SpringBoot集成H2数据库的实现示例

<dependency>
  <groupId>com.h2database</groupId>
  <artifactId>h2</artifactId>
  <scope>compile</scope>
</dependency>

spring:
  datasource:
    url: jdbc:h2:~/user
    driver-class-name: org.h2.Driver
    username: root
    password: 123456
  h2:
    console:
      path: /h2-console  #h2嵌入式数据库控制台
      enabled: true

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.context.ApplicationContext;
import org.springframework.core.io.Resource;
import org.springframework.jdbc.datasource.init.ScriptUtils;
import org.springframework.stereotype.Service;

import javax.annotation.PostConstruct;
import javax.sql.DataSource;
import java.io.File;

/**
 * 初始化h2数据库
 */
@Slf4j
@Service
// DataSource创建完后才初始化此类
@AutoConfigureAfter(DataSource.class)
public class H2DataSourceConfig {

    //初始化sql
    private static final String schema = "classpath:db/schema-h2.sql";

    @Autowired
    DataSource dataSource;

    @Autowired
    ApplicationContext applicationContext;

    @PostConstruct
    public void init() throws Exception {
        //初始化本地数据库
        String userHome = System.getProperty("user.home");//获取系统用户目录
        File f = new File(userHome + File.separator + "h2.lck");
        if (!f.exists()) {
            log.info("--------------初始化h2数据----------------------");
            f.createNewFile();
            Resource resource = applicationContext.getResource(schema);
            ScriptUtils.executeSqlScript(dataSource.getConnection(), resource);
        } else {
            log.info("--------------h2数据库已经存在----------------------");
        }
    }
}

DROP TABLE IF EXISTS student;
CREATE TABLE student
(
    id BIGINT NOT NULL COMMENT 'id',
    name VARCHAR(30)  COMMENT '姓名',
    age INT COMMENT '年龄',
    PRIMARY KEY (id)
);
insert into student(id,name,age) values(1, 'zhangsan',23);
insert into student(id,name,age) values(2, 'lisi',45);
insert into student(id,name,age) values(3, 'wangwu',12);