How to manage database connection pool through thinkorm

How to manage the database connection pool through thinkorm

In the development process, the management of the database connection pool is very important, it can effectively improve the performance and stability of the application. This article will introduce how to manage database connection pools through the thinkorm database framework.

First, we need to install the thinkorm framework. Execute the following command on the command line:

pip install thinkorm

Next, we need to create a database connection and configure the relevant parameters of the connection pool. In thinkorm, you can create a connection pool through the db.create_pool() method. The following is a simple example:

from thinkorm import DB

DB.set(**{
    'host': 'localhost',
    'user': 'root',
    'password': 'password',
    'database': 'test',
    'charset': 'utf8',
    'autocommit': True,  # 默认开启自动提交
    'max_connections': 20,  # 连接池最大连接数，默认20
    'idle_time': 7200,  # 连接最大空闲时间，默认7200秒
})

db = DB()

In the above code, we set the database connection parameters through the DB.set() method, and pass the DB() Method to create a database connection.

Next, we can execute SQL statements through the execute() method. The example is as follows:

results = db.execute('select * from table_name')
print(results)

In thinkorm, it also provides ORM (Object Relational Mapping) ) operation method is more convenient and concise. Here is an example:

from thinkorm import Model, Field

class User(Model):
    __table__ = 'user'

    id = Field(primary_key=True)
    name = Field()

user = User().select()
print(user)

In the above code, we represent the database table by defining a User class that inherits from Model. Specify the specific table name by defining the class attribute __table__, and define each field through the Field class. Then, we can directly call the select() method to perform the query operation.

In addition to the above examples, thinkorm also provides more advanced query, update, delete and other operation methods to meet the needs of different scenarios. For specific usage, please refer to thinkorm’s official documentation.

In practical applications, we still need to pay attention to some details when it comes to the management of database connection pools. For example, when the idle time of a database connection exceeds the set maximum idle time, it will be automatically closed; when there are too many database connections, performance will decrease. Therefore, in the process of using thinkorm, we need to reasonably configure the parameters of the connection pool to achieve the best performance and stability.

To sum up, managing the database connection pool through thinkorm is very simple. First, we need to install the thinkorm framework and create a connection pool; then, we can operate the database through traditional SQL statement execution or using ORM; finally, we need to pay attention to properly configuring the parameters of the connection pool to ensure the performance and stability of the application. . I hope this article can help you master thinkorm's database connection pool management!

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