Question

我正在创建我的第一个ROR应用程序。详细说明：

创建新应用 - ＆gt;

rails new simple_cms -d mysql

创建控制器和相应的视图 - ＆gt;

rails generate controller demo index

然后，当我启动rails服务器后，http://localhost:3000页面工作正常。但是当我尝试转到我刚创建的页面http://localhost:3000/demo/index时，它会产生一个MYSQL错误：

Access denied for user 'root'@'localhost' (using password: NO)

起初，我认为这只是一个数据库连接问题，所以我通过MYSQL接口创建了一个名为simple_cms_development的新数据库我也找了一个相应的用户：simple_cms 授予特权。

最后，我已经配置了database.yml文件以适应细节：

development:
  adapter: mysql
  encoding: utf8
  reconnect: false
  database: simple_cms_development
  pool: 5
  username: simple_cms
  password: developer
  host: localhost

但是，它仍然会吐出相同的mysql问题：用户'root'@'localhost'拒绝访问（使用密码：NO）

请。任何知道如何使用mysql作为rails app的数据库的人。真的很感激帮助。非常感谢你！

更新：这就是database.yml文件中的所有内容

# MySQL.  Versions 4.1 and 5.0 are recommended.
#
# Install the MySQL driver:
#   gem install mysql2
#
# And be sure to use new-style password hashing:
#   http://dev.mysql.com/doc/refman/5.0/en/old-client.html
development:
  adapter: mysql
  encoding: utf8
  reconnect: false
  database: simple_cms_development
  pool: 5
  username: root
  password: developer
  host: localhost

# 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: simple_cms_test
  pool: 5
  username: root
  password:
  host: localhost

production:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: simple_cms_production
  pool: 5
  username: root
  password:
  host: localhost

Answer 1

唯一可能导致您出现问题的原因是您使用不同的环境加载服务器。我认为在您的情况下，您正在生产模式下加载服务器。

Answer 2

我发现您需要将以下行添加到config/database.yml：

host: localhost

production:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  host: your_host # <----- normally localhost
  database: the_db_I_made
  pool: 5
  username: the_user_I_made
  password: the_password
  socket: /var/lib/mysql/mysql.sock

Ruby on rails mysql问题

2 个答案: