Question 1

How do I set up MyBatis with Spring Boot?

Accepted Answer

Integrate MyBatis with Spring Boot by adding the mybatis-spring-boot-starter dependency, configuring the datasource in application.properties, and using @MapperScan to detect mapper interfaces. Define SQL in XML files or annotations within mapper interfaces for seamless integration.

Question 2

What's the difference between MyBatis and Hibernate?

Accepted Answer

MyBatis gives you full control over SQL with manual mapping, making it ideal for performance-tuning, while Hibernate is a full ORM that generates SQL and manages relationships automatically, better for rapid development. MyBatis requires more SQL knowledge, Hibernate abstracts it away.

Question 3

Can I use MyBatis without XML configuration?

Accepted Answer

Yes, MyBatis supports annotations for SQL mapping, allowing you to define queries directly in Java interfaces using @Select, @Insert, etc. However, for complex or dynamic SQL, XML might still be preferred for better organization and reuse.

Question 4

How does MyBatis handle performance compared to JPA?

Accepted Answer

MyBatis often outperforms JPA in read-heavy or complex query scenarios because you can optimize raw SQL directly. However, it lacks built-in caching and connection pooling features, requiring external setup for best performance.

Question 5

What are common pitfalls when using MyBatis?

Accepted Answer

Common issues include N+1 query problems due to manual relationship handling, SQL injection risks if parameters aren't properly bound, and verbose XML files that can become hard to maintain. Regular code reviews and using MyBatis generators can mitigate these.

Question 6

Is MyBatis good for microservices architectures?

Accepted Answer

Yes, MyBatis's lightweight nature makes it suitable for microservices where control over database interactions is crucial. However, consider the trade-off with more abstract ORMs for consistency across services, as MyBatis requires per-service SQL management.

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