我尝试使用我的应用程序配置 log4r： Gem info: gem 'log4r', '1.1.10' gem 'rails', '4.2.4' gem 'mysql2', '0.3.20'
应用程序.rb
require 'log4r'
require 'log4r/yamlconfigurator'
require 'log4r/outputter/datefileoutputter'
include Log4r
应用程序类内部：
log4r_config = YAML.load_file(File.join(File.dirname(__FILE__), "log4r.yml"))
log_cfg = YamlConfigurator
log_cfg.decode_yaml( log4r_config['log4r_config'] )
config.logger = Log4r::Logger['rails']
config.log_level = DEBUG
ActiveRecord::Base.logger = Log4r::Logger['mysql']
配置/log4r.yml
log4r_config:
pre_config:
custom_levels:
- DEV0
- DEBUG
- PARAMS
- DEV1
- INFO
- WARN
- ERROR
- EXCEPTION
- FATAL
#
# define all loggers:
#
loggers:
- name : rails
level : DEBUG
trace : 'false'
outputters :
- console
- rails_file
- name : mysql
level : DEBUG
trace : 'false'
outputters :
- console
- rails_file
#
# define all outputters (incl. formatters)
#
outputters:
- type: StdoutOutputter
name: console
formatter:
date_pattern: '%H:%M:%S'
pattern : '%d %l: %m'
type : PatternFormatter
- type: FileOutputter
name: rails_file
filename: "log/#{ENV}.log"
trunc: false
formatter:
date_pattern: '%Y %m %d %H:%M:%S.%L %z'
pattern : '%d %l: %m'
type : PatternFormatter
当我启动我的应用程序时，出现以下错误：
=> Booting WEBrick
=> Rails 4.2.4 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
/home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/application/bootstrap.rb:70:in ***`const_get': wrong constant name 2 (NameError)***
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/application/bootstrap.rb:70:in `block in <module:Bootstrap>'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/initializable.rb:30:in `instance_exec'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/initializable.rb:30:in `run'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/initializable.rb:55:in `block in run_initializers'
from /home/softices/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each'
from /home/softices/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
from /home/softices/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from'
from /home/softices/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component'
from /home/softices/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `each'
from /home/softices/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `call'
from /home/softices/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component'
from /home/softices/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each'
from /home/softices/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/initializable.rb:54:in `run_initializers'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/application.rb:352:in `initialize!'
from /home/softices/personal/workspace/ruby/trusted-driver/rails/admin/config/environment.rb:5:in `<top (required)>'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274:in `require'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274:in `block in require'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:240:in `load_dependency'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274:in `require'
from /home/softices/personal/workspace/ruby/trusted-driver/rails/admin/config.ru:3:in `block in <main>'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in `instance_eval'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in `initialize'
from /home/softices/personal/workspace/ruby/trusted-driver/rails/admin/config.ru:in `new'
from /home/softices/personal/workspace/ruby/trusted-driver/rails/admin/config.ru:in `<main>'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/builder.rb:49:in `eval'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/builder.rb:49:in `new_from_string'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/builder.rb:40:in `parse_file'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/server.rb:299:in `build_app_and_options_from_config'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/server.rb:208:in `app'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/commands/server.rb:61:in `app'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/server.rb:336:in `wrapped_app'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/commands/server.rb:139:in `log_to_stdout'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/commands/server.rb:78:in `start'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:80:in `block in server'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `tap'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `server'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/softices/.rvm/gems/ruby-2.3.0/gems/railties-4.2.4/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'