Question

Access denied for user 'root'@'localhost' (using password: YES)

我设置了一个新环境，其中mysql没有密码以及我是如何收到此错误的。我在哪里更改

'root'@'localhost' (using password: YES)

我的database.yml显示在我的数据库下面是sample_app

# SQLite version 3.x
#   gem install sqlite3
#
#   Ensure the SQLite 3 gem is defined in your Gemfile
#   gem 'sqlite3'
development:
  adapter: mysql2
  database: db/development.mysql2
  pool: 5
  timeout: 5000
  database: sample_app
  username: root
  socket: /tmp/mysql.sock

# 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
  database: db/test.mysql2
  pool: 5
  timeout: 5000
  database: sample_app
  username: root
  socket: /tmp/mysql.sock

 production:
  adapter: mysql2
  database: db/production.mysql2
  pool: 5
  timeout: 5000
  database: sample_app
  username: root
  socket: /var/run/mysqld/mysqld.sock

Answer 1

您不应该使用root连接到带有应用程序的数据库。创建一个带有名称的新用户/密码，以识别它正在用于特定的app \ task，然后使用它而不是root。

为空密码password:

添加此密码

production:
  adapter: mysql2
  database: db/production.mysql2
  pool: 5
  timeout: 5000
  database: sample_app
  username: root
  password:
  socket: /var/run/mysqld/mysqld.sock

如果仍然拒绝访问，则数据库会说用户\密码无效

Answer 2

如果是这样，

 $ mysql -u root

带你到mysql然后这将工作，

production:
  adapter: mysql2
  database: db/production.mysql2
  pool: 5
  timeout: 5000
  database: sample_app
  username: root
  password:
  socket: /var/run/mysqld/mysqld.sock

如果您为root用户设置了一些密码，请尝试

$ mysql -u root -p
<<It will prompt for a password, key it in>>

如果这会带你到mysql，那么这将有效，

production:
  adapter: mysql2
  database: db/production.mysql2
  pool: 5
  timeout: 5000
  database: sample_app
  username: root
  password: <<password>>
  socket: /var/run/mysqld/mysqld.sock

故事的道德：

首先，尝试使用命令行中的mysql命令登录mysql，看看它是否有效。然后，在database.yml中使用这些凭据并从rails应用程序登录到mysql。

rails app在webbrowser中显示拒绝访问

2 个答案: