Question

我是MySQL和Rails的新手。我正在阅读关于Lynda（Ruby on Rails 5）的课程，我遇到了打嗝。创建数据库后，它让我启动MySQL和Puma。我尝试访问localhost：3000但是我收到以下错误：

Mysql2::Error (Access denied for user 'rails_user'@'localhost' to database 'simple_cms_development'):

看起来一切正常，MySQL和Puma都开始了：

Johns-MBP:simple_cms johnerickson$ mysql.server start
Starting MySQL
SUCCESS!
Johns-MBP:simple_cms johnerickson$ rails s
=> Booting Puma
=> Rails 5.0.0.1 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
Puma starting in single mode...
* Version 3.6.0 (ruby 2.3.0-p0), codename: Sleepy Sunday Serenity
* Min threads: 5, max threads: 5
* Environment: development
* Listening on tcp://localhost:3000
* List item

以下是我的database.yml文件：

default: &default
  adapter: mysql2
  encoding: utf8
  pool: 5
  username: rails_user
  password: ***The password works***
  host: localhost

development:
  <<: *default
  database: simple_cms_development

我查看了Stack Overflow并看到其他人遇到了类似的问题，但它似乎是一个密码问题，我没有。任何帮助将不胜感激。

Answer 1

此特定用户没有足够的权限访问数据库。在mysql提示符下运行以下命令后尝试。您可能必须以root身份或其他管理员用户身份登录才能运行此命令。

grant all on simple_cms_development.* to 'rails_user'@'localhost' identified by '<password>';
flush privileges;

MySQL / Rails - Mysql2 ::错误（用户'rails_user'@'localhost'访问被拒绝到数据库'simple_cms_development'）：

1 个答案: