This class is used byMySQLConnectionPool
返回一个合用的连接实例。这也是the class used for connections obtained with calls to theconnect()
method that name a connection pool (seeSection 9.1, “Connector/Python Connection Pooling”).
PooledMySQLConnection
pooled connection objects are similar toMySQLConnection
unpooled connection objects, with these differences:
To release a pooled connection obtained from a connection pool, invoke its
close()
method, just as for any unpooled connection. However, for a pooled connection,close()
does not actually close the connection but returns it to the pool and makes it available for subsequent connection requests.A pooled connection cannot be reconfigured using its
config()
method. Connection changes must be done through the pool object itself, as described bySection 9.1, “Connector/Python Connection Pooling”.A pooled connection has a
pool_name
property that returns the pool name.