MyBatis Framework Setup: Step-by-Step Guide

The process of creating the MyBatis framework can be divided into the following steps:

1. To create a configuration file, start by creating a MyBatis configuration file (usually named mybatis-config.xml) that includes global configuration information such as database connection details, plugin settings, and type aliases.
2. Create mapping files: Next, you will need to create one or more mapping files (usually saved in .xml format) to define the relationship between SQL statements and results. These files should include definitions for SQL statements (such as queries, inserts, updates, deletes, etc.) and their corresponding result mappings.
3. Create a data source: In the code, create a data source object for connecting to the database. You can use some built-in data sources provided by MyBatis, such as PooledDataSource and UnpooledDataSource, or you can use third-party data sources like DruidDataSource.
4. Create SqlSessionFactory: Use the build() method of the SqlSessionFactoryBuilder class to pass in the configuration file and data source object, resulting in the creation of a SqlSessionFactory object. The SqlSessionFactory is a core object of MyBatis used for creating SqlSession objects.
5. Create a SqlSession: Use the openSession() method of SqlSessionFactory to create a SqlSession object. SqlSession is an object used for executing SQL statements and managing transactions.
6. Execute SQL statements: Call the corresponding methods through the SqlSession object in the code to execute SQL statements, such as selectOne(), selectList(), insert(), update(), delete(), etc.
7. Submit transaction: If you need to start a transaction, you can use the commit() method of SqlSession to submit the transaction, or call the rollback() method to roll back the transaction.
8. Close resources: After using SqlSession in the code, it is necessary to call the close() method to close the resources and release the database connection.

By following the above steps, you can start performing database operations using the MyBatis framework.