动态 INCLUDE 用 jsp:include 动作实现
<jsp:include page="included.jsp" flush="true" />
它总是会检查所含文件中的变化,适合用于包含动态页面,并且可以带参数
静态 INCLUDE 用 include 伪码实现,定不会检查所含文件的变化,适用于包含静态页面
<%@ include file="included.htm" %>