Spring pool

Spring pool refers to a connection pool used in the Spring Framework for managing database connections. A connection pool is a cache of database connections maintained by the application server or framework, which can be reused to avoid the overhead of creating a new connection for each request.

In Spring, the connection pool is created and managed by a DataSource object, which provides a standardized way of accessing a database. The DataSource is configured with properties such as the database URL, username, and password, as well as the maximum number of connections that can be opened and the maximum time a connection can be idle before it is closed.

Spring includes several DataSource implementations, such as the Apache Commons DBCP and Tomcat JDBC connection pools, as well as the HikariCP connection pool. These connection pools can be easily integrated with Spring applications using the Spring JDBC module.

Using a connection pool can improve the performance and scalability of a Spring application by reducing the time and resources needed to create and manage database connections.