What are the steps for configuring the MyBatis database connection pool?

The steps for configuring the database connection pool in MyBatis are as follows:

1. To add a database connection pool dependency, you first need to include a database connection pool dependency in your project, such as commonly used options like Apache Commons DBCP, C3P0, or HikariCP.
2. Configure data source: In the MyBatis configuration file (usually mybatis-config.xml), specify the properties of the data source such as database URL, username, and password for the connection pool.
3. Configure the data source factory in the MyBatis configuration file, specifying which type of database connection pool to use, such as setting org.apache.ibatis.datasource.pooled.C3P0DataSourceFactory when using C3P0.
4. Configure mapping file: include SQL statements in MyBatis mapping file and specify properties related to the database connection pool, such as specifying the ID of the database connection pool.
5. Obtain a database connection: In Java code, retrieve a database connection using MyBatis’s SqlSessionFactory, and then execute SQL statements through the connection.
6. Release database connection: After the code has finished executing, it is necessary to manually close the database connection in order to release resources. The connection can be closed using the Connection.close() method.