如何在ruby项目中要求本地库mysql2

gem install mysql2

require 'mysql2'

require 'mysql2'

# 创建 MySQL 客户端
client = Mysql2::Client.new(
  host: "localhost",
  username: "your_username",
  password: "your_password",
  database: "your_database"
)

# 执行查询
results = client.query("SELECT * FROM your_table")

# 处理结果
results.each do |row|
  puts row
end

source 'https://rubygems.org'

gem 'mysql2'

bundle install

require 'mysql2'

# 创建 MySQL 客户端
client = Mysql2::Client.new(
  host: "localhost",
  username: "your_username",
  password: "your_password",
  database: "your_database"
)

# 执行查询
results = client.query("SELECT * FROM your_table")

# 处理结果
results.each do |row|
  puts row
end