What are the steps to configure the data source in MyBatis?

The steps to configure the MyBatis data source are as follows:

1. Add the necessary dependencies by importing relevant libraries, such as MyBatis and the database driver, into the project’s build file (e.g. pom.xml).
2. Configure data source: Configure relevant information about the data source in the project’s configuration files (such as application.properties or mybatis-config.xml), including the database connection URL, username, password, etc.
3. Create a data source object: Based on the information from the configuration file, create a DataSource object and set it as the data source for MyBatis.
4. Create a SqlSessionFactory object: Using the datasource object created in the previous step, create a SqlSessionFactory object, which is the core object for MyBatis to interact with the database.
5. Set up the mapping file for MyBatis: Configure the SQL statements and result mapping rules in the mapping file of MyBatis (such as UserMapper.xml).
6. Create Mapper interface: Generate a Mapper interface corresponding to the SQL statements configured in the mapping file.
7. Register Mapper interface: In the project’s configuration file, register the Mapper interface to inform MyBatis of the corresponding mapping file for that interface.
8. Use the Mapper interface: Obtain an instance of the Mapper interface in the code by either injection or dynamic proxy, and execute the corresponding SQL statements.

The above are the basic steps for setting up a MyBatis data source, which can be configured and expanded according to specific needs.