main.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <!-- main.jsp include动作标记加载到circle.jsp和ladder.jsp param提供圆的半径和梯形的上下底和高。 cricle.jsp 显示圆的面积 ladder.jsp 显示梯形面积 --> <base href="<%=basePath%>"> <title>My JSP 'main.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <jsp:include page="cricle.jsp"> <jsp:param value="3" name="R"/> </jsp:include> <jsp:include page="ladder.jsp"> <jsp:param value="2" name="Upb"/> <jsp:param value="4" name="Downb"/> <jsp:param value="5" name="H"/> </jsp:include> </body> </html>
cricle.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'cricle.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <% String r = request.getParameter("R"); int R = Integer.parseInt(r); out.print("半径为："+ r + "，面积为：" + Math.PI * R * R); %> <br/> </body> </html>
ladder.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'ladder.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <% String Up = request.getParameter("Upb"); String Down = request.getParameter("Downb"); String H = request.getParameter("H"); int upB = Integer.parseInt(Up); int downB = Integer.parseInt(Down); int h = Integer.parseInt(H); out.println("上底为：" + Up + "，下底为：" + Down + "，高为：" + H); out.print("梯形的面积为：" + ((upB + downB) * h) / 2); %> </body> </html>
