在类路径资源[jpaContext.xml]中定义名称为'entityManagerFactory'的Bean时创建错误

本文介绍了在类路径资源[jpaContext.xml]中定义名称为'entityManagerFactory'的Bean时创建错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我在春天遇到一个问题，我是一个新手，在Hibernate，JPA和Maven中使用这个框架，我正在关注一个关于pluralsight的教程，但是当在服务器中启动应用程序时，我有这个错误信息。

Grave：上下文初始化失败 org.springframework.beans.factory.BeanCreationException：在类中定义名称为'entityManagerFactory'的bean时创建错误路径资源[jpaContext.xml]：设置bean属性'dataSource'时无法解析对bean'dataSource'的引用;嵌套的异常是org.springframework.beans.factory.BeanCreationException：在类路径资源[jpaContext.xml]中定义名称为'dataSource'的bean时出错：设置属性值时出错;嵌套异常是org.springframework.beans.PropertyBatchUpdateException;嵌套PropertyAccessExceptions（1）： PropertyAccessException 1：org.springframework.beans.MethodInvocationException：属性'driverClassName'引发异常;嵌套异常是java.lang.IllegalStateException：在org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference（BeanDefinitionValueResolver.java:329）$ B $无法加载JDBC驱动类[com.postgresql.driver] b在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues（AbstractAutowireCapableBeanFactory.java:1391）$ b $ org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary（BeanDefinitionValueResolver.java:107） at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:522）$ b $ org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.popva（） b在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:461） at或g.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）在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）在org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext（ContextLoader.java:383）在org.springframewo rk.web.context.ContextLoader.initWebApplicationContext（ContextLoader.java:283）处org.apache.catalina org.springframework.web.context.ContextLoaderListener.contextInitialized（ContextLoaderListener.java:112）。 core.StandardContext.listenerStart（StandardContext.java:4961）在org.apache.catalina.core.StandardContext.startInternal（StandardContext.java:5455）在org.apache.catalina.util.LifecycleBase。开始（LifecycleBase.java:150）在org.apache.catalina.core.ContainerBase $ StartChild.call（ContainerBase.java:1559）在org.apache.catalina.core.ContainerBase $ StartChild。调用（ContainerBase.java:1549）在java.util.concurrent.FutureTask.run（FutureTask.java:262）在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1145） 在java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:615）$ b $在java.lang.Thread.run（Thread.java:744）导致：org .springframework.beans.factor y.BeanCreationException：在类路径资源[jpaContext.xml]中定义名称为'dataSource'的bean时出错：设置属性值时出错;嵌套异常是org.springframework.beans.PropertyBatchUpdateException;嵌套PropertyAccessExceptions（1）： PropertyAccessException 1：org.springframework.beans.MethodInvocationException：属性'driverClassName'引发异常;嵌套异常是java.lang.IllegalStateException：无法在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues（AbstractAutowireCapableBeanFactory.java:1427）中加载JDBC驱动程序类[com.postgresql.driver] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:522）$ b $ org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.popva（） b 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.factor在org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:194）上在org.springframework.beans处。 factory.support.BeanDefinitionValueResolver.resolveReference（BeanDefinitionValueResolver.java:323） ... 24 more 导致：org.springframework.beans.PropertyBatchUpdateException;嵌套PropertyAccessExceptions（1）： PropertyAccessException 1：org.springframework.beans.MethodInvocationException：属性'driverClassName'引发异常;嵌套异常是java.lang.IllegalStateException：无法在org上加载org.springframework.beans.AbstractPropertyAccessor.setPropertyValues（AbstractPropertyAccessor.java:101）处的JDBC驱动程序类[com.postgresql.driver] 。 springframework.beans.AbstractPropertyAccessor.setPropertyValues（AbstractPropertyAccessor.java:57） at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues（AbstractAutowireCapableBeanFactory.java:1424） ... 32 more févr。 11，2014 2:53:35 PM org.apache.catalina.core.StandardContext listenerStart Grave：Exception lors de l'envoi de l'évènementcontexteinitialisé（context initialized）àl'instance de classe d'écoute （listener）org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanCreationException：在类路径资源[jpaContext.xml]中定义的名称为'entityManagerFactory'的bean创建时出错：无法解析bean的引用'dataSource'，同时设置bean属性'dataSource';嵌套的异常是org.springframework.beans.factory.BeanCreationException：在类路径资源[jpaContext.xml]中定义名称为'dataSource'的bean时出错：设置属性值时出错;嵌套异常是org.springframework.beans.PropertyBatchUpdateException;嵌套PropertyAccessExceptions（1）： PropertyAccessException 1：org.springframework.beans.MethodInvocationException：属性'driverClassName'引发异常;嵌套异常是java.lang.IllegalStateException：在org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference（BeanDefinitionValueResolver.java:329）$ B $无法加载JDBC驱动类[com.postgresql.driver] b在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues（AbstractAutowireCapableBeanFactory.java:1391）$ b $ org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary（BeanDefinitionValueResolver.java:107） at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:522）$ b $ org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.popva（） b在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:461） at或g.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）在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）在org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext（ContextLoader.java:383）在org.springframewo rk.web.context.ContextLoader.initWebApplicationContext（ContextLoader.java:283）处org.apache.catalina org.springframework.web.context.ContextLoaderListener.contextInitialized（ContextLoaderListener.java:112）。 core.StandardContext.listenerStart（StandardContext.java:4961）在org.apache.catalina.core.StandardContext.startInternal（StandardContext.java:5455）在org.apache.catalina.util.LifecycleBase。开始（LifecycleBase.java:150）在org.apache.catalina.core.ContainerBase $ StartChild.call（ContainerBase.java:1559）在org.apache.catalina.core.ContainerBase $ StartChild。调用（ContainerBase.java:1549）在java.util.concurrent.FutureTask.run（FutureTask.java:262）在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1145） 在java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:615）$ b $在java.lang.Thread.run（Thread.java:744）导致：org .springframework.beans.factor y.BeanCreationException：在类路径资源[jpaContext.xml]中定义名称为'dataSource'的bean时出错：设置属性值时出错;嵌套异常是org.springframework.beans.PropertyBatchUpdateException;嵌套PropertyAccessExceptions（1）： PropertyAccessException 1：org.springframework.beans.MethodInvocationException：属性'driverClassName'引发异常;嵌套异常是java.lang.IllegalStateException：无法在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues（AbstractAutowireCapableBeanFactory.java:1427）中加载JDBC驱动程序类[com.postgresql.driver] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:522）$ b $ org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.popva（） b 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.factor在org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:194）上在org.springframework.beans处。 factory.support.BeanDefinitionValueResolver.resolveReference（BeanDefinitionValueResolver.java:323） ... 24 more 导致：org.springframework.beans.PropertyBatchUpdateException;嵌套PropertyAccessExceptions（1）： PropertyAccessException 1：org.springframework.beans.MethodInvocationException：属性'driverClassName'引发异常;嵌套异常是java.lang.IllegalStateException：无法在org上加载org.springframework.beans.AbstractPropertyAccessor.setPropertyValues（AbstractPropertyAccessor.java:101）处的JDBC驱动程序类[com.postgresql.driver] 。 springframework.beans.AbstractPropertyAccessor.setPropertyValues（AbstractPropertyAccessor.java:57） at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues（AbstractAutowireCapableBeanFactory.java:1424） ... 32 more

这是我的jpaContext.xml

<？xml version =1.0encoding =UTF-8？> < beans xmlns =www.springframework/schema/beans xmlns：xsi =www.w3/2001/XMLSchema-instance xmlns：tx =www.springframework/schema/tx xmlns：context =www.springframework/schema/context xsi ：schemaLocation =www.springframework/schema/beans www.springframework/schema/beans/spring-beans.xsd www.springframework/ schema / context www.springframework/schema/context/spring-context-3.2.xsd www.springframework/schema/tx www.springframework /schema/tx/spring-tx-3.2.xsd\"> < context：annotation-config /> < bean class =org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor/> < bean id =entityManagerFactoryclass =org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean> < property name =persistenceUnitNamevalue =punit/> < property name =dataSourceref =dataSource/> < property name =jpaVendorAdapter> < bean class =org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter> < property name =showSqlvalue =true/> < / bean> < / property> < property name =jpaPropertyMap> < map> < entry key =hibernate.dialectvalue =org.hibernate.dialect.DB2Dialect/> < entry key =hibernate.hbm2ddl.autovalue =none/> < entry key =hibernate.format_sqlvalue =true/> < / map> < / property> < / bean> < bean id =transactionManagerclass =org.springframework.orm.jpa.JpaTransactionManager> < property name =entityManagerFactoryref =entityManagerFactory/> < / bean> < tx：注解驱动的事务管理器=transactionManager/> < bean id =dataSourceclass =org.springframework.jdbc.datasource.DriverManagerDataSource> < property name =driverClassNamevalue =com.postgresql.driver/> < property name =urlvalue =jdbc：postgres：// localhost：5432 / fitnessTracker？autoReconnect = true/> < property name =usernamevalue =postgres/> < property name =passwordvalue =admin/> < / bean> < / beans>

这是我的web.xml

<？xml version =1.0encoding =UTF-8？> < web-app version =2.5xmlns =java.sun/xml/ns/javaee xmlns：xsi =http：//www.w3。 org / 2001 / XMLSchema-instance xsi：schemaLocation =java.sun/xml/ns/javaee java.sun/xml/ns/javaee/web- app_2_5.xsd> < context-param> < param-name> contextConfigLocation< / param-name> < param-value> classpath：/jpaContext.xml< / param-value> < / context-param> < listener> < listener-class> org.springframework.web.context.ContextLoaderListner< / listener-class> < / listener> < servlet> < servlet-name> fitTrackerServlet< / servlet-name> < servlet-class> org.springframework.web.servlet.DispatcherServlet< / servlet-class> < init-param> < param-name> contextConfigLocation< / param-name> < param-value> /WEB-INF/config/servlet-config.xml，/WEB-INF/config/jpaContext.xml</param-value> < / init-param> < / servlet> < servlet-mapping> < servlet-name> fitTrackerServlet< / servlet-name> < url-pattern> *。html< / url-pattern> < / servlet-mapping> < servlet-mapping> < servlet-name> fitTrackerServlet< / servlet-name> < url-pattern> / pdfs / **< / url-pattern> < / servlet-mapping> < servlet-mapping> < servlet-name> fitTrackerServlet< / servlet-name> < url-pattern> / images / **< / url-pattern> < / servlet-mapping> < servlet-mapping> < servlet-name> fitTrackerServlet< / servlet-name> < url-pattern> *。json< / url-pattern> < / servlet-mapping> < display-name>原型创建的Web应用程序< / display-name> < / web-app>

谢谢

解决方案

java.lang.IllegalStateException：无法加载JDBC驱动程序类[com .postgresql.driver]

没有类 com.postgresql.driver 有一个 org.postgresql.Driver 类。相应地更改您的配置。

I am having a problem with spring , I am a newbie using this framework with Hibernate , JPA and Maven , I am following a tutorial on pluralsight but when launching the app in the server I have this error message.

Grave: Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [jpaContext.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [jpaContext.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 [com.postgresql.driver] at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1391) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1132) 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$1.getObject(AbstractBeanFactory.java:295) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1117) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:922) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:383) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [jpaContext.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 [com.postgresql.driver] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1427) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1132) 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.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323) ... 24 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 [com.postgresql.driver] at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:101) at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:57) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1424) ... 32 more févr. 11, 2014 2:53:35 PM org.apache.catalina.core.StandardContext listenerStart Grave: Exception lors de l'envoi de l'évènement contexte initialisé (context initialized) à l'instance de classe d'écoute (listener) org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [jpaContext.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [jpaContext.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 [com.postgresql.driver] at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1391) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1132) 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$1.getObject(AbstractBeanFactory.java:295) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1117) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:922) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:383) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [jpaContext.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 [com.postgresql.driver] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1427) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1132) 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.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323) ... 24 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 [com.postgresql.driver] at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:101) at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:57) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1424) ... 32 more

this is my "jpaContext.xml"

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="www.springframework/schema/beans" xmlns:xsi="www.w3/2001/XMLSchema-instance" xmlns:tx="www.springframework/schema/tx" xmlns:context="www.springframework/schema/context" xsi:schemaLocation="www.springframework/schema/beans www.springframework/schema/beans/spring-beans.xsd www.springframework/schema/context www.springframework/schema/context/spring-context-3.2.xsd www.springframework/schema/tx www.springframework/schema/tx/spring-tx-3.2.xsd"> <context:annotation-config /> <bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" /> <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="persistenceUnitName" value="punit"/> <property name="dataSource" ref="dataSource" /> <property name="jpaVendorAdapter"> <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> <property name="showSql" value="true" /> </bean> </property> <property name="jpaPropertyMap"> <map> <entry key="hibernate.dialect" value="org.hibernate.dialect.DB2Dialect" /> <entry key="hibernate.hbm2ddl.auto" value="none" /> <entry key="hibernate.format_sql" value="true" /> </map> </property> </bean> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager" > <property name="entityManagerFactory" ref="entityManagerFactory" /> </bean> <tx:annotation-driven transaction-manager="transactionManager"/> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" > <property name ="driverClassName" value="com.postgresql.driver" /> <property name ="url" value="jdbc:postgres://localhost:5432/fitnessTracker?autoReconnect=true" /> <property name="username" value="postgres" /> <property name="password" value="admin" /> </bean> </beans>

and this is my "web.xml"

<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="java.sun/xml/ns/javaee" xmlns:xsi="www.w3/2001/XMLSchema-instance" xsi:schemaLocation="java.sun/xml/ns/javaee java.sun/xml/ns/javaee/web-app_2_5.xsd"> <context-param> <param-name>contextConfigLocation </param-name> <param-value>classpath:/jpaContext.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListner</listener-class> </listener> <servlet> <servlet-name>fitTrackerServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/config/servlet-config.xml, /WEB-INF/config/jpaContext.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>fitTrackerServlet</servlet-name> <url-pattern>*.html</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>fitTrackerServlet</servlet-name> <url-pattern>/pdfs/**</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>fitTrackerServlet</servlet-name> <url-pattern>/images/**</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>fitTrackerServlet</servlet-name> <url-pattern>*.json</url-pattern> </servlet-mapping> <display-name>Archetype Created Web Application</display-name> </web-app>

Thanks

解决方案

The stacktrace gives you the answer.

java.lang.IllegalStateException: Could not load JDBC driver class [com.postgresql.driver]

There is no class com.postgresql.driver there is a org.postgresql.Driver class. Change your configuration accordingly.