错误：java.lang.NoClassDefFoundError: commchangev2serIndirector

异常：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [bean-properties.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.mchange.v2.c3p0.ComboPooledDataSource]: No default constructor found; nested exception is java.lang.NoClassDefFoundError: com/mchange/v2/ser/Indirector

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.mchange.v2.c3p0.ComboPooledDataSource]: No default constructor found; nested exception is java.lang.NoClassDefFoundError: com/mchange/v2/ser/Indirector

Caused by: java.lang.NoClassDefFoundError: com/mchange/v2/ser/Indirector

问题原因：缺省mchange-commons-java-0.2.3.4.jar包

解决方法：在工程lib文件下加入mchange-commons-java-0.2.3.4.jar包，并右击鼠标，选择build path---->configure build path即可。