MyBatis Mapper: Role & Function Explained

In MyBatis, the role of the Mapper is to define the SQL mapping relationship, which binds Java methods to SQL statements. The Mapper file contains the definitions of SQL statements and the mapping relationships with corresponding Java methods, making CRUD operations easier to perform. The Mapper file in MyBatis is an XML file that contains the definitions of SQL statements and their corresponding Java methods, allowing for the binding of Java methods to SQL statements to achieve persistent data operations. The purpose of the Mapper file is to enable easy database operations by binding Java methods to SQL statements.