UC知道Spring中查询Java对象出错
来源：百度知道 编辑：UC知道 时间：2024/06/23 12:52:08
log4j:WARN No appenders could be found for logger (org.springframework.core.CollectionFactory).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'litQuery' defined in class path resource [cn/edu/scnu/spring/dao/litInformationDao/beans.xml]: Cannot resolve reference to bean 'litQueryById' while setting bean property 'litQueryById'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'litQueryById' defined in class path resource [cn/edu/scnu/spring/dao/litInformationDao/beans.xml]: Cannot resolve reference to bean 'dataSource' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [cn/edu/scnu/spring/dao/litInformation
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'litQuery' defined in class path resource [cn/edu/scnu/spring/dao/litInformationDao/beans.xml]: Cannot resolve reference to bean 'litQueryById' while setting bean property 'litQueryById'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'litQueryById' defined in class path resource [cn/edu/scnu/spring/dao/litInformationDao/beans.xml]: Cannot resolve reference to bean 'dataSource' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [cn/edu/scnu/spring/dao/litInformation
最主要的是这一句
nested exception is java.lang.IllegalStateException: Could not load JDBC driver class [com.mysql.jdbc.Driver]
你没有放入mysql的jar包，去网上搜索 下一个，然后添加到classpath，就行了
如果是用myEclipse 就放到你WEB-INF的lib下面