1. 該執行個體主要告訴我們怎麼樣在JSP代碼中使用JSP動作，例如<jsp:forward >
2. 該執行個體需要四個檔案：login.jsp，test.jsp，ok.htm，no.htm
3. 首先看一下login.jsp
<html>
<center>
<form method=get action="http://127.0.0.1:8000/test.jsp">
username<input type=text name=username>
<br><br>
password<input type=password name=password>
<br><br>
<input type=submit value="確定">
</form>
</center>
</html>
4. test.jsp代碼如下：
<html>
<%
String username=request.getParameter("username");
if(username.trim().equals("abc"))
{%>
<jsp:forward page="ok.html" />
<%}
else
{%>
<jsp:forward page="no.html" />
<%}
%>
</html>
5. ok.htm和no.htm非常簡單，隨便寫寫：
<html>ok</html>
<html>no</html>
6. 最後進行配置，非常簡單:
把login.jsp,test.jsp,ok.htm,no.htm放在j2ee的public_html中就可以了,不需要啟動J2EE部署器了,這是一個簡單方法
7. 運行效果是當你輸入使用者名稱為abc時,頁面會自動跳轉到ok.htm頁面,否則跳到no.htm頁面
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