自动布线依赖项的注入失败;嵌套的例外是org.springframework.beans.factory.BeanCreationException：

Question

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'contactController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private net.viralpatel.contact.service.ContactService net.viralpatel.contact.controller.ContactController.contactService; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.apache.commons.dbcp.BasicDataSource] for bean with name 'dataSource' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]; nested exception is java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource 
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1202) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) 
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) 
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) 
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) 
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755) 
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757) 
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480) 
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663) 
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629) 
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677) 
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548) 
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489) 
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) 
    javax.servlet.GenericServlet.init(GenericServlet.java:158) 
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) 
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) 
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) 
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421) 
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1074) 
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) 
    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) 
    java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
    java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) 
    java.lang.Thread.run(Unknown Source) 

为spring-servlet.xml

<bean id="jspViewResolver" 
    class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
    <property name="viewClass" 
     value="org.springframework.web.servlet.view.JstlView" /> 
    <property name="prefix" value="/WEB-INF/jsp/" /> 
    <property name="suffix" value=".jsp" /> 
</bean> 

<bean id="messageSource" 
    class="org.springframework.context.support.ReloadableResourceBundleMessageSource"> 
    <property name="basename" value="classpath:messages" /> 
    <property name="defaultEncoding" value="UTF-8" /> 
</bean> 

<bean id="propertyConfigurer" 
    class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" 
    p:location="/WEB-INF/jdbc.properties" /> 

<bean id="dataSource" 
    class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" 
    p:driverClassName="${jdbc.driverClassName}" 
    p:url="${jdbc.databaseurl}" p:username="${jdbc.username}" 
    p:password="${jdbc.password}" /> 


<bean id="sessionFactory" 
    class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 
    <property name="dataSource" ref="dataSource" /> 
    <property name="configLocation"> 
     <value>classpath:hibernate.cfg.xml</value> 
    </property> 
    <property name="configurationClass"> 
     <value>org.hibernate.cfg.AnnotationConfiguration</value> 
    </property> 
    <property name="hibernateProperties"> 
     <props> 
      <prop key="hibernate.dialect">${jdbc.dialect}</prop> 
      <prop key="hibernate.show_sql">true</prop> 
     </props> 
    </property> 
</bean> 

<tx:annotation-driven /> 
<bean id="transactionManager" 
    class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 
    <property name="sessionFactory" ref="sessionFactory" /> 
</bean> 

请等我知道如何解决这个错误?????

这是我jdbc.properties文件中的WEB-INF文件夹

jdbc.driverClassName= com.mysql.jdbc.Driver 

jdbc.dialect=org.hibernate.dialect.MySQLDialect 

jdbc.databaseurl=jdbc:mysql://localhost:3306/SpringHibernate 

jdbc.username=vishantmahajan 
jdbc.password=abcdefgh 

这是我的pom.xml的依赖声明： -

<groupId>commons-dbcp</groupId> 
    <artifactId>commons-dbcp</artifactId> 
    <version>20030825.184428</version> 

</dependency> 

<dependency> 
    <groupId>commons-pool</groupId> 
    <artifactId>commons-pool</artifactId> 
    <version>20030825.183949</version> 
</dependency> 

Answer 1

的错误是，你是由于堆栈跟踪中存在以下异常，因此在项目中缺少相关性Cannot find class [org.apache.commons.dbcp.BasicDataSource]

你只需要这个依赖添加到您的Maven pom.xml，只是确保你所添加的项目正确的版本，例如：

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

你可以找到Common Database Connection Pooling名单Maven的here

Answer 2

错误清楚地说Cannot find class [org.apache.commons.dbcp.BasicDataSource]因此您需要为BasicDataSource添加依赖项。

就可以得到Maven的依赖here 或 添加下面的依赖在pom.xml中

<dependency> 
    <groupId>commons-dbcp</groupId> 
    <artifactId>commons-dbcp</artifactId> 
    <version>1.2.2</version> 
</dependency>