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如何正確集成HSQLDB和Spring Boot？

發(fā)布時(shí)間：2024-03-09 01:32:24 作者：網(wǎng)友整理

本文介紹了如何正確集成HSQLDB和Spring Boot？的處理方法，對(duì)大家解決問(wèn)題具有一定的參考價(jià)值，需要的朋友們下面隨著小編來(lái)一起學(xué)習(xí)吧！

問(wèn)題描述

我看到此帖子：How to start HSQLDB in server mode from Spring boot application但無(wú)法使其正常工作。

我的目標(biāo)是構(gòu)建一個(gè)Spring啟動(dòng)應(yīng)用程序，

在服務(wù)器模式下啟動(dòng)HSQLDB，文件持久化(重啟應(yīng)用程序時(shí)恢復(fù))
公開(kāi)與此hsqldb實(shí)例通信的公共API
讓我可以遠(yuǎn)程連接到此hsqldb服務(wù)器，例如使用hsqldb.jar中包含的嵌入式Swing應(yīng)用程序。

所以我試著復(fù)制引用的帖子的標(biāo)記答案：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="hqlServer" class="org.hsqldb.server.Server" init-method="start" destroy-method="stop">
    <property name="properties"><bean class="org.hsqldb.persist.HsqlProperties">
        <constructor-arg><props>
        <prop key="server.database.0">file:/tmp/mydb.db</prop>
        <prop key="server.dbname.0">mydb</prop><!--DB name for network connection-->
        <prop key="server.no_system_exit">true</prop>
        <prop key="server.port">9001</prop><!--default port is 9001 -->
        <prop key="server.remote_open">true</prop>
        </props></constructor-arg>
    </bean></property>
</bean>
</beans>

我知道我下一步可以連接到jdbc:hsqldb:hsql://localhost:9001/mydb，對(duì)嗎？

好的，我在我的應(yīng)用程序中指定了所有參數(shù)。yml

spring:
  profiles:
    active: dev
  datasource:
    driver-class-name: org.hsqldb.jdbc.JDBCDriver 
    url: jdbc:hsqldb:hsql://localhost:9001/mydb
    username: sa
    password: 
  jpa:
    database-platform: org.hibernate.dialect.HSQLDialect
    show-sql: true
    hibernate:
      ddl-auto: update

并最終開(kāi)發(fā)了App部分(控制器、服務(wù)和JPA層)。

我還將XML部件包含到應(yīng)用程序中

@SpringBootApplication
@ImportResource(value="classpath:/hsql_cfg.xml")
public class MyApp {
...
}

但是，很明顯，它不起作用，并給出以下錯(cuò)誤：

  .   ____          _            __ _ _
 /\ / ___'_ __ _ _(_)_ __  __ _    
( ( )\___ | '_ | '_| | '_ / _` |    
 \/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
[32m :: Spring Boot :: [39m      [2m (v2.2.2.RELEASE)[0;39m

[2m2021-11-17 15:19:56.295[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mtest.MyApp                              [0;39m [2m:[0;39m Starting MyApp on iMac.local with PID 47627 (/Users/ludovic/workspace/test-hsqldb/target/classes started by ludovic in /Users/ludovic/workspace/test-hsqldb)
[2m2021-11-17 15:19:56.298[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mtest.MyApp                              [0;39m [2m:[0;39m The following profiles are active: dev
[2m2021-11-17 15:19:56.709[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36m.s.d.r.c.RepositoryConfigurationDelegate[0;39m [2m:[0;39m Bootstrapping Spring Data JPA repositories in DEFAULT mode.
[2m2021-11-17 15:19:56.724[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36m.s.d.r.c.RepositoryConfigurationDelegate[0;39m [2m:[0;39m Finished Spring Data repository scanning in 8ms. Found 0 JPA repository interfaces.
[2m2021-11-17 15:19:57.009[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.hibernate.jpa.internal.util.LogHelper [0;39m [2m:[0;39m HHH000204: Processing PersistenceUnitInfo [name: default]
[2m2021-11-17 15:19:57.057[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36morg.hibernate.Version                   [0;39m [2m:[0;39m HHH000412: Hibernate Core {5.4.9.Final}
[2m2021-11-17 15:19:57.166[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.hibernate.annotations.common.Version  [0;39m [2m:[0;39m HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
[2m2021-11-17 15:19:57.241[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mcom.zaxxer.hikari.HikariDataSource      [0;39m [2m:[0;39m HikariPool-1 - Starting...
[2m2021-11-17 15:19:57.285[0;39m [31mERROR[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mcom.zaxxer.hikari.pool.HikariPool       [0;39m [2m:[0;39m HikariPool-1 - Exception during pool initialization.

java.sql.SQLTransientConnectionException: java.net.ConnectException: Connection refused (Connection refused)
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.jdbc.JDBCDriver$1.run(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
Caused by: org.hsqldb.HsqlException: java.net.ConnectException: Connection refused (Connection refused)
    at org.hsqldb.ClientConnection.openConnection(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.ClientConnection.initConnection(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.ClientConnection.<init>(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    ... 2 common frames omitted
Caused by: java.net.ConnectException: Connection refused (Connection refused)
    at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_241]
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_241]
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_241]
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_241]
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_241]
    at java.net.Socket.connect(Socket.java:606) ~[na:1.8.0_241]
    at java.net.Socket.connect(Socket.java:555) ~[na:1.8.0_241]
    at java.net.Socket.<init>(Socket.java:451) ~[na:1.8.0_241]
    at java.net.Socket.<init>(Socket.java:228) ~[na:1.8.0_241]
    at org.hsqldb.server.HsqlSocketFactory.createSocket(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    ... 5 common frames omitted

[2m2021-11-17 15:19:57.286[0;39m [33m WARN[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.h.e.j.e.i.JdbcEnvironmentInitiator    [0;39m [2m:[0;39m HHH000342: Could not obtain connection to query metadata : java.net.ConnectException: Connection refused (Connection refused)
[2m2021-11-17 15:19:57.296[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36morg.hibernate.dialect.Dialect           [0;39m [2m:[0;39m HHH000400: Using dialect: org.hibernate.dialect.HSQLDialect
[2m2021-11-17 15:19:57.439[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mcom.zaxxer.hikari.HikariDataSource      [0;39m [2m:[0;39m HikariPool-1 - Starting...
[2m2021-11-17 15:19:57.441[0;39m [31mERROR[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mcom.zaxxer.hikari.pool.HikariPool       [0;39m [2m:[0;39m HikariPool-1 - Exception during pool initialization.

java.sql.SQLTransientConnectionException: java.net.ConnectException: Connection refused (Connection refused)
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.jdbc.JDBCDriver$1.run(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
Caused by: org.hsqldb.HsqlException: java.net.ConnectException: Connection refused (Connection refused)
    at org.hsqldb.ClientConnection.openConnection(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.ClientConnection.initConnection(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.ClientConnection.<init>(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    ... 2 common frames omitted
Caused by: java.net.ConnectException: Connection refused (Connection refused)
    at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_241]
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_241]
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_241]
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_241]
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_241]
    at java.net.Socket.connect(Socket.java:606) ~[na:1.8.0_241]
    at java.net.Socket.connect(Socket.java:555) ~[na:1.8.0_241]
    at java.net.Socket.<init>(Socket.java:451) ~[na:1.8.0_241]
    at java.net.Socket.<init>(Socket.java:228) ~[na:1.8.0_241]
    at org.hsqldb.server.HsqlSocketFactory.createSocket(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    ... 5 common frames omitted

[2m2021-11-17 15:19:57.442[0;39m [33m WARN[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.h.engine.jdbc.spi.SqlExceptionHelper  [0;39m [2m:[0;39m SQL Error: -1301, SQLState: 08001
[2m2021-11-17 15:19:57.442[0;39m [31mERROR[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.h.engine.jdbc.spi.SqlExceptionHelper  [0;39m [2m:[0;39m java.net.ConnectException: Connection refused (Connection refused)
[2m2021-11-17 15:19:57.445[0;39m [33m WARN[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36ms.c.a.AnnotationConfigApplicationContext[0;39m [2m:[0;39m Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to open JDBC Connection for DDL execution
[2m2021-11-17 15:19:57.450[0;39m [32m INFO[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mConditionEvaluationReportLoggingListener[0;39m [2m:[0;39m 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
[2m2021-11-17 15:19:57.452[0;39m [31mERROR[0;39m [35m47627[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.s.boot.SpringApplication              [0;39m [2m:[0;39m Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to open JDBC Connection for DDL execution
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1108) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    at test.MyApp.main(MyApp.java:11) [classes/:na]
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to open JDBC Connection for DDL execution
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:403) ~[spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:378) ~[spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1855) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1792) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    ... 15 common frames omitted
Caused by: org.hibernate.exception.JDBCConnectionException: Unable to open JDBC Connection for DDL execution
    at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:48) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl.getIsolatedConnection(DdlTransactionIsolatorNonJtaImpl.java:69) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.tool.schema.internal.exec.ImprovedExtractionContextImpl.getJdbcConnection(ImprovedExtractionContextImpl.java:60) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.tool.schema.extract.internal.SequenceInformationExtractorLegacyImpl.extractMetadata(SequenceInformationExtractorLegacyImpl.java:40) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.initializeSequences(DatabaseInformationImpl.java:65) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.<init>(DatabaseInformationImpl.java:59) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.tool.schema.internal.Helper.buildDatabaseInformation(Helper.java:155) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:96) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:184) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:73) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:320) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:462) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1237) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:391) ~[spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    ... 19 common frames omitted
Caused by: java.sql.SQLTransientConnectionException: java.net.ConnectException: Connection refused (Connection refused)
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.jdbc.JDBCDriver$1.run(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
Caused by: org.hsqldb.HsqlException: java.net.ConnectException: Connection refused (Connection refused)
    at org.hsqldb.ClientConnection.openConnection(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.ClientConnection.initConnection(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    at org.hsqldb.ClientConnection.<init>(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    ... 2 common frames omitted
Caused by: java.net.ConnectException: Connection refused (Connection refused)
    at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_241]
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_241]
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_241]
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_241]
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_241]
    at java.net.Socket.connect(Socket.java:606) ~[na:1.8.0_241]
    at java.net.Socket.connect(Socket.java:555) ~[na:1.8.0_241]
    at java.net.Socket.<init>(Socket.java:451) ~[na:1.8.0_241]
    at java.net.Socket.<init>(Socket.java:228) ~[na:1.8.0_241]
    at org.hsqldb.server.HsqlSocketFactory.createSocket(Unknown Source) ~[hsqldb-2.4.0.jar:2.4.0]
    ... 5 common frames omitted

我開(kāi)始認(rèn)為我的應(yīng)用程序在服務(wù)器啟動(dòng)之前嘗試連接，這是可能的嗎？
有沒(méi)有一種方法可以告訴Spring先啟動(dòng)服務(wù)器，然后創(chuàng)造它的魔力？

謝謝

推薦答案

甚至將above服務(wù)器組件替換為：

@Bean(initMethod = "start", destroyMethod = "stop")
public Server hsqlServer(@Value("classpath:/hsqldb.properties") Resource props) throws IOException, AclFormatException {
    Server bean = new org.hsqldb.server.Server();
    bean.setProperties(PropertiesLoaderUtils.loadProperties(props));
    return bean;
}

類(lèi)似于this xml configuration，不顯示任何問(wèn)題(效果像咒語(yǔ))。

但是，添加此依賴(lài)項(xiàng)：

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

破壞一切！(上下文未加載：)

Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set

盡快修復(fù)此問(wèn)題(&Q；)：

spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.HSQLDialect

我們收到異常：

...Caused by: java.net.ConnectException: Connection refused: connect

..HikariPool的某個(gè)地方…

解決方案/解決方法：

import java.io.IOException;
import javax.sql.DataSource;
import org.hsqldb.server.Server;
import org.hsqldb.server.ServerAcl.AclFormatException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.DependsOn;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PropertiesLoaderUtils;

@SpringBootApplication
@EnableConfigurationProperties
public class HsqldbRunnerApplication {

    public static void main(String[] args) {
        SpringApplication.run(HsqldbRunnerApplication.class, args);
    }

    @Bean(initMethod = "start", destroyMethod = "stop")
    public Server hsqlServer(@Value("classpath:/hsqldb.properties") Resource props) throws IOException, AclFormatException {
        Server bean = new Server();
        bean.setProperties(PropertiesLoaderUtils.loadProperties(props));
        return bean;
    }

    @Bean
    @DependsOn("hsqlServer") // This is important!!
    public DataSource getDataSource(
            @Autowired DataSourceProperties dsProps) {
        DataSourceBuilder dataSourceBuilder = DataSourceBuilder.create();
        dataSourceBuilder.driverClassName(dsProps.getDriverClassName());
        dataSourceBuilder.url(dsProps.getUrl());
        dataSourceBuilder.username(dsProps.getUsername());
        dataSourceBuilder.password(dsProps.getPassword());
        return dataSourceBuilder.build();
    }

}

因此，我們需要：

定義我們自己的數(shù)據(jù)源Bean，并將其依賴(lài)于我們的&quot；hsqlServer&quot；。

將控制器移動(dòng)到新的類(lèi)(這還不錯(cuò)，只對(duì)&quot；Briity&Quot；適用)，否則我們會(huì)得到循環(huán)依賴(lài)項(xiàng)/未設(shè)置的數(shù)據(jù)源。

這篇關(guān)于如何正確集成HSQLDB和Spring Boot？的文章就介紹到這了，希望我們推薦的答案對(duì)大家有所幫助，

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