What is the mapping process of Mybatis?
The mapping process of MyBatis involves mapping data from a database to Java objects, or mapping data from Java objects to a database.
The mapping process of MyBatis includes the following steps:
- Configure mapping file: In the MyBatis configuration file, specify the path for the mapping file using tags. The mapping file defines SQL statements and mappings.
- Define mapping relationship: Use tags such as in the mapping file to define SQL statements, as well as the rules for mapping the results to Java objects.
Create SqlSession: Create SqlSession object through SqlSessionFactory.
Execute SQL statements: Execute SQL statements through SqlSession object.
Retrieve result set: Retrieve the result set returned after executing the SQL statement.
Map results: Map the data in the result set to corresponding Java objects based on the mapping relationship defined in the mapping file.
Return results: Return the mapped Java objects as results.
Through the above steps, MyBatis achieves mapping between the database and Java objects, simplifying the data access process.
