<%@page import="java.util.*"%>
<%@page contentType="text/html;charset=gb2312"%>
<%
String ming=request.getParameter("name");
ArrayList al_ren;
if(application.getAttribute("al_ren")==null)
{
al_ren=new ArrayList();
application.setAttribute("al_ren",al_ren); }
al_ren=(ArrayList)application.getAttribute("al_ren");
al_ren.add(ming);
session.setAttribute("ming",ming);%>
<a href="liao.jsp">go</a><%
ArrayList al_ren=(ArrayList)application.getAttribute("al_ren");
for(int i=0;i<al_ren.size();i++)
{
out.println(al_ren.get(i)+" ");
}
%>
这个代码中al_ren=(ArrayList)application.getAttribute("al_ren");
al_ren.add(ming);
这两句是什么意思啊!
为什么al_ren的值一直都在啊
<%@page contentType="text/html;charset=gb2312"%>
<%
String ming=request.getParameter("name");
ArrayList al_ren;
if(application.getAttribute("al_ren")==null)
{
al_ren=new ArrayList();
application.setAttribute("al_ren",al_ren); }
al_ren=(ArrayList)application.getAttribute("al_ren");
al_ren.add(ming);
session.setAttribute("ming",ming);%>
<a href="liao.jsp">go</a><%
ArrayList al_ren=(ArrayList)application.getAttribute("al_ren");
for(int i=0;i<al_ren.size();i++)
{
out.println(al_ren.get(i)+" ");
}
%>
这个代码中al_ren=(ArrayList)application.getAttribute("al_ren");
al_ren.add(ming);
这两句是什么意思啊!
为什么al_ren的值一直都在啊
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货