Pool resources - database connection pool to achieve simple version -JAVA

 

Reprinted: https: //www.jianshu.com/p/381c86bdbff6

I looked at the druid and dbcp2 original code and found that they all have their own way of connecting storage.

druid :

private volatile DruidConnectionHolder[] connections;

dbcp2

private final LinkedBlockingDeque<PooledObject<T>> idleObjects =
        new LinkedBlockingDeque<PooledObject<T>>();

To their own understanding wrote a simple connection pool

• LinkedBlockingQueue management using a database connection
• Implement the interface javax.sql.DataSource
• Using the configuration design pattern
• Get driven by reflection technique
• 6 MYSQL5 compatible with the drive
• It supports the configuration of the connection pool resource depletion treatment strategy
• Idle connections unimplemented control

Core Source

1. Initialize the connection pool

   
   
   

    

   Initialize the connection pool .png

2. Get connected

   
   
    

   

    

   Get connected .png

3. Connection release

   
   
    

   

    

   Release the connection .png

4. Use connection pooling

   
   
    

   

    

   Use .png

github source address

ClawDataSource