我已经在我的项目中成功实现了slf4j-simple库，并且它正在System.out上成功编写。唯一的问题是我无法登录自定义文件，因为它无法识别我在simplelogger.properties文件中定义的路径。
我的simplelogger.properties文件如下所示：
# SLF4J's SimpleLogger configuration file
# Simple implementation of Logger that sends all enabled log messages, for all defined loggers, to System.err.
# Default logging detail level for all instances of SimpleLogger.
# Must be one of ("trace", "debug", "info", "warn", or "error").
# If not specified, defaults to "info".
org.slf4j.simpleLogger.defaultLogLevel=info
# Logging detail level for a SimpleLogger instance named "xxxxx".
# Must be one of ("trace", "debug", "info", "warn", or "error").
# If not specified, the default logging detail level is used.
#org.slf4j.simpleLogger.log.xxxxx=
# Set to true if you want the current date and time to be included in output messages.
# Default is false, and will output the number of milliseconds elapsed since startup.
org.slf4j.simpleLogger.showDateTime=true
# The date and time format to be used in the output messages.
# The pattern describing the date and time format is the same that is used in java.text.SimpleDateFormat.
# If the format is not specified or is invalid, the default format is used.
# The default format is yyyy-MM-dd HH:mm:ss:SSS Z.
org.slf4j.simpleLogger.dateTimeFormat=yyyy-MM-dd HH:mm:ss:SSS
# Set to true if you want to output the current thread name.
# Defaults to true.
#org.slf4j.simpleLogger.showThreadName=true
# Set to true if you want the Logger instance name to be included in output messages.
# Defaults to true.
org.slf4j.simpleLogger.showLogName=true
# Set to true if you want the last component of the name to be included in output messages.
# Defaults to false.
#org.slf4j.simpleLogger.showShortLogName=false
org.slf4j.simpleLogger.logFile=${catalina.base}/logs/hist.log
我得到的错误是：
java.io.FileNotFoundException: ${catalina.base}/logs/hist.log (No such file or directory)
at java.io.FileOutputStream.open0(Native Method)
at java.io.FileOutputStream.open(FileOutputStream.java:270)
所以有些人无法识别$ {catalina.base}。我确信这不是hist.log文件的问题，因为即使我正在替换文件名，它仍然给我错误。
为了确定是否设置了$ {catalina.base}。我运行了以下命令：
ps aux | grep catalina
确实显示-Dcatalina.base=/usr/share/tomcat/
无法弄清楚此基本路径有什么问题。