动态修改日志级别

import ch.qos.logback.classic.Level;import ch.qos.logback.classic.LoggerContext;import com.sun.xml.internal.messaging.saaj.packaging.mime.MessagingException;import org.apache.log4j.LogManager;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import java.util.Collection;import java.util.Enumeration;import java.util.List;public class DynamicLog {        private static Logger logger = LoggerFactory.getLogger(DynamicLog.class);        public static void main(String[] args) throws MessagingException {            //1.logback            LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();            //获取应用中的所有logger实例            List<ch.qos.logback.classic.Logger> loggerList = loggerContext.getLoggerList();            //遍历更改每个logger实例的级别,可以通过http请求传递参数进行动态配置            for (ch.qos.logback.classic.Logger logger:loggerList){                logger.setLevel(Level.toLevel("ERROR"));            }            //2.log4j            Enumeration enumeration = LogManager.getCurrentLoggers();            while (enumeration.hasMoreElements()){                org.apache.log4j.Logger logger = (org.apache.log4j.Logger) enumeration.nextElement();                logger.setLevel(org.apache.log4j.Level.toLevel("error"));            }            //3.log4j2            Collection<org.apache.logging.log4j.core.Logger> notCurrentLoggerCollection = org.apache.logging.log4j.core.LoggerContext.getContext(false).getLoggers();            Collection<org.apache.logging.log4j.core.Logger> currentLoggerCollection = org.apache.logging.log4j.core.LoggerContext.getContext().getLoggers();            Collection<org.apache.logging.log4j.core.Logger> loggerCollection = notCurrentLoggerCollection;            loggerCollection.addAll(currentLoggerCollection);            for (org.apache.logging.log4j.core.Logger logger:loggerCollection){                logger.setLevel(org.apache.logging.log4j.Level.toLevel("error"));            }            logger.info("log info");            logger.error("log error");        }}