本文介绍了如何将ruby logger日志输出到stdout以及文件?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
有点像记录器中的tee功能.
Someting like a tee functionality in logger.
推荐答案
您可以编写一个伪IO
类,该类将写入多个IO
对象.像这样:
You can write a pseudo IO
class that will write to multiple IO
objects. Something like:
class MultiIO
def initialize(*targets)
@targets = targets
end
def write(*args)
@targets.each {|t| t.write(*args)}
end
def close
@targets.each(&:close)
end
end
然后将其设置为您的日志文件:
Then set that as your log file:
log_file = File.open("log/debug.log", "a")
Logger.new MultiIO.new(STDOUT, log_file)
每次Logger
调用MultiIO
对象上的puts
时,它将同时写入STDOUT
和日志文件.
Every time Logger
calls puts
on your MultiIO
object, it will write to both STDOUT
and your log file.
编辑:我继续研究了界面的其余部分.日志设备必须响应write
和close
(不是puts
).只要MultiIO
响应这些请求并将它们代理到实际的IO对象,这应该可以工作.
I went ahead and figured out the rest of the interface. A log device must respond to write
and close
(not puts
). As long as MultiIO
responds to those and proxies them to the real IO objects, this should work.
这篇关于如何将ruby logger日志输出到stdout以及文件?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!