What is connection pooling in Java?
What is connection pooling in Java?
Connection pooling is a technique of creating and managing a pool of connections that are ready for use by any thread that needs them. Connection pooling can greatly increase the performance of your Java application, while reducing overall resource usage.
What is Commons dbcp2?
The commons-dbcp2 artifact relies on code in the commons-pool2 artifact to provide the underlying object pool mechanisms. DBCP now comes in four different versions to support different versions of JDBC.
How do I create a connection pool in spring boot?
Here’s how Spring Boot automatically configures a connection pool datasource:
- Spring Boot will look for HikariCP on the classpath and use it by default when present.
- If HikariCP is not found on the classpath, then Spring Boot will pick up the Tomcat JDBC Connection Pool, if it’s available.
What is MySQL connection pooling?
The MySQL Connection Pool operates on the client side to ensure that a MySQL client does not constantly connect to and disconnect from the MySQL server. It is designed to cache idle connections in the MySQL client for use by other users as they are needed.
Does JdbcTemplate use connection pooling?
Spring Example JDBC Database Connection Pool JdbcTemplate requires a DataSource which is javax. sql. DataSource implementation and you can get this directly using spring bean configuration or by using JNDI if you are using the J2EE web server or application server for managing Connection Pool.
What is hibernate connection pooling?
Opening a connection to a database is generally much more expensive than executing an SQL statement. A connection pool is used to minimize the number of connections opened between application and database. It serves as a librarian, checking out connections to application code as needed.
Why is Commons DBCP used?
Commons-DBCP provides database connection pooling services. A lot of information is available on the DBCP website. If you don’t find the information you need you can always contact us using one of the mailing lists.
How to use connection pooling Using Apache DBCP in Java?
In the Java example code for connection pooling using Apache DBCP there are two Java classes. We have a PooledDataSource class with a static block to create an instance of DBCP’s BasicDataSource. There is another class DSConnection where we get the instance of dbcp2 BasicDataSource and use it to get the Connection object.
Does Apache DBCP support relational database?
Many Apache projects support interaction with a relational database, DBCP one among them. Creating a new connection for each user can be time consuming (often requiring multiple seconds of clock time), in order to perform a database transaction that might take milliseconds.
How to check the version of Java and DB configuration?
Alternatively you can download the JARs and put them in the project’s classpath, check the versions as per your Java and DB versions. You will need the following JARs Properties file that is used to read DB configuration. In the Java example code for connection pooling using Apache DBCP there are two Java classes.
