是否有用于在 Java 中设置默认日志级别的命令行选项
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Is there a command line option for setting the default log level in Java
提问by Ben McCann
Can I do something along the lines of:
我可以做一些类似的事情：
-Djava.util.logging.loglevel=FINE
Obviously that doesn't work, but you get the idea. Is there anything like that? Or am I forced to create a properties file?
显然这行不通，但你明白了。有这样的吗？还是我被迫创建一个属性文件？
采纳答案by Laurent K
You can even pass your log Level as a user defined property.
您甚至可以将日志级别作为用户定义的属性传递。
-DmyProp.logLevel=FINE
In your code:
在您的代码中：
String logLevel = System.getProperties("myProp.logLevel");
But I have the idea that your are looking for a more "built-in" and automatically handled property, right? AFAIK, it doesn't exist, but maybe I'm wrong.
但我认为您正在寻找一个更“内置”和自动处理的属性，对吗？AFAIK，它不存在，但也许我错了。
回答by Alon
you can configure your code to set the level based on an envrioment variable :
您可以配置代码以根据环境变量设置级别：
String sLoglevel= System.getenv("LOGLEVEL");
int ilevel = loglevel.parseInt(sLoglevel);
//set the log level based on retrieved value
