數據源HSQLDB

Question

我在我的應用程序加載Spring 3.2.2，內applicationContext.xml：

不過，我收到以下異常：

344 [main] INFO org.springframework.beans.factory.support.DefaultListableBeanFactory - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@120d62b: defining beans [org.springframework.aop.config.internalAutoProxyCreator,org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0,org.springframework.transaction.interceptor.TransactionInterceptor#0,org.springframework.transaction.config.internalTransactionAdvisor,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,personDao,dataSource,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor]; root of factory hierarchy 
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [applicationContext.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'driverClassName' of bean class [org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean]: Bean property 'driverClassName' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter? 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1429) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1134) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1117) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:922) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) 
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) 
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) 
    at com.testPackage.App.main(App.java:11) 
Caused by: org.springframework.beans.NotWritablePropertyException: Invalid property 'driverClassName' of bean class [org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean]: Bean property 'driverClassName' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter? 
    at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:1042) 
    at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:902) 
    at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:75) 
    at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:57) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1426) 
    ... 13 more 

我applicationContext.xml看起來像這樣：

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:security="http://www.springframework.org/schema/security" 
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://www.springframework.org/schema/aop 
         http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
         http://www.springframework.org/schema/beans 
         http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
         http://www.springframework.org/schema/context 
         http://www.springframework.org/schema/context/spring-context-3.2.xsd 
         http://www.springframework.org/schema/tx 
         http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"> 
    <tx:annotation-driven /> 
    <context:annotation-config /> 

    <bean id="personDao" class="com.testPackage.PersonDaoImpl" /> 

    <bean id="dataSource" 
     class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
     <property name="driverClassName" value="org.hsqldb.jdbcDriver" /> 
     <property name="url" value="jdbc:hsqldb:hsql://localhost/testDB" /> 
     <property name="username" value="sa" /> 
     <property name="password" value="" /> 
     <property name="initialSize" value="5" /> 
     <property name="maxActive" value="10" /> 
    </bean> 

</beans> 

我認爲司機可能是問題，但應該採取什麼，而不是爲HSQL-DB 2.3.2？

我真的很感謝你的回答！

Answer 1

LocalContainerEntityManagerFactoryBean應區別（它不是一個DataSource）使用，例如：

<beans> 
    <bean id="myEmf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
     <property name="dataSource" ref="someDataSource"/> 
... 
    </bean> 
</beans> 

<bean id="someDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
    <property name="driverClassName" value="org.hsqldb.jdbcDriver" /> 
    <property name="url" value="jdbc:hsqldb:hsql://localhost/testDB" /> 
    <property name="username" value="sa" /> 
    <property name="password" value="" /> 
</bean> 

，但如果你有一個 「INITIALSIZE」 在那裏，它可能應該是一個池：

<bean id="someDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> 
    <property name="driverClassName" value="org.hsqldb.jdbcDriver" /> 
    <property name="url" value="jdbc:hsqldb:hsql://localhost/testDB" /> 
    <property name="username" value="sa" /> 
    <property name="password" value="" /> 
    <property name="initialSize" value="5" /> 
    <property name="maxActive" value="10" /> 
</bean> 

及以下內容pom.xml：

<dependency> 
    <groupId>commons-dbcp</groupId> 
    <artifactId>commons-dbcp</artifactId> 
    <version>1.4</version> 
</dependency>