通用分页方法接口
................\page
................\....\CVS
................\....\...\Entries
................\....\...\Repository
................\....\...\Root
................\....\impl
................\....\....\CVS
................\....\....\...\Entries
................\....\....\...\Repository
................\....\....\...\Root
................\....\....\PageServiceImp.java
................\....\PageService.java