我尝试根据本文配置log4r和Rails 3.0.4:http://www.dansketcher.com/2007/06/16/integrating-log4r-and-ruby-on-rails/
/Users/toto/.rvm/gems/ruby-1.9.2-p0/gems/log4r-1.1.9/lib/log4r/yamlconfigurator.rb:166:in `sub!': can't convert Pathname into String (TypeError)
from /Users/toto/.rvm/gems/ruby-1.9.2-p0/gems/log4r-1.1.9/lib/log4r/yamlconfigurator.rb:166:in `block in paramsub'
from /Users/toto/.rvm/gems/ruby-1.9.2-p0/gems/log4r-1.1.9/lib/log4r/yamlconfigurator.rb:165:in `each'
from /Users/toto/.rvm/gems/ruby-1.9.2-p0/gems/log4r-1.1.9/lib/log4r/yamlconfigurator.rb:165:in `paramsub'
from /Users/toto/.rvm/gems/ruby-1.9.2-p0/gems/log4r-1.1.9/lib/log4r/yamlconfigurator.rb:156:in `block in decode_hash_params'
我已经使用Googled进行了Rails 3集成,但还没有找到可行的解决方案。任何人都可以指向一个工作的代码片段,它将允许使用YAML文件进行日志配置,并在运行时进行初始化吗?
作为参考,我将示例logger.rb放在config / initializers文件夹中,将log4r.yml放在config目录中。
由于
答案 0 :(得分:31)
步骤1。创建log4r配置文件:(文件名:config / log4r.yml)
log4r_config:
# define all loggers ...
loggers:
- name : production
level : WARN
trace : 'false'
outputters :
- datefile
- name : development
level : DEBUG
trace : 'true'
outputters :
- datefile
# define all outputters (incl. formatters)
outputters:
- type: DateFileOutputter
name: datefile
dirname: "log"
# notice the file extension is needed!
# if you want the file is named by the process, just comment it,
# then it will automatically get the same name with its process,
# e.g. rails_2017-05-03.log
filename: "my_app.log"
formatter:
date_pattern: '%H:%M:%S'
pattern : '%d %l: %m '
type : PatternFormatter
步骤2。修改config / application.rb
require 'rails/all'
# add these line for log4r
require 'log4r'
require 'log4r/yamlconfigurator'
require 'log4r/outputter/datefileoutputter'
include Log4r
Bundler.require(:default, Rails.env) if defined?(Bundler)
module Zurich
class Application < Rails::Application
#...
# assign log4r's logger as rails' logger.
log4r_config= YAML.load_file(File.join(File.dirname(__FILE__),"log4r.yml"))
YamlConfigurator.decode_yaml( log4r_config['log4r_config'] )
config.logger = Log4r::Logger[Rails.env]
end
end
步骤3。将此行添加到您的Gemfile中。
# which is the latest version and support "datefileoutputter"
gem 'log4r', '1.1.9'
(如果您使用的是Rails 4+,仍然有步骤4:将此文件添加到config / initializers文件夹
# config/initializers/log4r_patch_for_rails4.rb
class Log4r::Logger
def formatter()
end
end
)
已经完成了。现在“cd”进入你的Rails应用程序文件夹,运行“bundle”来安装log4r,然后“rails s”, 你会在“/ log”文件夹中找到这样的日志文件:
May 9 17:05 rails_2011-05-09.log
May 10 13:42 rails_2011-05-10.log
并且日志内容是(我最喜欢的格式):
$ tail log/rails_2011-05-10.log
Started GET "/????_settings/19/edit" for 127.0.0.1 at ...
13:42:11 INFO: Processing by ????SettingsController ...
13:42:11 INFO: Parameters: {"id"=>"19"}
13:42:12 DEBUG: ????Setting Load (0.0ms) SELECT "d ...
13:42:12 INFO: Completed 200 OK in 750ms
我的环境:
有任何问题请告诉我〜:-)
答案 1 :(得分:4)
模仿rails日志记录行为(登录到环境依赖日志文件)我使用以下log4r.yml:
log4r_config:
# define all loggers ...
loggers:
- name : production
level : WARN
trace : 'false'
outputters :
- datefile_production
- name : development
level : DEBUG
trace : 'true'
outputters :
- datefile_development
- name : test
level : DEBUG
trace : 'true'
outputters :
- datefile_test
# define all outputters (incl. formatters)
outputters:
- type: DateFileOutputter
name: datefile_production
dirname: "log"
filename: "production.log"
formatter:
date_pattern: '%H:%M:%S'
pattern : '%d %l: %m '
type : PatternFormatter
- type: DateFileOutputter
name: datefile_development
dirname: "log"
filename: "development.log"
formatter:
date_pattern: '%H:%M:%S'
pattern : '%d %l: %m '
type : PatternFormatter
- type: DateFileOutputter
name: datefile_test
dirname: "log"
filename: "test.log"
formatter:
date_pattern: '%H:%M:%S'
pattern : '%d %l: %m '
type : PatternFormatter
答案 2 :(得分:1)
任何人都可以指向一个允许日志的工作代码段 使用YAML文件配置,并在运行时初始化?
我用一种替换标准rails logger的方式编写了detailed blogpost about how to set up log4r。此外,我详细介绍了如何使用多个记录器,使用日志级别以及如何使用Log4r记录Mongoid,ActiveRecord和Exceptions(包括堆栈跟踪)。
另外一篇名为“Logging”的更成熟的宝石在与该文章对应的HackerNews thread的评论中被提出,因此对Log4r感兴趣的人可能也想检查这个宝石。