java Log4J2在以编程方式读取属性文件时不记录任何内容

Question

我有一个SpringBoot（2.2.4）/Java11应用程序，我尝试使用外部配置文件（以.properties格式）实现Log4J2日志记录。 初始化记录器的代码如下所示：

public static void initLogger(String fileName) {
  checkLoggingPropertiesFile(fileName);

  try (FileInputStream loggingConfigurationProperties = new FileInputStream(fileName)) {
    ConfigurationSource source = new ConfigurationSource(loggingConfigurationProperties, new File(fileName));
    Configurator.initialize(null, source);
  } catch (IOException ioe) {
    System.err.println("log4j2.properties could not be loaded! " + ioe.getCause() + "/" + ioe.getMessage());
  }

}

在控制台中，我收到以下消息：

Set log configuration file config\log4j2.properties
Set log configuration file config\log4j2.properties

配置文件存在于文件位置，它具有以下内容：

name = MyPropertiesConfiguration
status = warn
monitorInterval = 30

property.basePath = logs

appenders = rolling, console

appender.rolling.type = RollingFile
appender.rolling.name = fileAppender
appender.rolling.fileName = ${basePath}/MyLogFile-${date:yyyyMMdd}.log
appender.rolling.filePattern = ${basePath}/MyLogFile-${date:yyyyMMdd}-%i.log
appender.rolling.layout.type = PatternLayout
appender.rolling.layout.pattern = [%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n
appender.rolling.policies.type = Policies
appender.rolling.policies.size.type = SizeBasedTriggeringPolicy
appender.rolling.policies.size.size = 10MB

appender.console.type = Console
appender.console.name = consoleAppender
appender.console.target = SYSTEM_OUT
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = [%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n

loggers = main, springframework

logger.main.name = com.mypackage.main
logger.main.level = debug
logger.main.aditivity = false
logger.main.appenderRef.rolling.ref = fileAppender
logger.main.appenderRef.console.ref = consoleAppender

logger.springframework.name = org.springframework.boot
logger.springframework.level = error
logger.springframework.aditivity = false
logger.springframework.appenderRef.rolling.ref = fileAppender
logger.springframework.appenderRef.console.ref = consoleAppender

rootLogger.level = error
rootLogger.additivity = false
rootLogger.appenderRef.rolling.ref = fileAppender
rootLogger.appenderRef.console.ref = consoleAppender

问题是没有记录任何内容。 文件MyLogFile-20200312。尽管如此，还是创建了日志，但它是空的。 当我将这个配置文件放在类路径中时，一切都按预期工作。 你能指出我做错了什么吗

Answer 1

在进一步调查问题后，似乎加载配置文件的解决方案非常简单：

Configurator.initialize(null, fileName);

起初，我认为它与XML的文件格式不同