错误创建类，不能发现自己编写的类

Question

严重: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0' defined in ServletContext resource [/WEB-INF/spring/appServlet/servlet-context.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: com/vidyo/portal/admin/Room
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)

java.lang.ClassNotFoundException: com.vidyo.portal.admin.Room
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
这个错误是怎么回事？ 有时候可以编译过去有时候不行

Answer 1

加载类没成功  看看你的spring配置