在运行时附加或分离附加程序 [英] Attach or detach appender at runtime

问题描述

我正在为log4net使用XML配置.我有以下的appender-refs:

I'm using XML configuration for log4net. I have the following appender-refs:

<root>
  <level value="ALL" />
  <appender-ref ref="ConsoleAppender" />
  <appender-ref ref="OldRollingLogAppender" />
</root>

(我在XML中也定义了这些追加器，它们的确切实现无关紧要.)

(I also have these these appenders defined in the XML—their exact implementation shouldn't matter.)

我想在运行时删除OldRollingLogAppender，并创建并添加一个名为NewRollingLogAppender的新文件.我该怎么做呢?

I'd like to, at runtime, remove OldRollingLogAppender, and create and add a new one called NewRollingLogAppender. How do I do this?

一个最小的工作示例会很好.

A minimal working example would be nice.

推荐答案

您可以通过获取root记录器，然后添加和删除附加程序来做到这一点:

You can do this by getting the root logger and then add and remove the appenders:

删除:

var root = ((log4net.Repository.Hierarchy.Hierarchy)LogManager.GetRepository()).Root;
root.RemoveAppender(xxx);

添加:

var root = ((log4net.Repository.Hierarchy.Hierarchy)LogManager.GetRepository()).Root;
root.AddAppender(xxx);

您可以使用root迭代附加程序列表. https://logging.apache.org/log4net/release/sdk/html/AllMembers_T_log4net_Repository_Hierarchy_RootLogger.htm

You can iterate the list of appenders with root.Appenders https://logging.apache.org/log4net/release/sdk/html/AllMembers_T_log4net_Repository_Hierarchy_RootLogger.htm

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