如果顺序出错，启动的时候会报错如下：
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*)
正确的顺序如下:
result-types?
,interceptors?
,default-interceptor-ref?
,default-action-ref?
,default-class-ref?
,global-results?
,global-exception-mappings?
,action*