package里元素必须按照一定的顺序排列:
result-types
interceptors
default-interceptor-ref
default-action-ref
default-class-ref
global-results
global-exception-mappings
action*(就是所有的action放到最后)
否则,tomcat启动时报错:
The content of element type "package" must match "(result-types?,interceptors?,default-
interceptor-ref?,default-
action-ref?,default-class-ref?,global-results?,global-exception-mappings?,action*)".