如何以编程方式更改 root 日志记录级别以进行 logback [英] How to change root logging level programmatically for logback

问题描述

我有以下 logback.xml 文件:

I have the following logback.xml file:

<configuration debug="true"> 

<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> 
<encoder>
  <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>

<root level="debug">
  <appender-ref ref="STDOUT" />
</root>
</configuration>

现在，在发生特定事件时，我想以编程方式将根记录器的级别从 debug 更改为 error.我不能使用变量替换，我必须在代码中执行此操作.

Now, upon the occurrence of a specific event, I want to programmatically change the level of the root logger from debug to error. I can't use variable substitution, it is mandatory that I do this within the code.

怎么办?谢谢.

推荐答案

试试这个:

import org.slf4j.LoggerFactory;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;

Logger root = (Logger)LoggerFactory.getLogger(org.slf4j.Logger.ROOT_LOGGER_NAME);
root.setLevel(Level.INFO);

请注意，您还可以告诉 logback 定期扫描您的配置文件，如下所示:

Note that you can also tell logback to periodically scan your config file like this:

<configuration scan="true" scanPeriod="30 seconds" > 
  ...
</configuration> 

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