使用JSP頁面執行el運算式的方法__JSP

<% ... @page contentType="text/html; charset=GBK" isELIgnored="false" %>
<% ...
   if (application.getAttribute("count") == null) {
     application.setAttribute("count", new Integer(0));
   }
   Integer count = (Integer) application.getAttribute("count");
   application.setAttribute("count", new Integer(count.intValue() + 1));
%>
< html >
< head >
< title > 頁面被訪問數統計 </ title >
< meta  http-equiv ="Content-Type"  content ="text/html; charset=GBK"   />
</ head >
< body  bgcolor ="#ffffff" >
< form  action ="RequestJsp.jsp" >
< p ></ p >
< p ></ p >
< h1 >
    < input  type ="submit"  name ="sub"  value ="點擊!" />
</ h1 >

<!-- 輸出訪問次數  -->
< h1 >    此頁面已被訪問了${applicationScope.count}次
</ h1 >
</ form >
</ body >
</ html >