PooledConnection.connectUsingDriver 未加载 JDBC 驱动程序，因为 driverClassName 属性 为空
PooledConnection.connectUsingDriver Not loading a JDBC driver as driverClassName property is null
我的 Web 项目是使用 spring 4.2.5.RELEASE 和 Hibernate 4.3.5.Final 开发的。我的项目 POM 也有以下依赖性
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.3</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
我的数据库上下文 XML 的 - 1
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">
<context:component-scan base-package="com.test" />
<context:annotation-config />
<tx:annotation-driven transaction-manager="aTransaction" />
<bean id="aDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
</bean>
<bean id="aSessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="aDataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
</props>
</property>
<property name="packagesToScan" value="com.test.entity" />
</bean>
<bean id="aTransaction"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory">
<ref bean="aSessionFactory" />
</property>
</bean>
</beans>
XML-2
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">
<context:component-scan base-package="com.test2" />
<context:annotation-config />
<tx:annotation-driven transaction-manager="bTransaction" />
<bean id="bDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.user}" />
<property name="password" value="${jdbc.pass}" />
</bean>
<bean id="bSessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="bDataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
</props>
</property>
<property name="packagesToScan" value="com.test.entity2" />
</bean>
<bean id="bTransaction"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory">
<ref bean="bSessionFactory" />
</property>
</bean>
</beans>
属性 文件
# 2
jdbc.driverClassName=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:\url
jdbc.user=test
jdbc.pass=test
# 1
jdbc.1url=jdbc:oracle:thin:@\url2
1.username=test
2.password=test
# hibernate.X
hibernate.dialect=org.hibernate.dialect.OracleDialect
hibernate.show_sql=false
hibernate.hbm2ddl.auto=create-drop
package.to.scan=com.test.entity
我的应用程序工作正常，所有其他服务都能够从数据库中获取数据。但是在服务器即 TCserver 中部署时，它会在服务器启动期间抛出以下警告并写入日志 file.Its 而不会在本地 tomcat 中抛出此错误。应用程序也运行良好，但需要修复此警告。
org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver Not loading a JDBC driver as driverClassName property is null
org.apache.tomcat.jdbc.pool.ConnectionPool.init Unable to create initial connections of pool.
28-Jun-2018 20:22:51.243 SEVERE [localhost-startStop-1] org.apache.tomcat.jdbc.pool.ConnectionPool.init Unable to create initial connections of pool.
java.sql.SQLException: The url cannot be null
at java.sql.DriverManager.getConnection(DriverManager.java:649)
at java.sql.DriverManager.getConnection(DriverManager.java:208)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:308)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:203)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:735)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:667)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:482)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:154)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:118)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:107)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:560)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:244)
at org.apache.naming.factory.FactoryBase.getObjectInstance(FactoryBase.java:94)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
at org.apache.naming.NamingContext.lookup(NamingContext.java:839)
at org.apache.naming.NamingContext.lookup(NamingContext.java:159)
at org.apache.naming.NamingContext.lookup(NamingContext.java:827)
at org.apache.naming.NamingContext.lookup(NamingContext.java:173)
at org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1091)
at org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:661)
at org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:249)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5105)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:952)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1823)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
28-Jun-2018 20:22:51.243 WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference
java.sql.SQLException: The url cannot be null
at java.sql.DriverManager.getConnection(DriverManager.java:649)
at java.sql.DriverManager.getConnection(DriverManager.java:208)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:308)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:203)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:735)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:667)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:482)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:154)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:118)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:107)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:560)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:244)
at org.apache.naming.factory.FactoryBase.getObjectInstance(FactoryBase.java:94)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
at org.apache.naming.NamingContext.lookup(NamingContext.java:839)
at org.apache.naming.NamingContext.lookup(NamingContext.java:159)
at org.apache.naming.NamingContext.lookup(NamingContext.java:827)
at org.apache.naming.NamingContext.lookup(NamingContext.java:173)
at org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1091)
at org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:661)
at org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:249)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5105)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:952)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1823)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
我终于想通了。
问题出在 web.xml 中 JNDI 资源的资源引用条目。此问题在本地 Tomcat 中已被抑制，并且在本地没有抛出任何警告，但在服务器中它抛出连接空警告。我删除了下面不需要的代码片段，错误消失了。
<resource-ref>
<description>Oracle Spring JNDI Datasource</description>
<res-ref-name>jdbc/test</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
我的 Web 项目是使用 spring 4.2.5.RELEASE 和 Hibernate 4.3.5.Final 开发的。我的项目 POM 也有以下依赖性
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.3</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
我的数据库上下文 XML 的 - 1
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">
<context:component-scan base-package="com.test" />
<context:annotation-config />
<tx:annotation-driven transaction-manager="aTransaction" />
<bean id="aDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
</bean>
<bean id="aSessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="aDataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
</props>
</property>
<property name="packagesToScan" value="com.test.entity" />
</bean>
<bean id="aTransaction"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory">
<ref bean="aSessionFactory" />
</property>
</bean>
</beans>
XML-2
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">
<context:component-scan base-package="com.test2" />
<context:annotation-config />
<tx:annotation-driven transaction-manager="bTransaction" />
<bean id="bDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.user}" />
<property name="password" value="${jdbc.pass}" />
</bean>
<bean id="bSessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="bDataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
</props>
</property>
<property name="packagesToScan" value="com.test.entity2" />
</bean>
<bean id="bTransaction"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory">
<ref bean="bSessionFactory" />
</property>
</bean>
</beans>
属性 文件
# 2
jdbc.driverClassName=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:\url
jdbc.user=test
jdbc.pass=test
# 1
jdbc.1url=jdbc:oracle:thin:@\url2
1.username=test
2.password=test
# hibernate.X
hibernate.dialect=org.hibernate.dialect.OracleDialect
hibernate.show_sql=false
hibernate.hbm2ddl.auto=create-drop
package.to.scan=com.test.entity
我的应用程序工作正常，所有其他服务都能够从数据库中获取数据。但是在服务器即 TCserver 中部署时，它会在服务器启动期间抛出以下警告并写入日志 file.Its 而不会在本地 tomcat 中抛出此错误。应用程序也运行良好，但需要修复此警告。
org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver Not loading a JDBC driver as driverClassName property is null
org.apache.tomcat.jdbc.pool.ConnectionPool.init Unable to create initial connections of pool.
28-Jun-2018 20:22:51.243 SEVERE [localhost-startStop-1] org.apache.tomcat.jdbc.pool.ConnectionPool.init Unable to create initial connections of pool.
java.sql.SQLException: The url cannot be null
at java.sql.DriverManager.getConnection(DriverManager.java:649)
at java.sql.DriverManager.getConnection(DriverManager.java:208)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:308)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:203)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:735)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:667)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:482)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:154)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:118)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:107)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:560)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:244)
at org.apache.naming.factory.FactoryBase.getObjectInstance(FactoryBase.java:94)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
at org.apache.naming.NamingContext.lookup(NamingContext.java:839)
at org.apache.naming.NamingContext.lookup(NamingContext.java:159)
at org.apache.naming.NamingContext.lookup(NamingContext.java:827)
at org.apache.naming.NamingContext.lookup(NamingContext.java:173)
at org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1091)
at org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:661)
at org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:249)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5105)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:952)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1823)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
28-Jun-2018 20:22:51.243 WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference
java.sql.SQLException: The url cannot be null
at java.sql.DriverManager.getConnection(DriverManager.java:649)
at java.sql.DriverManager.getConnection(DriverManager.java:208)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:308)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:203)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:735)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:667)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:482)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:154)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:118)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:107)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:560)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:244)
at org.apache.naming.factory.FactoryBase.getObjectInstance(FactoryBase.java:94)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
at org.apache.naming.NamingContext.lookup(NamingContext.java:839)
at org.apache.naming.NamingContext.lookup(NamingContext.java:159)
at org.apache.naming.NamingContext.lookup(NamingContext.java:827)
at org.apache.naming.NamingContext.lookup(NamingContext.java:173)
at org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1091)
at org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:661)
at org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:249)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5105)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:952)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1823)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
我终于想通了。 问题出在 web.xml 中 JNDI 资源的资源引用条目。此问题在本地 Tomcat 中已被抑制，并且在本地没有抛出任何警告，但在服务器中它抛出连接空警告。我删除了下面不需要的代码片段，错误消失了。
<resource-ref>
<description>Oracle Spring JNDI Datasource</description>
<res-ref-name>jdbc/test</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>