JSP第三次作业

任务一、教材P39实验3

复制代码

<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>

复制代码

<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

复制代码

<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>

复制代码
复制代码

<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>

复制代码
复制代码

<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>

复制代码

 

 

第三题

 

复制代码
<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>
复制代码
复制代码
<%@ 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 "%>
复制代码
复制代码
<%@ 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 "%>
复制代码
复制代码
<%@ 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 "%>
复制代码
复制代码
<%@ 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 "%>
复制代码

 

 

 

 

 第四题

复制代码
<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>
复制代码
复制代码
<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>
复制代码

posted @ 2022-04-03 19:41  曹新  阅读(57)  评论(0)    收藏  举报