Question

我正在尝试将我的应用配置为使用C3P0数据源（我无法使用容器提供的数据源）。

但是，当我的应用程序启动时，发生了异常：

用户必须提供JDBC连接

Bellow是我的配置文件：

弹簧-config.xml中：

<bean id="pum" class="org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
    <property name="persistenceXmlLocations">
        <list>
            <value>classpath*:META-INF/persistence.xml</value>
        </list>
    </property>
</bean>

<bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
    destroy-method="close">
    <property name="driverClass" value="oracle.jdbc.driver.OracleDriver" />
    <property name="jdbcUrl" value="jdbc:oracle:thin:@host:1521:db" />
    <property name="user" value="dbuser" />
    <property name="password" value="passwd" />
    <property name="minPoolSize" value="5" />
    <property name="maxPoolSize" value="10" />
    <property name="maxStatements" value="0" />
</bean>

<bean id="entityManagerFactory"
    class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="persistenceUnitManager" ref="pum" />
    <property name="dataSource" ref="pooledDataSource" />
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>
    </property>
</bean>

<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    <property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>

<tx:annotation-driven transaction-manager="transactionManager" />

的persistence.xml：

<persistence version="1.0"
xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">

<persistence-unit name="AppPU" transaction-type="RESOURCE_LOCAL">

    <properties>

        <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect" />            
        <property name="hibernate.show_sql" value="false" />
        <property name="hibernate.jdbc.batch_size" value="50" />

        <property name="hibernate.archive.autodetection" value="class"/>    
        <property name="hibernate.cache.region.factory_class" value="net.sf.ehcache.hibernate.EhCacheRegionFactory" />
        <property name="hibernate.cache.use_query_cache" value="true" />
        <property name="hibernate.cache.use_second_level_cache" value="true" />

    </properties>

</persistence-unit> 

</persistence>

例外：

java.lang.UnsupportedOperationException: The user must supply a JDBC connection
at org.hibernate.connection.UserSuppliedConnectionProvider.getConnection(UserSuppliedConnectionProvider.java:54)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1573)
at org.hibernate.loader.Loader.doQuery(Loader.java:696)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
at org.hibernate.loader.Loader.doList(Loader.java:2228)
at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2157)
at org.hibernate.loader.Loader.list(Loader.java:2117)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:401)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:361)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1148)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:67)
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.springframework.orm.jpa.SharedEntityManagerCreator$DeferredQueryInvocationHandler.invoke(SharedEntityManagerCreator.java:310)
at $Proxy286.getResultList(Unknown Source)
at com.embraer.core.jpa.DaoSupport.execQueryIndexedParameters(DaoSupport.java:327)
at com.embraer.core.jpa.DaoSupport.findByNamedQuery(DaoSupport.java:280)
at com.embraer.core.jpa.DaoSupport.findAll(DaoSupport.java:132)
at br.com.embraer.aheadpro.dao.imp.ConfigDAOImpl.findAll(ConfigDAOImpl.java:41)
at br.com.embraer.aheadpro.dao.ConfigRepoDAO.getAll(ConfigRepoDAO.java:35)
at br.com.embraer.aheadpro.service.ConfigService.refresh(ConfigService.java:27)
at br.com.embraer.aheadpro.service.ConfigService.getConfig(ConfigService.java:35)
at br.com.embraer.aheadpro.service.EmailService.init(EmailService.java:81)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:340)
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:293)
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:130)
... 91 more

谢谢大家！

Answer 1

也许这可能会有所帮助：http://thejavablog.wordpress.com/2010/11/26/java-lang-unsupportedoperationexception-the-user-must-supply-a-jdbc-connection/，它基本上说persistence.xml（<provider>org.hibernate.ejb.HibernatePersistence</provider>或者hibernate.connection.provider_class - 属性？）中缺少某些东西，而Hibernate的ConnectionProviderFactory选择创建一个UserSuppliedConnectionProvider，其getConnection定义如下：

public Connection getConnection() {
    throw new UnsupportedOperationException("The user must supply a JDBC connection");
}

我还将其与我们自己的Hibernate / JPA设置进行了比较，这些设置与C3PO配合得很好，我发现的唯一区别是我们将更多属性传递给c3p0.ComboPooledDataSource，并将一些属性传递给org.springframework.orm在Spring配置xml中定义EntityManagerFactory时的.jpa.vendor.HibernateJpaVendorAdapter：

<property name="jpaVendorAdapter">          
    <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
        <property name="showSql" value="false" />
        <property name="generateDdl" value="false" />
        <property name="databasePlatform" value="${jdbc.dialectClass}" />
    </bean>
</property>

但我怀疑可能是这样。我们的persistence.xml中没有定义属性（根本没有）。

使用Spring，Hibernate，JPA和C3P0的数据库连接异常

1 个答案: