Question

我从昨天开始就遇到了这个错误，即使我已经尝试了所有我想到的东西，或者我发现在互联网上搜索，我也无法解决。上下文：java 6，Spring 3.1.4，camel 2.11.1，Oracle驱动程序10.2.0.2。

我在驼峰上下文文件中有这个bean：

<bean id="myDataSource"  class="**org.springframework.jdbc.datasource.DriverManagerDataSource**">
  <property name="driverClassName" value="**oracle.jdbc.driver.OracleDriver"**/>
  <property name="url" value="jdbc:...."/>
  <property name="username" value="userhere"/>
  <property name="password" value="passwordhere"/>
</bean>

我也尝试过这个类的bean：class =“ org.apache.commons.dbcp.BasicDataSource ” 还有一个使用这个bean的bean。我在POM中有这个（顺便说一句，我从另一个指向同一个数据库的项目中引入了这个依赖项，所以它是正确的版本）：

<dependency>
  <groupId>com.oracle</groupId>
  <artifactId>ojdbc14</artifactId>
  <version>10.2.0.2</version> 
  <scope>provided</scope>
</dependency>

我也有这个，因为我尝试过它的不同之处：

<dependency>
  <groupId>org.apache.camel</groupId>
  <artifactId>camel-jdbc</artifactId>
  <version>2.11.1</version>
</dependency>   
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-jdbc</artifactId>
  <version>3.1.4.RELEASE</version>
</dependency>
<dependency>
  <groupId>commons-dbcp</groupId>
  <artifactId>commons-dbcp</artifactId>
  <version>1.4</version>
</dependency>

连接数据（网址，用户和密码），已经过验证，并且对于我尝试连接的每个环境都是正确的。
我可以在Maven依赖项中看到ojdbc14 jar，在启用调试输出的情况下执行“maven run”时也会看到它： [DEBUG]添加项目依赖项工件：ojdbc14到classpath
我可以在jar中看到 oracle.jdbc.driver.OracleDriver 这个类。

然而，我每次都会收到这些错误：

使用class =“org.apache.commons.dbcp.BasicDataSource”作为dataSource类时：类= “org.apache.commons.dbcp.BasicDataSource”

        [29 Nov 2013 13:39:03,257][e) thread #0 - timer://kickoff] DefaultErrorHandler            ERROR Failed delivery for (MessageId: ID-vpar-alcantara-51044-1385743141288-0-1 on ExchangeId: ID-vpar-alcantara-51044-1385743141288-0-2). Exhausted after delivery attempt: 1 caught: org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'oracle.jdbc.driver.OracleDriver'
        org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'oracle.jdbc.driver.OracleDriver'
            at org.apache.commons.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1429)
            at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1371)
            at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
            at org.apache.camel.component.jdbc.JdbcProducer.processingSqlBySettingAutoCommit(JdbcProducer.java:76)
            at org.apache.camel.component.jdbc.JdbcProducer.process(JdbcProducer.java:63)
            at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.SendProcessor$2.doInAsyncProducer(SendProcessor.java:122)
            at org.apache.camel.impl.ProducerCache.doInAsyncProducer(ProducerCache.java:298)
            at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:117)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.processor.interceptor.BacklogTracerInterceptor.process(BacklogTracerInterceptor.java:84)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:91)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:391)
            at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:273)
            at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.processor.interceptor.DefaultChannel.process(DefaultChannel.java:335)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.Pipeline.process(Pipeline.java:117)
            at org.apache.camel.processor.Pipeline.process(Pipeline.java:80)
            at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.processor.UnitOfWorkProcessor.processAsync(UnitOfWorkProcessor.java:150)
            at org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:117)
            at org.apache.camel.processor.RouteInflightRepositoryProcessor.processNext(RouteInflightRepositoryProcessor.java:48)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:99)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:86)
            at org.apache.camel.component.timer.TimerConsumer.sendTimerExchange(TimerConsumer.java:135)
            at org.apache.camel.component.timer.TimerConsumer$1.run(TimerConsumer.java:63)
            at java.util.TimerThread.mainLoop(Timer.java:555)
            at java.util.TimerThread.run(Timer.java:505)
        Caused by: java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
            at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
            at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
            at java.security.AccessController.doPrivileged(Native Method)
            at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
            at org.apache.commons.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1420)
            ... 46 more
        [29 Nov 2013 13:39:03,265][e) thread #0 - timer://kickoff] TimerConsumer                  WARN  Error processing exchange. Exchange[Message: select vendor_style from supplier_ingest_style where  bluefly_product_color is not null]. Caused by: [org.apache.commons.dbcp.SQLNestedException - Cannot load JDBC driver class 'oracle.jdbc.driver.OracleDriver']
        org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'oracle.jdbc.driver.OracleDriver'
            at org.apache.commons.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1429)
            at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1371)
            at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
            at org.apache.camel.component.jdbc.JdbcProducer.processingSqlBySettingAutoCommit(JdbcProducer.java:76)
            at org.apache.camel.component.jdbc.JdbcProducer.process(JdbcProducer.java:63)
            at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.SendProcessor$2.doInAsyncProducer(SendProcessor.java:122)
            at org.apache.camel.impl.ProducerCache.doInAsyncProducer(ProducerCache.java:298)
            at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:117)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.processor.interceptor.BacklogTracerInterceptor.process(BacklogTracerInterceptor.java:84)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:91)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:391)
            at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:273)
            at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.processor.interceptor.DefaultChannel.process(DefaultChannel.java:335)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.Pipeline.process(Pipeline.java:117)
            at org.apache.camel.processor.Pipeline.process(Pipeline.java:80)
            at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.processor.UnitOfWorkProcessor.processAsync(UnitOfWorkProcessor.java:150)
            at org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:117)
            at org.apache.camel.processor.RouteInflightRepositoryProcessor.processNext(RouteInflightRepositoryProcessor.java:48)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
            at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
            at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)
            at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:99)
            at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:86)
            at org.apache.camel.component.timer.TimerConsumer.sendTimerExchange(TimerConsumer.java:135)
            at org.apache.camel.component.timer.TimerConsumer$1.run(TimerConsumer.java:63)
            at java.util.TimerThread.mainLoop(Timer.java:555)
            at java.util.TimerThread.run(Timer.java:505)
        Caused by: java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
            at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
            at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
            at java.security.AccessController.doPrivileged(Native Method)
            at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
            at org.apache.commons.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1420)

使用class =“org.springframework.jdbc.datasource.DriverManagerDataSource”时

        java.lang.reflect.InvocationTargetException
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
            at java.lang.reflect.Method.invoke(Method.java:606)
            at org.apache.camel.maven.RunMojo$1.run(RunMojo.java:459)
            at java.lang.Thread.run(Thread.java:744)
        Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myDataSource' defined in file [C:\GITWorkspace\vendorIngestion\target\classes\META-INF\spring\camel-context.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
        PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'driverClassName' threw exception; nested exception is java.lang.IllegalStateException: Could not load JDBC driver class [oracle.jdbc.driver.OracleDriver]
            at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1396)
            at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
            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:294)
            at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
            at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
            at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
            at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607)
            at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:925)
            at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:472)
            at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
            at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
            at org.apache.camel.spring.Main.createDefaultApplicationContext(Main.java:186)
            at org.apache.camel.spring.Main.doStart(Main.java:140)
            at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
            at org.apache.camel.main.MainSupport.run(MainSupport.java:148)
            at org.apache.camel.main.MainSupport.run(MainSupport.java:343)
            at org.apache.camel.spring.Main.main(Main.java:73)
            ... 6 more
        Caused by: org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
        PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'driverClassName' threw exception; nested exception is java.lang.IllegalStateException: Could not load JDBC driver class [oracle.jdbc.driver.OracleDriver]
            at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:102)
            at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:58)
            at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1393)

在这两个消息中，它显然无法加载OracleDriver，尽管我无法确切地看到原因。第一个是ClassNotfoundException，第二个是java.lang.IllegalStateException。

现在我正在使用Eclipse中的maven插件运行，我也试过，以防万一，但是知道在使用Maven运行时不是解决方案，将ojdbc jar添加到eclipse类路径。但没有任何效果。 oracle驱动程序版本对我们的Orcale是正确的，url是正确的，所以用户和密码，我试图指向我有权访问的每个环境db（本地，dev，qa，staging）。没有任何效果。

任何人都知道为什么它无法找到或加载OracleDriver，实际上它正在将jar添加到类路径中？

Answer 1

您是否在应用服务器上运行此应用？如果服务器上没有JDBC驱动程序的类路径，请尝试将范围设置为默认（编译）Oracle驱动程序依赖项，因为它是默认设置，您可以省略范围标记：

<dependency>
 <groupId>com.oracle</groupId>
 <artifactId>ojdbc14</artifactId>
 <version>10.2.0.2</version> 
</dependency>

两个范围之间的差异：

的编译这是默认范围，如果未指定，则使用此范围。编译依赖项在项目的所有类路径中都可用。此外，这些依赖项将传播到依赖项目。

的提供这很像compile，但表示您希望JDK或容器在运行时提供依赖性。例如，在为Java Enterprise Edition构建Web应用程序时，您可以将Servlet API和相关Java EE API的依赖关系设置为提供的范围，因为Web容器提供了这些类。此范围仅在编译和测试类路径中可用，并且不可传递。

Answer 2

我正在使用不同版本的oracle驱动程序（11.X.X.X），但是你可以尝试一下，看看它是否适用于：

<bean id="dataSource" class="oracle.jdbc.pool.OracleDataSource" destroy-method="close" lazy-init="true">
  <property name="dataSourceName" value="ds" />
  <property name="DriverType" value="{your_driver_type}" />
  <property name="user" value="{user}" />
  <property name="password" value="{password}" />
</bean>

我在SQL组件中使用这个配置并且它可以工作，所以我想它对Camel JDBC应该是一样的。

Answer 3

是的，谢谢您的解决方案。在我的情况下写“compile”，然后做** Maven 更新项目工作**

问题：

PropertyAccessException 1： org.springframework.beans.MethodInvocationException：Property 'driverClassName'抛出异常;嵌套异常是 java.lang.IllegalStateException：无法加载JDBC驱动程序类 [org.h2.Driver]

<强>解决方案：我为H2 dependency编写了范围，如下所示，然后右键单击Project-->Maven--> update Project

 <dependency>
   <groupId>com.h2database</groupId>
   <artifactId>h2</artifactId>
   <version>1.4.195</version>
   <scope>compile</scope>
   </dependency>

Maven-Camel-Spring-Oracle：创建bean时出错 - java.lang.IllegalStateException：无法加载JDBC驱动程序类[oracle.jdbc.driver.OracleDriver]

3 个答案: