依赖

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>

配置application

spring:
  datasource:
    username: root
    password: 123456
    url: jdbc:mysql://localhost:3306/mybatis?useUnicdoe=true&characterEncoding=utf-8&serverTimezone=UTC
    driver-class-name: com.mysql.jdbc.Driver

使用

@Controller
public class JDBCController {
    @Autowired
    JdbcTemplate jdbcTemplate;
    @RequestMapping("/userList")
    @ResponseBody
    public List<Map<String,Object>> userList(){
        String sql="select * from mybatis.user";
        List<Map<String, Object>> maps = jdbcTemplate.queryForList(sql);
        System.out.println(maps);
        return maps;
    }

}