SpringBoot+Spring Data JPA整合H2数据库的示例代码

<!--jpa-->
<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!--web-->
<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--h2-->
<dependency>
	<groupId>com.h2database</groupId>
	<artifactId>h2</artifactId>
	<scope>runtime</scope>
</dependency>
<!--lombok-->
<dependency>
	<groupId>org.projectlombok</groupId>
	<artifactId>lombok</artifactId>
	<optional>true</optional>
</dependency>

@RestController
public class UserController {

    @Autowired
    UserRepository userRepository;
   @RequestMapping("/list")
    public List<User> findAll(){
       List<User> userList = userRepository.findAll();
       return userList;
   }
   @RequestMapping("/save")
   public String save(User user){
       userRepository.save(user);
       return "保存成功";
   @RequestMapping("/update")
   public String update(User user){
       return "更新成功";
   @RequestMapping("/delete")
   public String delete(Integer id){
       userRepository.deleteById(id);
       return "删除成功";
}

@AllArgsConstructor
@NoArgsConstructor
@Entity
@Data
@Table(name = "user")
public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Integer id;
    private String name;
    private Integer age;
    private Integer gender;
}

@Repository
public interface UserRepository extends JpaRepository<User,Integer> {

}

drop table if exists user;
create table user(
    `id` int primary key auto_increment,
    `name` varchar(255) not null,
    `age` int not null,
    `gender` int not null
);

insert into user (id,name,age,gender) values (null, '张三',18,1);
insert into user (id,name,age,gender) values (null, '李四',19,1);
insert into user (id,name,age,gender) values (null, '王五',20,1);
insert into user (id,name,age,gender) values (null, '李六',21,1);

#---------服务器配置-----------
server.port=8080

#---------数据源配置-----------
spring.datasource.driver-class-name=org.h2.Driver
spring.datasource.url=jdbc:h2:file:./data;AUTO_SERVER=TRUE
spring.datasource.username=sa
spring.datasource.password=
#架构 (DDL) 脚本资源引用
spring.datasource.schema=classpath:db/schema.sql
#数据 (DML) 脚本资源引用
spring.datasource.data=classpath:db/data.sql
#SQL脚本编码
spring.datasource.sql-script-encoding=UTF-8
#初始化模式
spring.datasource.initialization-mode=ALWAYS
#如果在初始化数据库时发生错误，是否停止
spring.datasource.continue-on-error=true
#---------JPA配置-------------
#要操作的目标数据库
spring.jpa.database=h2
#控制台显示SQL语句
spring.jpa.show-sql=true
#更新或者创建数据表结构
spring.jpa.hibernate.ddl-auto=update
#物理命名策略的完全限定名称
spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
#是否在启动时初始化架构
spring.jpa.generate-ddl=true
#----------H2配置--------------
#http://localhost:8080/h2-console
spring.h2.console.path=/h2-console
#启用控制台
spring.h2.console.enabled=true

#架构 (DDL) 脚本资源引用
spring.datasource.schema=classpath:db/schema.sql
#数据 (DML) 脚本资源引用
spring.datasource.data=classpath:db/data.sql
#SQL脚本编码
spring.datasource.sql-script-encoding=UTF-8
#初始化模式
spring.datasource.initialization-mode=ALWAYS
#如果在初始化数据库时发生错误，是否停止
spring.datasource.continue-on-error=true

spring.datasource.url=jdbc:h2:file:./data;AUTO_SERVER=TRUE

jdbc:h2:mem:DBName;DB_CLOSE_DELAY=-1

jdbc:h2:file:~/.h2/DBName;AUTO_SERVER=TRUE

jdbc:h2:tcp://localhost/~/test 使用用户主目录
jdbc:h2:tcp://localhost//data/test 使用绝对路径