[MyBatis] Learning summary three: Spring Boot integrates MyBatis

After learning some usages of MyBtais, I still wrote my personal blog - cms to check whether the MyBatis I learned is available. What is worth celebrating is that the simple cms system is online, the front and back ends are separated, and Spring Boot is developed. A RESTful API for front-end calls.

When learning MyBatis, we know that he has a public configuration file mybatis-config.xml, but when we use Spring Boot to integrate MyBatis, this public configuration file is no longer used. So, where do we write the public configuration file of MyBatis? ?

The answer is application.properties.

In fact, it is very early, in the official documentation of MyBatis has already said how MyBatis integrates with Spring Boot

Very simple, Spring Boot will help us with automatic configuration.

application

mybatis.type-aliases-package=com.example.domain.model
mybatis.type-handlers-package=com.example.typehandler
mybatis.configuration.map-underscore-to-camel-case=true
mybatis.configuration.default-fetch-size=100
mybatis.configuration.default-statement-timeout=30

This is an example provided by the official website.

Summarize

1. Look at what configuration can be provided to us in the configuration file, which may help us to a great extent.

2. In actual projects, multiple configuration schemes may be required: configuration during development, configuration during testing, and configuration when going online. Be flexible.

spring.profiles.active=dev

3. Finally, let's look at a common configuration:

mybatis.type-aliases-package=com.fengwenyi.demo1.entity
mybatis.mapper-locations=classpath:mapper/*.xml

material

1、mybatis-spring-boot-autoconfigure