SpringBoot 中使用 H2 数据库

1、加入POM

1        <!-- https://mvnrepository.com/artifact/com.h2database/h2 -->
2        <dependency>
3            <groupId>com.h2database</groupId>
4            <artifactId>h2</artifactId>
5            <version>1.4.200</version>
6        </dependency>
7
8        <!-- https://mvnrepository.com/artifact/com.baomidou/mybatis-plus-boot-starter -->
9        <dependency>
10            <groupId>com.baomidou</groupId>
11            <artifactId>mybatis-plus-boot-starter</artifactId>
12            <version>3.0.7</version>
13        </dependency>

2、配置 application.properties

1# spring h2 database configuration
2spring.h2.console.enabled=true
3spring.h2.console.path=/h2
4spring.datasource.driver-class-name=org.h2.Driver
5spring.datasource.url=jdbc:h2:mem:mytest;MODE=MYSQL;DB_CLOSE_DELAY=-1;DATABASE_TO_UPPER=false
6spring.datasource.username=sa
7spring.datasource.password=sa
8spring.datasource.schema-username=sa
9spring.datasource.schema-password=sa
10spring.datasource.data-username=sa
11spring.datasource.data-password=sa
12spring.datasource.schema=classpath:database/schema_*.sql
13spring.datasource.data=classpath:database/data_*.sql
14spring.datasource.initialization-mode=always
15spring.jmx.enabled=false
16
17
18# mybatis-plus
19mybatis-plus.global-config.banner=false
20mybatis-plus.global-config.db-config.id-type=auto
21mybatis-plus.global-config.db-config.field-strategy=not_empty
22mybatis-plus.global-config.db-config.table-underline=true
23mybatis-plus.global-config.db-config.db-type=h2
24mybatis-plus.global-config.db-config.logic-delete-value=1
25mybatis-plus.global-config.db-config.logic-not-delete-value=0

3、设置schema和data文件

1schema:
2DROP TABLE IF EXISTS t_base_user;
3
4CREATE TABLE t_base_user
5(
6    id INT(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
7    user_name VARCHAR(255) NULL DEFAULT NULL COMMENT '用户姓名',
8    create_time DATETIME NULL DEFAULT NULL COMMENT '创建时间',
9    PRIMARY KEY (id)
10);
11
12
13data：
14DELETE FROM t_base_user;
15
16INSERT INTO t_base_user (user_name, create_time) VALUES
17('Jone', now()),
18('Jack', now()),
19('Tom', now()),
20('Sandy', now()),
21('Billie', now());

4、实体、Mapper、Service

1@ApiModel(value = "用户实体")
2@Data
3@NoArgsConstructor
4@AllArgsConstructor
5@TableName("t_base_user")
6public class User implements Serializable {
7
8    @ApiModelProperty(value = "主键")
9    @TableId(value = "id", type = IdType.NONE)
10    private Long id;
11    @ApiModelProperty(value = "姓名")
12    private String userName;
13    @ApiModelProperty(value = "创建时间")
14    private Date createTime;
15}
16
17
18@Mapper
19public interface UserMapper extends BaseMapper<User> {
20}
21
22public interface UserService extends IService<User> {
23}
24
25
26@Service
27@Transactional
28public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements UserService {
29}