標籤：log ext charset name pre html dem 姓名 不同
如果希望設定一個屬性，可以讓所有使用者看得見，則可以將屬性範圍設定成application，這樣屬性即可以儲存在伺服器上。
下面寫一個小例子來驗證一下：
(1)application_demo.jsp
1 <%@ page contentType="text/html; charset=utf-8" language="java" import="java.util.*" errorPage="" %> 2 <!doctype html> 3 <html> 4 <head> 5 <meta charset="utf-8"> 6 <title>application屬性範圍</title> 7 </head> 8 9 <body>10 <%11 application.setAttribute("name","lisi");12 application.setAttribute("birthday",new Date());13 %>14 <a href="application_demo2.jsp">通過超連結取得屬性</a>15 </body>16 </html>
(2)application_demo2.jsp
1 <%@ page contentType="text/html; charset=utf-8" language="java" import="java.util.*" errorPage="" %> 2 <!doctype html> 3 <html> 4 <head> 5 <meta charset="utf-8"> 6 <title>application屬性範圍</title> 7 </head> 8 9 <body>10 <%11 String name=(String)application.getAttribute("name");12 Date birthday=(Date)application.getAttribute("birthday");13 %>14 <h2>姓名：<%=name%></h2>15 <h2>生日：<%=birthday%></h2>16 </body>17 </html>
瀏覽器顯示：（此時我們開啟兩個不同的瀏覽器）
註：application範圍的屬性設定過多會影響伺服器效能。
jsp_屬性範圍_application
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