|
example2_1.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<html>
<head>
<meta charset="UTF-8">
</HEAD>
<BODY>
<FORM ACTION="" method=get>
<P>请输入梯形的上底：</P><INPUT TYPE="TEXT" NAME="TOP">
<P>请输入梯形的下底：</P><INPUT TYPE="TEXT" NAME="BOTTOM">
<P>请输入梯形的高：</P><INPUT TYPE="TEXT" NAME="HEIGHT">
<input type="submit">
</FORM>
<jsp:include page="Area.jsp"/>
</BODY>
</HTML>
Area.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>
<%!int sum=0;%>
<%
if(request.getParameter("TOP")!=""&&request.getParameter("TOP")!=null&&request.getParameter("BOTTOM")!=""&&request.getParameter("BOTTOM")!=null&&request.getParameter("HEIGHT")!=""&&request.getParameter("HEIGHT")!=null)
{sum=((Integer.parseInt(request.getParameter("TOP")))+Integer.parseInt(request.getParameter("BOTTOM")))*Integer.parseInt(request.getParameter("HEIGHT"))/2;}
else{}
%>
<p>该梯形的面积为：<%= sum %></p>
</body>
</html> | 
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