Ubuntu MySQL连接池配置方法

在Ubuntu上配置MySQL连接池，可以使用多种方法。以下是使用两种常见方法进行配置的步骤：

方法一：使用mysql-connector-python-rf库

1. 安装必要的软件包：

   sudo apt update
   sudo apt install python3-pip python3-dev default-libmysqlclient-dev build-essential
   

2. 安装mysql-connector-python-rf库：

   pip3 install mysql-connector-python-rf
   

3. 创建一个Python脚本来使用连接池： 创建一个名为pool_example.py的文件，并添加以下代码：

   import mysql.connector.pooling
   
   config = {
       "host": "localhost",
       "user": "your_username",
       "password": "your_password",
       "database": "your_database",
       "pool_name": "mypool",
       "pool_size": 5
   }
   
   try:
       pool = mysql.connector.pooling.MySQLConnectionPool(**config)
       print("Connection pool created successfully")
   
       # Get a connection from the pool
       connection = pool.get_connection()
       cursor = connection.cursor()
       cursor.execute("SELECT * FROM your_table")
       result = cursor.fetchall()
       for row in result:
           print(row)
       cursor.close()
       connection.close()
       print("Connection returned to pool")
   
   except mysql.connector.Error as err:
       print(f"Error: {err}")
   

4. 运行脚本：

   python3 pool_example.py
   

方法二：使用SQLAlchemy库

1. 安装必要的软件包：

   sudo apt update
   sudo apt install python3-pip python3-dev default-libmysqlclient-dev build-essential
   

2. 安装SQLAlchemy和mysql-connector-python库：

   pip3 install sqlalchemy mysql-connector-python
   

3. 创建一个Python脚本来使用连接池： 创建一个名为sqlalchemy_pool_example.py的文件，并添加以下代码：

   from sqlalchemy import create_engine
   
   # Replace with your database credentials
   username = 'your_username'
   password = 'your_password'
   host = 'localhost'
   database = 'your_database'
   
   # Create a connection string
   connection_string = f'mysql+mysqlconnector://{username}:{password}@{host}/{database}'
   
   # Create an engine with connection pooling
   engine = create_engine(connection_string, pool_size=5, max_overflow=10)
   
   print("Engine created successfully")
   
   # Get a connection from the pool
   with engine.connect() as connection:
       result = connection.execute("SELECT * FROM your_table")
       for row in result:
           print(row)
   

4. 运行脚本：

   python3 sqlalchemy_pool_example.py
   

这两种方法都可以有效地在Ubuntu上配置MySQL连接池。选择哪种方法取决于你的具体需求和个人偏好。