java.lang.NoClassDefFoundError: org/apache/commons/pool/ObjectPool

Java.lang.NoClassDefFoundError: org/apache/commons/pool/ObjectPool
 at java.lang.Class.getDeclaredConstructors0(Native Method)
 at java.lang.Class.privateGetDeclaredConstructors(Class.java:2532)
 at java.lang.Class.getDeclaredConstructors(Class.java:1901)
 at

org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors

(AutowiredAnnotationBeanPostProcessor.java:231)
 at

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors

(AbstractAutowireCapableBeanFactory.java:1002)
 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance

(AbstractAutowireCapableBeanFactory.java:975)
 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean

(AbstractAutowireCapableBeanFactory.java:487)
 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean

(AbstractAutowireCapableBeanFactory.java:458)
 at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
 at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton

(DefaultSingletonBeanRegistry.java:223)
 at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
 at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
 at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons

(DefaultListableBeanFactory.java:628)
 at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization

(AbstractApplicationContext.java:932)
 at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
 at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext

(AbstractGenericContextLoader.java:120)
 at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext

(AbstractGenericContextLoader.java:60)
 at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading

(AbstractDelegatingSmartContextLoader.java:100)
 at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext

(AbstractDelegatingSmartContextLoader.java:248)
 at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContextInternal

(CacheAwareContextLoaderDelegate.java:64)
 at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext

(CacheAwareContextLoaderDelegate.java:91)
 at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:122)
 at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies

(DependencyInjectionTestExecutionListener.java:109)
 at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance

(DependencyInjectionTestExecutionListener.java:75)
 at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:312)
 at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:211)
 at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall

(SpringJUnit4ClassRunner.java:288)
 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
 at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:284)
 at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
 at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:88)
 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
 at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate

(RunBeforeTestClassCallbacks.java:61)
 at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate

(RunAfterTestClassCallbacks.java:71)
 at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
 at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
 at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.pool.ObjectPool
 at java.NET.URLClassLoader$1.run(URLClassLoader.java:366)
 at java.Net.URLClassLoader$1.run(URLClassLoader.java:355)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
 ... 46 more

 

错误原因：缺少common—pool-core 包

解决办法：利用maven下载jar

<dependency>
 <groupId>commons-pool</groupId>
 <artifactId>commons-pool</artifactId>
 <version>1.6</version>
</dependency>