<jsp:directive.page import=""/>的用法和解释
2011-09-22 11:57
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<jsp:directive.page import="zero.space.ch03.BookBean"/>
相当于
<%@ page import="zero.space.ch03.BookBean" %>
但是也有区别:两个用法的作用范围不同,<%@ page import="zero.space.ch03.BookBean" %> 可用于多个页面内而<jsp:directive.page import="zero.space.ch03.BookBean"/>只能用于一个页面,不能跨页调用。
例如:如果你把所有类包的引入放在一个JSP中,在其他jsp中通include引入那个jsp。这时引入类就必须采用
<%@ page import="zero.space.ch03.BookBean" %> 这样的写法。
<jsp:directive.page import="zero.space.ch03.BookBean"/>这种写法只能在同一个jsp页面中使用,不能跨页调用
相当于
<%@ page import="zero.space.ch03.BookBean" %>
但是也有区别:两个用法的作用范围不同,<%@ page import="zero.space.ch03.BookBean" %> 可用于多个页面内而<jsp:directive.page import="zero.space.ch03.BookBean"/>只能用于一个页面,不能跨页调用。
例如:如果你把所有类包的引入放在一个JSP中,在其他jsp中通include引入那个jsp。这时引入类就必须采用
<%@ page import="zero.space.ch03.BookBean" %> 这样的写法。
<jsp:directive.page import="zero.space.ch03.BookBean"/>这种写法只能在同一个jsp页面中使用,不能跨页调用
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