【SpringBoot】配置 MyBatis

<dependency>
    <groupId>org.mybatis.spring.bootgroupId>
    <artifactId>mybatis-spring-boot-starterartifactId>
    <version>3.0.3version>
dependency>

<dependency>
    <groupId>com.mysqlgroupId>
    <artifactId>mysql-connector-jartifactId>
    <scope>runtimescope>
dependency>

# application.properties

spring.datasource.url=jdbc:mysql://localhost:3306/my_db
spring.datasource.username=root
spring.datasource.password=root
# 实现数据库下划线字段与实体中的驼峰属性映射
mybatis.configuration.map-underscore-to-camel-case=true

# application.yml
spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql//localhost:3306/mybatis
    username: root
    password: root