SpringBoot整合Druid

1. 导入Druid对应的starter

<dependency>
	<groupId>com.alibaba</groupId>
	<artifactId>druid-spring-boot-starter</artifactId>
	<version>1.2.6</version>
</dependency>
<dependency>
	<groupId>com.baomidou</groupId>
	<artifactId>mybatis-spring-boot-starter</artifactId>
	<version>3.4.3</version>
</dependency>

2. 变更Druid的配置方式

spring:
  datasource:
  	druid:
      driver-class-name: com.mysql.cj.jdbc.Driver
      url: jdbc:mysql://localhost:3306/ssm_db?serverTimezone=UTC	
      username: root
      password: root

3. 定义数据层接口与映射配置

@Mapper
public interface UserDao {
	@Select("select * from user")
	public List<User> getAll();
}

4. 测试类中注入dao接口，测试功能

@SpringBootTest
class Springboot07MybatisApplicationTests {
	@Autowired
	private BookDao bookDao;
	@Test
	public void testGetById() {
		Book book = bookDao.getById(1);
		System.out.println(book);
}
}