当我在存储库中编写一些 JPA 查询时,Spring 启动停止
Posted
技术标签:
【中文标题】当我在存储库中编写一些 JPA 查询时,Spring 启动停止【英文标题】:Spring boot stops as I write some JPA queries in the repository 【发布时间】:2016-08-01 05:39:53 【问题描述】:我正在使用带有 H2 数据库的 Spring Boot。我的应用程序在控制台上以以下文本停止。
2016-08-01 10:36:08.610 INFO 3920 --- [ost-startStop-1] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2016-08-01 10:36:08.651 INFO 3920 --- [ost-startStop-1] org.hibernate.Version : HHH000412: Hibernate Core 4.3.11.Final
2016-08-01 10:36:08.651 INFO 3920 --- [ost-startStop-1] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2016-08-01 10:36:08.651 INFO 3920 --- [ost-startStop-1] org.hibernate.cfg.Environment : HHH000021: Bytecode provider name : javassist
2016-08-01 10:36:08.801 INFO 3920 --- [ost-startStop-1] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations 4.0.5.Final
2016-08-01 10:36:09.031 INFO 3920 --- [ost-startStop-1] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
2016-08-01 10:36:09.131 INFO 3920 --- [ost-startStop-1] o.h.h.i.ast.ASTQueryTranslatorFactory : HHH000397: Using ASTQueryTranslatorFactory
2016-08-01 10:36:09.291 INFO 3920 --- [ost-startStop-1] org.hibernate.tool.hbm2ddl.SchemaUpdate : HHH000228: Running hbm2ddl schema update
2016-08-01 10:36:09.291 INFO 3920 --- [ost-startStop-1] org.hibernate.tool.hbm2ddl.SchemaUpdate : HHH000102: Fetching database metadata
2016-08-01 10:36:09.301 INFO 3920 --- [ost-startStop-1] org.hibernate.tool.hbm2ddl.SchemaUpdate : HHH000396: Updating schema
2016-08-01 10:36:09.311 INFO 3920 --- [ost-startStop-1] o.hibernate.tool.hbm2ddl.TableMetadata : HHH000261: Table found: TEST.PUBLIC.EMAILDATA
2016-08-01 10:36:09.311 INFO 3920 --- [ost-startStop-1] o.hibernate.tool.hbm2ddl.TableMetadata : HHH000037: Columns: [quantity, emailto, id, autostart, emailfrom]
2016-08-01 10:36:09.311 INFO 3920 --- [ost-startStop-1] o.hibernate.tool.hbm2ddl.TableMetadata : HHH000108: Foreign keys: []
2016-08-01 10:36:09.311 INFO 3920 --- [ost-startStop-1] o.hibernate.tool.hbm2ddl.TableMetadata : HHH000126: Indexes: [primary_key_2]
2016-08-01 10:36:09.311 INFO 3920 --- [ost-startStop-1] o.hibernate.tool.hbm2ddl.TableMetadata : HHH000261: Table found: TEST.PUBLIC.STATUS
2016-08-01 10:36:09.311 INFO 3920 --- [ost-startStop-1] o.hibernate.tool.hbm2ddl.TableMetadata : HHH000037: Columns: [exchangefile, consolidate, processdate, aggregateall, scriptmaster, sendmail, id, insiderstrade]
2016-08-01 10:36:09.311 INFO 3920 --- [ost-startStop-1] o.hibernate.tool.hbm2ddl.TableMetadata : HHH000108: Foreign keys: []
2016-08-01 10:36:09.311 INFO 3920 --- [ost-startStop-1] o.hibernate.tool.hbm2ddl.TableMetadata : HHH000126: Indexes: [primary_key_9]
2016-08-01 10:36:09.311 INFO 3920 --- [ost-startStop-1] org.hibernate.tool.hbm2ddl.SchemaUpdate : HHH000232: Schema update complete
我的仓库是:
@Transactional
public interface EmailDataRepository extends JpaRepository<EmailData,Long>
@Query("SELECT p FROM EmailData P")
public EmailData findLastRow();
而 DBConfig 是:
@Configuration
@EnableTransactionManagement
@ComponentScan("com.demo.*")
@PropertySource("classpath:application.properties")
@EntityScan(basePackages = "com.demo.model")
@EnableJpaRepositories("com.demo.repository.main")
public class DBConfig ....
型号:
@Entity
@Table(name="EmailData")
public class EmailData
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
Long id;
private String emailTo;
private String emailFrom;
private String quantity;
private Boolean autoStart;
...
【问题讨论】:
【参考方案1】:您的H2
数据库网址应具有以下配置
DB_CLOSE_ON_EXIT=FALSE
Spring Boot 文档有一个引用:
如果出于某种原因,您确实为嵌入式数据库配置了连接 URL,则应注意确保禁用数据库的自动关闭功能。如果你使用 H2,你应该使用 DB_CLOSE_ON_EXIT=FALSE 来这样做。如果您使用的是 HSQLDB,则应确保不使用 shutdown=true。禁用数据库的自动关闭允许 Spring Boot 控制数据库何时关闭,从而确保在不再需要访问数据库时发生这种情况。
【讨论】:
以上是关于当我在存储库中编写一些 JPA 查询时,Spring 启动停止的主要内容,如果未能解决你的问题,请参考以下文章