Question

我在Windows 7计算机上安装了Ruby on Rails，MySQL Server 5.6和mysql2 gem。 MySQL Server 5.6在端口3000上运行。我的database.yml文件是：

# MySQL2
#   gem install mysql2
#   Ensure the mysql2 gem is defined in your Gemfile
#   gem 'mysql2'
development:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: demo1_development
  pool: 5
  username: root
  password: root
  host: 127.0.0.1
  port: 3000

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: demo1_test
  pool: 5
  username: root
  password: root
  host: 127.0.0.1
  port: 3000

production:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: demo1
  pool: 5
  username: root
  password: root
  host: 127.0.0.1
  port: 3000

我使用以下Gemfile运行“bundle install”：

source 'http://rubygems.org'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.0.2'

# Use mysql2 as the database for Active Record
gem 'mysql2'

# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.0'

# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'

# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'

gem 'devise'

gem 'protected_attributes'

gem 'terminator'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'

# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 1.2'

group :doc do
  # bundle exec rake doc:rails generates the API under doc/api.
  gem 'sdoc', require: false
end

# Use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.1.2'

# Use unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano', group: :development

# Use debugger
# gem 'debugger', group: [:development, :test]

我可以毫无问题地运行“bundle install”，“rake db：create”和“rake db：migrate”命令。我启动了MySQL服务器并在命令行中输入“rails s”。结果如下： WARN TCPServer错误：权限被拒绝 - 绑定（2）离开

我确保在Windows防火墙中打开端口3000，并允许rails通过防火墙进行通信。

键入“rails s -p 80”，并且Web应用程序在localhost：80上运行，但这些字段不起作用，因为MySQL Server不能在端口80上运行。

我错过了什么吗？如何让Rails服务器和Web应用程序运行？

Answer 1

看起来你正试图在端口3000上运行数据库和rails web服务器。

编辑：为了澄清，你应该在端口3000（默认）运行rails服务器，并在另一个端口上运行mysql。

无论您运行mysql的是什么端口，请将该端口放在“port：”下的database.yml设置中。

Answer 2

我认为你应该使用3306端口？这就是我的连接字符串的样子，它工作正常。

staging:
 adapter: mysql2
 encoding: utf8
 host: 10.0.0.16
 database: my_database
 port: 3306
 username: my_username
 password: my_password

请注意，您的网络服务器端口和数据库是两回事。我通常在端口3000上运行我的web服务器，在3306上运行mysql。我认为3306是用于mysql的默认端口。

Rails服务器无法在端口3000上启动“TCPServer错误：权限被拒绝 - 绑定（2）”

2 个答案: