启动项目出现：java.lang.NoClassDefFoundError: org/springframework/asm/ClassVisitor

ERROR org.springframework.web.context.ContextLoader:225 - Context initialization failed
java.lang.NoClassDefFoundError: org/springframework/asm/ClassVisitor
at org.springframework.context.support.AbstractRefreshableApplicationContext.customizeBeanFactory(AbstractRefreshableApplicationContext.java:218)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:467)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:397)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)

at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)

……

解决办法：缺少jar包

 org.springframework.asm-3.0.5.RELEASE.jar   根据相应的spring版本导入jar包