Spring常见错误---自用

错误1

BeanFactory not initialized or already closed - call 'refresh' before accessing beans via the ApplicationContext

原因没有指定xml文件
正确格式

ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");

错误格式

ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext();

错误2

Caused by: java.lang.NoClassDefFoundError: org/springframework/aop/TargetSource

原因缺少相关jar包