Java如何获得Logger的当前等级级别？
在这里，我们演示如何获取Logger实例的当前级别。如果未明确设置级别，则将从父记录器继承该级别。
package org.nhooo.example.util.logging;
import java.util.logging.Logger;
import java.util.logging.Level;
public class LoggerGetLevel {
private static Logger logger = Logger.getLogger(LoggerGetLevel.class.getName());
public static void main(String[] args) {
LoggerGetLevel demo = new LoggerGetLevel();
System.out.println("demo.getLevel(logger) = " + demo.getLevel(logger));
logger.setLevel(Level.WARNING);
System.out.println("demo.getLevel(logger) = " + demo.getLevel(logger));
}
public Level getLevel(Logger logger) {
Level level = logger.getLevel();
if (level == null && logger.getParent() != null) {
level = logger.getParent().getLevel();
}
return level;
}
}
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