Cannot find class [org.apache.commons.dbcp.BasicDataSource]

雨点打透心脏的1/2处 2022-05-31 02:42 188阅读 0赞

错误：

二月 05, 2018 10:12:40 上午 org.apache.catalina.core.StandardContext listenerStart
    严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
    org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.apache.commons.dbcp.BasicDataSource] for bean with name 'dataSource' defined in class path resource [applicationContext.xml]; nested exception is java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource
    	at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1328)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:622)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:591)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1397)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:968)
    	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:735)
    	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    	at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:434)
    	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
    	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4811)
    	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5251)
    	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
    	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
    	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)
    Caused by: java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource
    	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1305)
    	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1139)
    	at org.springframework.util.ClassUtils.forName(ClassUtils.java:249)
    	at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:395)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1349)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1320)
    	... 19 more

原因：

缺少commons-dbcp.jar、commons-pool.jar包

在pom.xml加入这两个包就行

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