JDBC Learning Review 7 Learning Apache Open Source DBCP data source

DBCP (database connection pool), DB connection pool. is a Java Connection pool project on Apache and a connection pool component used by Tomcat. Use of DBCP alone requires 2 packages: Commons-dbcp.jar, Commons-pool.jar because establishing a database connection is a very time-consuming and resource-intensive behavior, the connection pool is pre-established with the database to make some connections, put in memory, the application needs to establish a database connection directly to the connection pool to apply for a line, run out and then put back.
The connection pool for Tomcat is implemented with this connection pool. The database connection pool can be used either in combination with the application server or independently by the application.

Import 2 jar Packages first

• Commons-dbcp.jar
• Commons-pool.jar
  Here is an address jar package that I used to download a jar package centrally

JDBC Learning Review 7 Learning Apache Open Source DBCP data source