JSP第三次作业
任务一、教材P39实验3
<body bgcolor=cyan>
<br>英文课文（English Text）:</br>
<p style="font-family:宋体;font-size:18;color:black">
<jsp:include page="english.txt"></jsp:include>
<br>课文音频（English Audio）:</br>
<jsp:include page="audio.jsp"></jsp:include>
</p>
</body>
<body bgcolor=pink>
<embed src="english.mp3"autostart=false>
课文音频
</embed>
</body>
任务二、教材P45 8题
提示：圆形面积需要一个param 梯形面积需要3个param,可以参考教材例2-11
<body bgcolor=cyan>
<jsp:include page="circle.jsp">
<jsp:param value="5" name="r"/>
</jsp:include>
<jsp:include page="ladder.jsp">
<jsp:param value="1" name="a"/>
<jsp:param value="2" name="b"/>
<jsp:param value="3" name="h"/>
</jsp:include>
</body>
<body>
<b>被加载的文件，计算圆的面积</b>
<%String r=request.getParameter("r");
Double r1 =Double.parseDouble(r);
Double area =3.14*r1*r1;
out.print("圆的面积是"+area); %>
<br>
</body>
<body>
<b>被加载的文件，计算梯形的面积</b>
<%String a=request.getParameter("a");
String b=request.getParameter("b");
String h=request.getParameter("h");
double a1=Double.parseDouble(a);
double b1=Double.parseDouble(b);
double h1=Double.parseDouble(h);
double Tarea =((a1+b1)*h1/2);
out.print("梯形的面积是:"+Tarea); %>
</body>
第三题
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>
<style type="text/css">
div{
border:1px solid red;
display: inline;
}
#d1{
width: 1000px;
height:100px;
}
#d2{
width: 500px;
height:100px;
}
#d3{
width: 500px;
height:100px;
}
#d4{
width: 1000px;
height:100px;
}
</style>
</head>
<body>
<hr align="center" color="red">
<div id="d1" align="center">
<jsp:include page="top.jsp"></jsp:include>
</div>
<br>
<div id="d2" align="center">
<jsp:include page="left.jsp"></jsp:include>
</div>
<div id="d3" align="center">
<jsp:include page="main.jsp"></jsp:include>
</div>
<br>
<div id="d4" align="center">
<jsp:include page="end.jsp"></jsp:include>
</div>
</body>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <%="main.jsp的文件内容包含在这里 "%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <%="top.jsp的文件内容包含在这里 "%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <%="end.jsp的文件内容包含在这里 "%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <%="left.jsp的文件内容包含在这里 "%>
第四题
<body>
<%
int i = (int) (Math.random() * 10 + 1);
if (i % 2 == 0) {
%>
<jsp:forward page="two.jsp">
<jsp:param value="<%=i %>" name="num" />
</jsp:forward>
<%
} else {
%>
<jsp:forward page="one.jsp">
<jsp:param value="<%=i %>" name="num" />
</jsp:forward>
<%
}
%>
</body>
<body>
<%
String m = request.getParameter("num");
int n = Integer.parseInt(m);
out.print("随机数为" + n + "<br>");
%>
Hello,我是一个偶数！
</body>
