运行基本 Spring Batch 示例时出错 - 原因：java.lang.ClassNotFoundException: org.hsqldb.jdbcDriver

Posted 2023-02-27

【中文标题】运行基本 Spring Batch 示例时出错 - 原因：java.lang.ClassNotFoundException: org.hsqldb.jdbcDriver

【英文标题】：Error running Basic Spring Batch example - Caused by: java.lang.ClassNotFoundException: org.hsqldb.jdbcDriver

【发布时间】：2012-10-08 14:42:43

【问题描述】：

我正在尝试使用 STS（SpringSource 工具套件）中的简单 spring 批处理项目模板运行示例 Spring 批处理项目。

为此，我在 Eclipse 中运行了以下步骤：

右键->新建->其他 选择 SpringSource Tool Suite -> Spring Template Project -> Simple Spring Batch 输入了相关的项目名称和包名称

然后我尝试使用

运行项目

mvn exec:java

我收到以下错误：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'exampleConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.batch.core.repository.JobRepository com.spring.hello.ExampleConfiguration.jobRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jobRepository': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Could not get Connection for extracting meta data; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'org.hsqldb.jdbcDriver'
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
at org.springframework.batch.core.launch.support.CommandLineJobRunner.start(CommandLineJobRunner.java:282)
at org.springframework.batch.core.launch.support.CommandLineJobRunner.main(CommandLineJobRunner.java:574)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:290)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.batch.core.repository.JobRepository com.spring.hello.ExampleConfiguration.jobRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jobRepository': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Could not get Connection for extracting meta data; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'org.hsqldb.jdbcDriver'
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)
... 20 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jobRepository': Invocation of init method failed; nested exception is org.springframework.jdbc.support.MetaDataAccessException: Could not get Connection for extracting meta data; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'org.hsqldb.jdbcDriver'
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:848)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:790)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:707)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 22 more
Caused by: org.springframework.jdbc.support.MetaDataAccessException: Could not get Connection for extracting meta data; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'org.hsqldb.jdbcDriver'
at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:293)
at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:320)
at org.springframework.batch.support.DatabaseType.fromMetaData(DatabaseType.java:93)
at org.springframework.batch.core.repository.support.JobRepositoryFactoryBean.afterPropertiesSet(JobRepositoryFactoryBean.java:145)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)
... 32 more
Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'org.hsqldb.jdbcDriver'
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80)
at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:280)
... 37 more
Caused by: org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'org.hsqldb.jdbcDriver'
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1136)
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
... 38 more
Caused by: java.lang.ClassNotFoundException: org.hsqldb.jdbcDriver
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1130)
... 41 more

似乎没有找到和/或正确加载 HSQLDB 驱动程序。

我已经检查了 Maven 依赖项，并且 hsqldb 肯定在其中，并且在类路径上被拉入 Eclipse。

    <dependency>
        <groupId>hsqldb</groupId>
        <artifactId>hsqldb</artifactId>
        <version>1.8.0.7</version>
    </dependency>

任何想法为什么我会看到这个？

编辑：添加 ApplicationContext xml

<?xml version="1.0" encoding="UTF-8"?>

http://www.springframework.org/schema/batch http://www.springframework.org/schema/batch/spring-batch-2.1.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-3.0.xsd">

<context:property-placeholder location="classpath:batch.properties" />

<context:component-scan base-package="com.spring.hello" />

<jdbc:initialize-database data-source="dataSource">
    <jdbc:script location="$batch.schema.script" />
</jdbc:initialize-database>

<batch:job-repository id="jobRepository" />

<import resource="classpath:/META-INF/spring/module-context.xml" />

【参考方案1】：

有时，Eclipse 的行为很奇怪。我猜 Eclipse 无法使用您新添加的依赖项（HSQLDB 驱动程序）更新项目构建路径。我建议您使用 Eclipse http://www.eclipse.org/m2e/ 的 maven 集成插件，这将使您的生活变得轻松。您可以从 eclipse(juno) 市场下载它。

【讨论】：

感谢回复，我其实已经在使用这个插件了，在Eclipse中可以看到对项目类路径的依赖。所以我认为这意味着 Eclipse 可以找到它

好的。然后试试这个，右键单击项目，Maven-->更新项目。我希望你在 M2 存储库中有 jdbc 驱动程序（hsqldb-1.8.*.jar）。这应该可以工作。

我试过这个，但不幸的是没有改变。我真的认为 Eclipse 可以找到 JAR，因为它列在项目构建路径的 Maven 依赖项文件夹下。

好的。您能否粘贴您的 applicationContext.xml 以供参考。 bydaway，我也怀疑 hsqldb 版本和 jdbc 连接器 jar 版本之间可能存在不匹配。

清除我的整个本地存储库然后重建已解决问题。我猜那里有一些损坏的 JAR 或其他东西。