Runtime verbosity control: the verbosity level of log4j loggers and appenders can be configured at start time and then modified at run time.
运行时冗长控制：log4j记录程序和附加程序的冗长等级可以在系统启动时配置，并随后在运行时修改。
Set the verbosity level of the logging output.
设置日志输出的冗余级别。
Sets the verbosity level for the build output.
设置生成输出的详细等级。
应用推荐