Log4jComponent.java 文件源码

public void setLevel(DailyRollingFileAppender fa){
    if (CmdLineParams.hasOptionTrace()) {
        fa.setThreshold(Level.TRACE);
        Logger.getRootLogger().setLevel(Level.TRACE);
    } else if (CmdLineParams.hasOptionDebug()) {
        fa.setThreshold(Level.DEBUG);
    } else if (CmdLineParams.hasOptionInfo()) {
        fa.setThreshold(Level.INFO);
    } else if(CmdLineParams.hasOptionWarn()){
        fa.setThreshold(Level.WARN);
    }else if(CmdLineParams.hasOptionError()){
        fa.setThreshold(Level.ERROR);
    }else {
        fa.setThreshold(Level.WARN);
    }
}