springboot + mybatis 引包

以下是在Spring Boot项目中引入MyBatis的步骤：

1.在pom.xml文件中添加MyBatis和MyBatis-Spring的依赖：

<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.4</version>
</dependency>
<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>3.4.2</version>
</dependency>

2.在application.properties或application.yml文件中配置数据源信息：

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=root

3.在MyBatis的Mapper接口中编写SQL语句，并在Mapper.xml文件中进行映射。

4.在Spring Boot的启动类中添加@MapperScan注解，指定Mapper接口所在的包路径：

@SpringBootApplication
@MapperScan("com.example.demo.mapper")
public class DemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}