pagecontext1.jsp

一个超市管理系统,提供一些基本简单的操作,JSP+APACHE+ORCALE实现

<%@ page import="javax.servlet.http.*,javax.servlet.*"%>
<%@ page language="java" contentType="text/html; charset=gb2312"%> 
pageContext的测试页面－在pagecontext中设置一些属性：<br>
<%
ServletRequest req=pageContext.getRequest();
String name=req.getParameter("name");
out.println("name="+name);
pageContext.setAttribute("userName",name);
pageContext.getServletContext().setAttribute("sharevalue","多个页面共享的值");
pageContext.getSession().setAttribute("sessionValue","只有在session中才是共享的值");
out.println("<br>pageContext.getAttribute('userName'):");
out.println(pageContext.getAttribute("userName"));
%>
<a href="pagecontext2.jsp">next--></a>

<hr>
以下是这个页面的代码：<br>
<font color=red>
HttpServletRequest req=pageContext().getRequest();<br>
String name=req.getParameter("name");<br>
pageContext.setAttribute("userName",name);<br>
getServletContext().setAttribute("sharevalue","多个页面共享的值");<br>
getSession().setAttribute("sessionValue","只有在session中才是共享的值");<br>
out.println(pageContext.getAttribute("userName"));
</font>