Question

一启动就报这个错 java.lang.Error: Unresolved compilation problems:

严重: Error configuring application listener of class com.saas.biz.commen.MyTimer
java.lang.Error: Unresolved compilation problems:
The import javax.servlet cannot be resolved
The import javax.servlet cannot be resolved
ServletContextListener cannot be resolved to a type
ServletContextEvent cannot be resolved to a type
ServletContextEvent cannot be resolved to a type
at com.saas.biz.commen.MyTimer.<init>(MyTimer.java:20)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)

Answer 1

The import javax.servlet cannot be resolved 应该是没找到包
at com.saas.biz.commen.MyTimer.<init>(MyTimer.java:20)　MyTimer类有没有无参构造方法？

Answer 2

可以把问题说清楚点吗