，我修改了log4j.properties的文件内容和文件名，文件名应该是log4j2.properties。

我尝试将一些字符串记录到日志文件中，如下所示

public class ServiceMain {

    private static final Logger logger = LogManager.getLogger(ServiceMain.class);
    public static void main(String[] args) {

        SpringApplication.run(ServiceMain.class, args);
        logger.debug("----------------------Stating spring booot----------------------");



    }

} 

调试日志"----------------------Stating spring booot----------------------" 不会写入c:/log/service.log

日志文件

2019-11-22 05:20:14,631 INFO o.s.b.StartupInfoLogger [main] Starting ServiceMain v7.0.0.0 on host-4 with PID 119176 (D:\Service\target\Service-1.0.jar started by Administrator in D:\Service\target)
2019-11-22 05:20:14,634 DEBUG o.s.b.StartupInfoLogger [main] Running with Spring Boot v2.2.1.RELEASE, Spring v5.2.1.RELEASE
2019-11-22 05:20:14,635 INFO o.s.b.SpringApplication [main] The following profiles are active: Service
2019-11-22 05:20:24,898 INFO o.s.b.StartupInfoLogger [main] Started ServiceMain in 12.312 seconds (JVM running for 14.189)

我错过了任何log4j2.properties 配置吗？

Answer 1

您正在使用 Log4j 2（您应该使用它，因为版本 1 不再受支持），但似乎正在使用 Log4j 1 配置文件对其进行配置。

您可以在其documentation 中了解有关 Log4j 2 配置属性的更多信息。它包括这个例子：

status = error
dest = err
name = PropertiesConfig

property.filename = target/rolling/rollingtest.log

filter.threshold.type = ThresholdFilter
filter.threshold.level = debug

appender.console.type = Console
appender.console.name = STDOUT
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = %m%n
appender.console.filter.threshold.type = ThresholdFilter
appender.console.filter.threshold.level = error

appender.rolling.type = RollingFile
appender.rolling.name = RollingFile
appender.rolling.fileName = ${filename}
appender.rolling.filePattern = target/rolling2/test1-%d{MM-dd-yy-HH-mm-ss}-%i.log.gz
appender.rolling.layout.type = PatternLayout
appender.rolling.layout.pattern = %d %p %C{1.} [%t] %m%n
appender.rolling.policies.type = Policies
appender.rolling.policies.time.type = TimeBasedTriggeringPolicy
appender.rolling.policies.time.interval = 2
appender.rolling.policies.time.modulate = true
appender.rolling.policies.size.type = SizeBasedTriggeringPolicy
appender.rolling.policies.size.size=100MB
appender.rolling.strategy.type = DefaultRolloverStrategy
appender.rolling.strategy.max = 5

logger.rolling.name = com.example.my.app
logger.rolling.level = debug
logger.rolling.additivity = false
logger.rolling.appenderRef.rolling.ref = RollingFile

rootLogger.level = info
rootLogger.appenderRef.stdout.ref = STDOUT