前台 ajax 后台 用了struts 进行分页的实例，逻辑层级比较好，局部刷新客户体验良好-Ajax front struts back to page using the example of the logic level is good, a good customer experience partial refresh

Ajax Tutorial for partial form update

Ajax是在不刷新整个页面的前提下，刷新局部页面-Ajax is on the premise of not refresh the entire page, partial page