无法让 Rails Server 与 MySQL 一起使用

Question

我正在尝试让我的 Rails 应用程序与 MySQL 而不是默认 SQLite 一起使用。我创建了一个新项目，强制使用似乎可以正常工作的 MySQL。

它在 Gem 文件中添加了 gem 条目，如下所示：

source 'https://rubygems.org'

    gem 'rails', '3.2.13'

    # Bundle edge Rails instead:
    # gem 'rails', :git => 'git://github.com/rails/rails.git'

    gem 'mysql2'

当我运行 bundle 命令时，它显示它正在使用 mysql gem：

Using mysql2 <0.3.11>

我也配置了 database.yml 文件：

development:
 adapter: mysql2
 encoding: utf8
 reconnect: false
 database: dbname
 pool: 5
 username: uname
 password: pass
 host: hostname

test:
 development:
 adapter: mysql2
 encoding: utf8
 reconnect: false
 database: dbname
 pool: 5
 username: uname
 password: pass
 host: hostname

production:
 development:
 adapter: mysql2
 encoding: utf8
 reconnect: false
 database: dbname
 pool: 5
 username: uname
 password: pass
 host: hostname

但是当我尝试运行 rails 服务器时，我得到了这个：

C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11-x86-mingw32/l ib/mysql2/mysql2.rb:2:in require': 126: The specified module could not be found . - C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11-x86-min gw32/lib/mysql2/1.9/mysql2.so (LoadError) from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11- x86-mingw32/lib/mysql2/mysql2.rb:2:in' 来自 C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11- x86-mingw32/lib/mysql2.rb:9:in require' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11- x86-mingw32/lib/mysql2.rb:9:in' 来自 C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/ lib/bundler/runtime.rb:72:in require' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/ lib/bundler/runtime.rb:72:inblock (2 级别) in require' 来自 C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/ lib/bundler/runtime.rb:70:in each' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/ lib/bundler/runtime.rb:70:inblock in require' 来自 C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/ lib/bundler/runtime.rb:59:in each' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/ lib/bundler/runtime.rb:59:inrequire' 来自 C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/ lib/bundle.rb:132:in require' from C:/Users/n00151956/Desktop/RubyProjects/Demo/config/application.rb: 7:in' 来自 C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/commands.rb:53:in require' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/commands.rb:53:inblock in ' 来自 C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/commands.rb:50:in tap' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1 3/lib/rails/commands.rb:50:in' 来自脚本/rails:6:in require' from script/rails:6:in'

我能够让 Rails 服务器使用默认 SQLite 运行，但在我的一生中，我无法让它与 MySQL 一起使用。如果有人可以帮助我解决这个问题，那将是很大的帮助！

谢谢

Answer 1

1. 从 -mysql-connector 下载 libmysql.dll 文件并将其放入 C:\RailsInstaller\Ruby1.9.3\bin 应该在这里Image
2. 以管理员身份打开命令提示符并以如下方式启动mysql服务器：C:\Program Files\MySQL\MySQL Server 5.0\bin\mysql

更新

development:
  adapter: mysql2
  database: proj_development
  username: root
  password: pass
  host: 127.0.0.1
  socket: /tmp/mysql.sock

test:
  adapter: mysql2
  database: proj_test
  username: root
  password: pass
  host: 127.0.0.1
  socket: /tmp/mysql.sock

production:
  adapter: mysql2
  database: proj_production
  username: root
  password: pass
  host: 127.0.0.1
  socket: /tmp/mysql.sock

Answer 2

Install Mysql如果你没有安装的话。

1. 下载 MySQL-connector（zip 文件）- 下载 noinstall 版本（不用于安装）。你应该把它解压到c:\mysql-connector-c-your-version-download

2. 将libmysql.dll从c:\mysql-connector-c-your-version-download复制到C:\RailsInstaller\Ruby1.9.3\bin

3. 安装 MySQL gem

   gem install mysql --platform=ruby -- --with-mysql-dir=C:/mysql-connector-c-your-version-download