带有 H2 和 data.sql 的 Spring Boot Data JPA - 找不到表 [英] Spring Boot Data JPA with H2 and data.sql - Table not Found

问题描述

我有一个 Spring Boot 2.5.0 项目.我正在将 spring-data-jap 与 h2 内存数据库一起使用.我想在启动时用 data.sql 文件填充数据，但我得到一个表未找到异常.如果我删除 data.sql 文件，我可以看到我的实体的表会自动创建.但是，如果我包含 data.sql 文件，则会收到错误消息，指出该表不存在.也许是我的 sql 语法错误，我错误地配置了 h2 数据库?

applicaltion.yml

弹簧:数据源:网址:jdbc:h2:mem:test驱动程序类名称:org.h2.Driver用户名:sa密码:sajpa:数据库平台:org.hibernate.dialect.H2Dialect调试:真

data.sql

INSERT INTO BUSINESS_SUMMARY VALUES (1, ALM470", B48", 3);

BusinessSummary.java 实体

@NoArgsConstructor(access = AccessLevel.PROTECTED)@Getter@实体公共类业务摘要{@Id私人长ID；私人字符串businessId;私人字符串businessDomainId;私人整数城市代码；}

BusinessSummaryRepository.java

@Repository公共接口 BusinessSummaryRepository 扩展 JpaRepository<BusinessSummary, Long>{}

例外:

Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Table "BUSINESS_SUMMARY";没有找到；SQL语句:INSERT INTO BUSINESS_SUMMARY VALUES(1, ALM470", B48", 3) [42102-200]

解决方案

spring.jpa.defer-datasource-initialization=true

<块引用>

默认情况下，data.sql 脚本现在在 Hibernate 之前运行初始化.这与基于脚本的基本行为保持一致与 Flyway 和 Liquibase 的初始化.

<块引用>

如果你想使用data.sql 填充由 Hibernate 创建的模式，设置spring.jpa.defer-datasource-initialization 为 true.搅拌时不推荐使用数据库初始化技术，这会还允许您使用 schema.sql 脚本来构建在通过 data.sql 填充之前由 Hibernate 创建的架构.

您必须将 spring.jpa.defer-datasource-initialization 转换为 yml.

I have a Spring Boot 2.5.0 project. I'm using spring-data-jap with the h2 in-memory database. I want to populate data on startup with a data.sql file but I'm getting a table not found exception. If I remove the data.sql file, I can see that a table for my entity does get created automatically. But if I include the data.sql file, I get the error saying the table doesn't exist. Maybe it is an error with my sql syntax of I have misconfigured the h2 database?

applicaltion.yml

spring:
  datasource:
    url: jdbc:h2:mem:test
    driverClassName: org.h2.Driver
    username: sa
    password: sa
  jpa:
    database-platform: org.hibernate.dialect.H2Dialect

debug: true  

data.sql

INSERT INTO BUSINESS_SUMMARY VALUES (1, "ALM470", "B48", 3);

BusinessSummary.java entity

@NoArgsConstructor(access = AccessLevel.PROTECTED)
@Getter
@Entity
public class BusinessSummary {

    @Id
    private Long id;
    private String businessId;
    private String businessDomainId;
    private Integer cityCode;
}

BusinessSummaryRepository.java

@Repository
public interface BusinessSummaryRepository extends JpaRepository<BusinessSummary, Long> {
}

Exception:

Caused by: org.h2.jdbc.JdbcSQLSyntaxErrorException: Table "BUSINESS_SUMMARY" not found; SQL statement:
INSERT INTO BUSINESS_SUMMARY VALUES(1, "ALM470", "B48", 3) [42102-200]

解决方案

spring.jpa.defer-datasource-initialization=true

By default, data.sql scripts are now run before Hibernate is initialized. This aligns the behavior of basic script-based initialization with that of Flyway and Liquibase.

If you want to use data.sql to populate a schema created by Hibernate, set spring.jpa.defer-datasource-initialization to true. While mixing database initialization technologies is not recommended, this will also allow you to use a schema.sql script to build upon a Hibernate-created schema before it’s populated via data.sql.

you'll have to convert spring.jpa.defer-datasource-initialization to yml.

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