Mybatis异常：java.lang.ClassNotFoundException: org.mybatis.spring.SqlSessionFactoryBean

错误信息：

Caused by: java.lang.ClassNotFoundException: org.mybatis.spring.SqlSessionFactoryBean
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1333)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167)
	at org.springframework.util.ClassUtils.forName(ClassUtils.java:250)
	at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:394)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1397)
	at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1344)
	... 19 more

解决：导入 mybatis-spring.jar