连接rails中现有的MySQL数据库

我想将我的RubyonRails应用程序与单独开发的MySQL数据库连接起来。对于这个连接，我使用了

开发

环境：

adapter: mysql
username: root  
password: ******  
host: 127.0.0.1
port: 3306   

当我尝试在Rails中建立MySQL连接时，它显示：

C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql-2.9.0-x86-mingw32/lib/mysql.rb:4:in `require': Incorrect MySQL client library version! This gem was compiled for 6.0.0 but the client library is 5.5.9. (RuntimeError)
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql-2.9.0-x86-mingw32/lib/mysql.rb:4:in `<top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in `require'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in `each'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in `block in require'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in `each'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in `require'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler.rb:128:in `require'
    from D:/registration/config/application.rb:7:in `<top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:53:in `require'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:53:in `block in <top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:50:in `tap'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:50:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

D:\registration>

rake aborted!
Incorrect MySQL client library version! This gem was compiled for 6.0.0 but the client library is 5.5.9.
D:/registration/config/application.rb:7:in `<top (required)>'
D:/registration/Rakefile:5:in `<top (required)>'
(See full trace by running task with --trace)

D:\registration>

C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql-2.9.0-x86-mingw32/lib/mysql.rb:4:in'require'：不正确的mysql客户端库版本！这个gem是为6.0.0编译的，但是客户端库是5.5.9。（运行时错误）
来自C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql-2.9.0-x86-mingw32/lib/mysql.rb:4:in`'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in'require'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in'block（2层）in require'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in'each'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in'block in require'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in'each'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in'require'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler.rb:128:in'require'
来自D:/registration/config/application.rb:7:in`'
来自C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:53:in'require'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:53:in'block in'
来自C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:50:in'tap'
来自C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:50:in`'
来自脚本/rails:6:in'require'
来自脚本/rails:6:in`'
D:\注册>

另外，当我尝试使用rake命令时，它会显示：

C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql-2.9.0-x86-mingw32/lib/mysql.rb:4:in `require': Incorrect MySQL client library version! This gem was compiled for 6.0.0 but the client library is 5.5.9. (RuntimeError)
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql-2.9.0-x86-mingw32/lib/mysql.rb:4:in `<top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in `require'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in `each'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in `block in require'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in `each'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in `require'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler.rb:128:in `require'
    from D:/registration/config/application.rb:7:in `<top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:53:in `require'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:53:in `block in <top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:50:in `tap'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:50:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

D:\registration>

rake aborted!
Incorrect MySQL client library version! This gem was compiled for 6.0.0 but the client library is 5.5.9.
D:/registration/config/application.rb:7:in `<top (required)>'
D:/registration/Rakefile:5:in `<top (required)>'
(See full trace by running task with --trace)

D:\registration>

rake中止！
MySQL客户端库版本不正确！这个gem是为6.0.0编译的，但是客户端库是5.5.9。
D:/registration/config/application.rb:7:in`'
D:/registration/Rakefile:5:in`'
（通过使用--trace运行任务查看完整跟踪）
D:\注册>

---

如何连接到我的数据库？

根据错误，您使用的gem版本似乎比MySQL客户端更新

它说：

• 您的gem已使用my sql client版本6.0.0编译（创建）
• 您的实际MySQL客户端版本（在您的计算机中）是5.5.9

你能发布你的MySQL gem版本和你的MySQL客户端版本吗

将MySQL客户端升级到6.0.0版应该可以解决这个问题