jdbc:h2:mem:
  jdbc:h2:mem:<databaseName>
  jdbc:h2:mem:test_mem
  jdbc:h2:tcp://localhost/mem:db1

  jdbc:h2:[file:][<path>]<databaseName>
  jdbc:h2:~/test
  jdbc:h2:file:/data/sample
  jdbc:h2:file:C:/data/sample (Windows only)

  jdbc:h2:tcp://<server>[:<port>]/[<path>]<databaseName>
  jdbc:h2:tcp://localhost/~/test
  jdbc:h2:tcp://dbserv:8084/~/sample
  jdbc:h2:tcp://localhost/mem:test
  jdbc:h2:ssl://<server>[:<port>]/[<path>]<databaseName>
  jdbc:h2:ssl://localhost:8085/~/sample;

	<dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.0.1</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.2.0</version>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
        </dependency>

spring:
  datasource:
    driver-class-name: org.h2.Driver
    schema: classpath:db/schema.sql #，每次启动程序，程序都会运行schema.sql文件，对数据库的数据操作
    data: classpath:db/data.sql #，每次启动程序，程序都会运行data.sql文件，对数据库的数据操作
    url: jdbc:h2:file:./db/h2db #配置h2数据库的连接地址，该项目主要以嵌入式
    username: root
    password: 123456
  h2:
    console:
      enabled: true #开启web console功能

DROP TABLE IF EXISTS user;

CREATE TABLE user
(
  id BIGINT(20) NOT NULL COMMENT '主键ID',
  name VARCHAR(30) NULL DEFAULT NULL COMMENT '姓名',
  age INT(11) NULL DEFAULT NULL COMMENT '年龄',
  email VARCHAR(50) NULL DEFAULT NULL COMMENT '邮箱',
  PRIMARY KEY (id)
);

INSERT INTO user (id, name, age, email) VALUES
  (1, 'Eli', 18, 'Eli@example.com'),
  (2, 'Jack', 10, 'Jack@example.com'),
  (3, 'Tom', 28, 'Tom@example.com'),
  (4, 'Sandy', 21, 'Sandy@example.com'),
  (5, 'Billie', 24, 'Billie@example.com');

@Data
public class User {
    private Long id;
    private String name;
    private Integer age;
    private String email;
}

@Mapper
public interface UserDao extends BaseMapper<User> {


}

@SpringBootApplication
public class H2Application {

    public static void main(String[] args) {
        SpringApplication.run(H2Application.class,args);
    }

    @Resource
    private UserDao userMapper;


    @RestController
    public class TestController {
        @GetMapping(value = "/users")
        public List<User> users() {
            return userMapper.selectList(null);
        }
    }

}