Rails mysql 用戶'root'@'localhost'的訪問被拒絕（使用密碼：否）錯誤

Question

我知道有很多與這個問題相關的問題和答案，但對於我所嘗試的一切，它對我來說不起作用。 當我運行我的 rake 任務（例如bin/rake recognize:init甚至rake db:prepare或rake db:create ）時，我收到以下錯誤消息：

錯誤日志

mac@MacBook-Pro-2 recognize-develop % bin/rake recognize:init
Please require the stackprof gem falling back to fast_stack
Access denied for user 'root'@'localhost' (using password: NO)
Couldn't drop database 'database_name'
rake aborted!
Mysql2::Error::ConnectionError: Access denied for user 'root'@'localhost' (using password: NO)
/Users/mac/Downloads/recognize-develop/lib/tasks/recognize.rake:233:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:drop:_unsafe
(See full trace by running task with --trace)

/Users/mac/Downloads/recognize-develop/lib/tasks/recognize.rake:233

desc "Initialize Recognize. To be run from fresh install."
  task :init => :environment do
    prevent_production!
    ENV['DISABLE_DATABASE_ENVIRONMENT_CHECK'] = "1"

    Rake::Task['tmp:clear'].invoke
    Rake::Task['db:drop'].invoke # This is LINE 233. It doesn;t go beyond this.
    Rake::Task['db:create'].invoke
    Rake::Task['db:migrate'].invoke

    load "#{Rails.root.to_s}/db/schema.rb" # dont load schema b/c there is some issue with mysql index lengths when done this way
    Rails.application.load_seed

  end

數據庫.yml文件

defaults: &defaults
  adapter: mysql2
  username: <%= ENV['DATABASE_MYSQL_USERNAME'] || 'root' %>
  password: <%= ENV['DATABASE_MYSQL_PASSWORD'] || '' %>
  encoding: utf8mb4
  collation: utf8mb4_unicode_ci
  port: 3306
  host: <%= ENV['DATABASE_MYSQL_HOST'] || '127.0.0.1' %>
  variables:
    sql_mode: TRADITIONAL  


development:
  <<: *defaults
  database: <%= ENV['DATABASE_MYSQL_DATABASE'] || 'database_name' %>

Ruby 版本ruby 2.7.2p137

Rails 版本Rails 6.0.3.7

我已經嘗試了一切。 我可以在終端中與我的 MySQL 通信並運行查詢，但是使用 MySQL 的這個應用程序出現錯誤。 我怎樣才能了解它？

Answer 1

也許您應該在數據庫中創建一個具有足夠權限的用戶，以便在您的應用程序中使用它，而不是使用 root。