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问题:
log4j:WARN No appenders could be found for logger (org.springframework.context.support.FileSystemXmlApplicationContext).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in file [D:\myComApp\workspace\mySpringTran\src\applicationContext.xml]: Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/pool/impl/GenericObjectPool
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/pool/impl/GenericObjectPool
 at java.lang.Class.getDeclaredConstructors0(Native Method)
 at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
 at java.lang.Class.getConstructor0(Unknown Source)
 at java.lang.Class.getDeclaredConstructor(Unknown Source)
 at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:54)
 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:759)
 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:724)
 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:387)
 at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
 at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156)
 at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
 at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
 at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:287)
 at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:352)
 at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:93)
 at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:77)
 at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:67)
 at com.lusm.hiberate.vo.TransactionTest.main(TransactionTest.java:20)


原因:
找不到 Caused by: java.lang.NoClassDefFoundError: org/apache/commons/pool/impl/GenericObjectPool
就Apache所提供的基本对象池。

解决:
到这里http://commons.apache.org/downloads/download_pool.cgi下载包,然后,把里面的commons-pool-x.jar复制到myEclipse的Referenced Libraries下.



地震让大伙知道:居安思危,才是生存之道。
posted on 2007-08-26 15:01 小寻 阅读(7080) 评论(2)  编辑  收藏 所属分类: 编程问题

FeedBack:
# re: java.lang.NoClassDefFoundError: org/apache/commons/pool/impl/GenericObjectPool[未登录] 2007-12-18 22:08 song
你好 我出现了这个错误 为什么按你说的做了之后
程序一运行就出现 javaw.exe应用程序错误 程序出现异常呢
谢拉~~  回复  更多评论
  
# re: java.lang.NoClassDefFoundError: org/apache/commons/pool/impl/GenericObjectPool 2007-12-19 09:37 幻想~@@~
javaw应用程序错误
是你的java vm 问题
检查一下你的 Java VM的安装目录/bin下是否有javaw.exe
如果有
再检查一下你的IDE和你系统所装的Java VM是否是
同一个  回复  更多评论
  

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