堆栈内存溢出
  简体   繁体   English

如何正确集成 HSQLDB 与 Spring 引导？

[英]How to correctly integrate HSQLDB with Spring Boot?

 原文  2021-11-17 14:24:13  0   2    java/ spring-boot/ spring-data-jpa/ hsqldb

问题描述

I saw this post: How to start HSQLDB in server mode from Spring boot application but can't manage to get it working.我看到了这篇文章： How to start HSQLDB in server mode from Spring boot application但无法使其正常工作。

My goal is to build a Spring boot app that我的目标是构建一个 Spring 启动应用程序

  • Start HSQLDB in server mode, with file persistance (to get it back when I restart my app)以服务器模式启动 HSQLDB，并具有文件持久性（在我重新启动应用程序时将其取回）
  • Expose a public API that communicates with this hsqldb instance公开与此 hsqldb 实例通信的公共 API
  • Let me the possibility to connect to this hsqldb server remotely, for instance using the embedded Swing app contained into hsqldb.jar.让我可以远程连接到这个 hsqldb 服务器，例如使用包含在 hsqldb.jar 中的嵌入式 Swing 应用程序。

So I tried to reproduce the marked answer of the quoted post:所以我试图重现引用帖子的标记答案：

<?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>

I understand I next could be able to connect to jdbc:hsqldb:hsql://localhost:9001/mydb , right?我知道我接下来可以连接到jdbc:hsqldb:hsql://localhost:9001/mydb ，对吧？

Well, I specified all the parameters into my application.yml好吧，我在 application.yml 中指定了所有参数

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

and finally, developed the App part (Controller, Services and JPA layer).最后，开发了 App 部分（Controller、Services 和 JPA 层）。

I also included the xml part into the App我还将 xml 部分包含在应用程序中

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

But, obviously, it doesn't work and gives me the following error:但是，显然，它不起作用并给我以下错误：

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
[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

I'm starting thinking that my app is trying to connect before server is started, is it possible?我开始认为我的应用程序在服务器启动之前尝试连接，这可能吗？ is there a way to tell to Spring to firstly start the server and then, make its magic?有没有办法告诉 Spring 首先启动服务器，然后让它变魔术？

Thanks谢谢

2 个解决方案

解决方案1
 0  2021-11-17 17:59:00

These are quite "unconditional goals" and I would not call that "correctly integrated", but there you go:这些是相当“无条件的目标”，我不会称其为“正确集成”，但你有 go：

pom.xml: pom.xml：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.6</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.stackoverflow</groupId>
    <artifactId>hsqldb-runner</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.hsqldb</groupId>
            <artifactId>hsqldb</artifactId><!-- as compile(!) dependency -->
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId><!-- for the endpoints -->
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId><!-- for simple jdbc access -->
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

With friendly help of link , an additional @Component annotation and some Properties loading , we do that:在link的友好帮助下，一个额外的@Component注释和一些Properties loading ，我们这样做了：

package com.stackoverflow.hsqldbrunner;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Properties;

import org.hsqldb.Server;
import org.hsqldb.persist.HsqlProperties;
import org.hsqldb.server.ServerAcl.AclFormatException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.SmartLifecycle;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PropertiesLoaderUtils;
import org.springframework.stereotype.Component;

@Component
public class HyperSqlDbServer implements SmartLifecycle {
    private final Logger logger = LoggerFactory.getLogger(HyperSqlDbServer.class);
    private HsqlProperties properties;
    private Server server;
    private boolean running = false;

    public HyperSqlDbServer(@Value("classpath:/hsqldb.properties") Resource serverProps) throws IOException {
        Properties props = PropertiesLoaderUtils.loadProperties(serverProps);
        if (props.elements().hasMoreElements() && logger.isDebugEnabled()) {
            StringWriter writer = new StringWriter();
            props.list(new PrintWriter(writer));
            logger.debug(writer.toString());
        }
        properties = new HsqlProperties(props);
    }

    @Override
    public boolean isRunning() {
        if (server != null)
            server.checkRunning(running);
        return running;
    }

    @Override
    public void start() {
        if (server == null) {
            logger.info("Starting HSQL server...");
            server = new Server();
            try {
                server.setProperties(properties);
                server.start();
                running = true;
            } catch (AclFormatException afe) {
                logger.error("Error starting HSQL server.", afe);
            } catch (IOException e) {
                logger.error("Error starting HSQL server.", e);
            }
        }
    }

    @Override
    public void stop() {
        logger.info("Stopping HSQL server...");
        if (server != null) {
            server.stop();
            running = false;
        }
    }

    @Override
    public int getPhase() {
        return 0;
    }

    @Override
    public boolean isAutoStartup() {
        return true;
    }

    @Override
    public void stop(Runnable runnable) {
        stop();
        runnable.run();
    }
}

Main class/Config/Controller:主类/配置/控制器：

package com.stackoverflow.hsqldbrunner;

import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@RestController
public class HsqldbRunnerApplication {

    @Autowired
    JdbcTemplate jdbcTemplate;

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

    @GetMapping("/query")
    public List<Map<String, Object>> query(@RequestParam String sql) {
        return jdbcTemplate.queryForList(sql);
    }

    @RequestMapping("/execute")
    public void execute(@RequestParam String sql) {
        jdbcTemplate.execute(sql);
    }
}

then with this src/main/resources/hsqldb.properties:然后使用这个 src/main/resources/hsqldb.properties：

server.database.0=file:C:/hsqldb/demobase 
server.dbname.0=demobase
#server.database.n
#server.dbname.n    
server.silent=false 
server.trace=false
server.daemon=false
server.remote_open=true

and this src/main/resources/application.properties而这个 src/main/resources/application.properties

spring.datasource.url=jdbc:hsqldb:hsql://localhost/demobase
spring.datasource.user=SA
spring.datasource.password=

..when we run: ..当我们运行时：

mvn spring-boot:run

We get:我们得到：

  • Start HSQLDB in server mode, with file persistence (to get it back when I restart my app)以服务器模式启动 HSQLDB，并具有文件持久性（在我重新启动应用程序时将其取回）

see here:看这里：

2021-11-17 17:35:58.652  INFO 3352 --- [  restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2021-11-17 17:35:58.652  INFO 3352 --- [  restartedMain] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 313 ms
2021-11-17 17:35:58.780  INFO 3352 --- [  restartedMain] o.s.b.d.a.OptionalLiveReloadServer       : LiveReload server is running on port 35729
2021-11-17 17:35:58.787  INFO 3352 --- [  restartedMain] c.s.hsqldbrunner.HyperSqlDbServer        : Starting HSQL server...
[Server@71142d78]: [Thread[restartedMain,5,main]]: start() entered
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: run() entered
[Server@71142d78]: Initiating startup sequence...
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.maxdatabases=10
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.remote_open=true
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.tls=false
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.daemon=false  
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.trace=false
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.database.0=file:C:/hsqldb/demobase 
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.restart_on_shutdown=false
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.no_system_exit=true
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.silent=false 
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.default_page=index.html
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.dbname.0=demobase
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.address=0.0.0.0
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: server.root=.
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: openServerSocket() entered
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: Got server socket: ServerSocket[addr=0.0.0.0/0.0.0.0,localport=9001]
[Server@71142d78]: Server socket opened successfully in 0 ms.
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: openServerSocket() exiting
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: openDatabases() entered
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: Opening database: [file:C:/hsqldb/demobase ]
[Server@71142d78]: Database [index=0, id=0, db=file:C:/hsqldb/demobase , alias=demobase] opened successfully in 0 ms.
[Server@71142d78]: [Thread[HSQLDB Server @71142d78,5,main]]: openDatabases() exiting
[Server@71142d78]: Startup sequence completed in 0 ms.
[Server@71142d78]: 2021-11-17 16:35:58.789 HSQLDB server 2.6.0 is online on port 9001
[Server@71142d78]: To close normally, connect and execute SHUTDOWN SQL
[Server@71142d78]: From command line, use [Ctrl]+[C] to abort abruptly
[Server@71142d78]: [Thread[restartedMain,5,main]]: start() exiting
2021-11-17 17:35:58.896  INFO 3352 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2021-11-17 17:35:58.900  INFO 3352 --- [  restartedMain] c.s.h.HsqldbRunnerApplication            : Started HsqldbRunnerApplication in 0.603 seconds (JVM running for 1330.867)
  • Expose a public API that communicates with this hsqldb instance:公开与此 hsqldb 实例通信的公共 API：
  • /execute : executes (arbitrary) sql without expected result (jdbcTemplate.execute():void) /execute ：执行（任意）sql 没有预期的结果（jdbcTemplate.execute（）：void）
  • /query : to query (for a List<Map<String, Object>> ) /query ：查询（对于List<Map<String, Object>> ）

eg let's take this sql snippet:例如，让我们使用这个 sql 片段：

CREATE TABLE demo(id INT NOT NULL,title VARCHAR(50),submission_date DATE,PRIMARY KEY (id));

and issue it to our browser like:并将其发布到我们的浏览器，例如：

http://localhost:8080/execute?sql=CREATE%20TABLE%20demo(id%20INT%20NOT%20NULL,title%20VARCHAR(50),submission_date%20DATE,PRIMARY%20KEY%20(id))%3B

then然后

INSERT INTO demo VALUES (1,'foo',now()),(2,'bar',now());

to:至：

http://localhost:8080/execute?sql=INSERT%20INTO%20demo%20VALUES%20(1%2C%27foo%27%2Cnow())%2C(2%2C%27bar%27%2Cnow())%3B

A query:一个问题：

SELECT * FROM demo;

looks like:好像：

http://localhost:8080/query?sql=SELECT%20*%20FROM%20demo%3B

and returns:并返回：

[{"ID":1,"TITLE":"foo","SUBMISSION_DATE":"2021-11-17"},{"ID":2,"TITLE":"bar","SUBMISSION_DATE":"2021-11-17"}]
  • Let me the possibility to connect to this hsqldb server remotely, for instance using the embedded Swing app contained into hsqldb.jar.让我可以远程连接到这个 hsqldb 服务器，例如使用包含在 hsqldb.jar 中的嵌入式 Swing 应用程序。

(Remote it has to be tested, but) looks from localhost like this: （远程它必须经过测试，但是）从 localhost 看起来像这样：

HSQLDB Swing 客户端截图

.. AND we get (all) hsqldb server logging to our spring application. .. 我们得到（所有）hsqldb 服务器日志记录到我们的 spring 应用程序。

All combined in github repo .所有组合在github repo中。 Have fun, enjoy & DON'T USE THAT in production;玩得开心，享受并且不要在生产中使用它； ;) ;)

more links:更多链接：

解决方案2
 0  2021-11-17 21:40:10

Even replacing the above server component with this:甚至用这个替换上面的服务器组件：

@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;
}

,which is analogous to this xml configuration , shows NO ISSUES (works like charm). ，类似于此 xml 配置，显示没有问题（像魅力一样工作）。

BUT, adding this dependency:但是，添加此依赖项：

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

breaks everything : (Context doesn't load with:)打破一切:(上下文不加载:)

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

As soon "fixing" this:一旦“修复”这个：

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

We get Exception:我们得到异常：

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

..somewhere in HikariPool.... ..在HikariPool的某个地方....

Solution/Workaround:解决方案/解决方法：

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();
    }

}

So, we need to:所以，我们需要：

  • define our own data source bean, and depend that (make it wait) on our "hsqlServer".定义我们自己的数据源bean，并依赖（让它等待）我们的“hsqlServer”。

  • move Controller to new class(es) (which is not bad, and was only in place for "brevity"), otherwise we get circular dependencies/unset datasources.将 Controller 移动到新的类（这还不错，只是为了“简洁”而存在），否则我们会得到循环依赖/未设置的数据源。

暂无
暂无

声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

相关问题 如何将 ReactJS 与 Spring Boot 集成 - How to integrate ReactJS with spring Boot 如何将Keycloak 7与Spring Boot 2集成 - How to integrate Keycloak 7 with Spring Boot 2 如何将Spring Boot集成到项目中 - how to Integrate spring boot in project Spring Boot无法从HSQLDB启动 - Spring boot fails to start with HSQLDB 如何在 Spring 引导测试中连接到内存中的 HSQLDB 以进行查询 - How to connect to HSQLDB in-memory in Spring Boot tests to make a query 如何将Spring Boot与Hibernate集成？ - How can I integrate Spring Boot with Hibernate? 如何将ElasticSearch与数据库和Spring Boot集成 - How to integrate elasticSearch with a database and Spring boot 如何将 swagger 与球衣 + spring-boot 结合起来 - How to integrate swagger with jersey + spring-boot 如何整合Spring Boot，Camel和Mybatis - How to integrate Spring Boot, Camel and Mybatis 如何将 GraphiQL 与 Spring-Boot 集成？ - How to integrate GraphiQL with Spring-Boot?
相关标签
 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM