此頁面爲實現從a.jsp提交，將數的運算提交到b.jsp中進行計算，並將結果返回到c.jsp
a.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="b.jsp" method="post">
本程序將計算（a*b）+(c/d)-a的值<br>
a:<input type="number" name="count_a"><br>
b:<input type="number" name="count_b"><br>
c:<input type="number" name="count_c"><br>
d:<input type="number" name="count_d"><br>
<input type="submit"><br>
</form>
</body>
</html>
b.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.io.*,java.util.*" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%--
<% String count_A=request.getParameter("count_a"); %>
<% String count_B=request.getParameter("count_b"); %>
--%>
<%
int m=Integer.parseInt(request.getParameter("count_a"));
%>
<%
int n=Integer.parseInt(request.getParameter("count_b"));
%>
<%
int k=Integer.parseInt(request.getParameter("count_c"));
%>
<%
int f=Integer.parseInt(request.getParameter("count_d"));
%>
<% int C=((m*n)+(k/f)-m); %>
<%--
a爲:<%=count_A %><br>
b爲:<%=count_B %><br>
和爲：<%=C %>
<%
out.print(m + "+" + n + "=" + (m + n));
%>
--%>
<%
session.setAttribute("count",C);
%>
<jsp:forward page="c.jsp">
<jsp:param value="<%=C %>" name="count"/>
</jsp:forward>
</body>
</html>
c.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.io.*,java.util.*" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
String COUNT=request.getParameter("count");
out.print("本程序將計算（a*b）+(c/d)-a的值爲："+COUNT);
%>
</body>
</html>
運行結果截圖：
