<%--
Created by IntelliJ IDEA.
User: x'b'w
Date: 2021/5/21
Time: 18:49
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
作用域
main
<%--比较4种作用域--%>
<%-- pageContext--%>
<%--request--%>
<%
request.setAttribute("name","bean");
// request.getRequestDispatcher("target.jsp").forward(request,response);
%>
<%--session--%>
<%
session.setAttribute("name02","zq");
// response.sendRedirect("target.jsp");
%>
<%--application--%>
<%
application.setAttribute("name03","tmqq");
response.sendRedirect("target.jsp");
%>