jsp第三次作业

1.P37 实验1 消费总和

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ page import="java.util.regex.Pattern"%>
<%@ page import="java.util.regex.Matcher"%>

<%!public double getPriceSum(String input) {
        Pattern pattern;
        Matcher matcher;
        String regex = "-?[0-9][0-9]*[.]?[0-9]*";
        pattern = Pattern.compile(regex);
        matcher = pattern.matcher(input);
        double sum = 0;
        while (matcher.find()) {
            String str = matcher.group();
            sum += Double.parseDouble(str);
        }
        return sum;
    }%>

<html>
<body bgcolor=cyan>
    <p style="font-family:黑体;font-size:20">
        <br>张三的菜单：
        <%
            String str = "麻婆豆腐:20.6元,红烧肉：68.9元";
        %>
        <br><%=str%>
        <br> <b><i>消费总和：<%=getPriceSum(str)%></i> </b> <br>李四的菜单：

        <%
     str = "剁椒鱼头：62.9元，烤鸭：199元，红焖大虾：289.9元";
 %>
        <br><%=str%>
        <br> <b><i>消费总和：<%=getPriceSum(str)%></i> </b>


    </p>


</body>
</html>

2.P39 实验2 日期和时间

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>



<%@ page import="java.time.LocalDate"%>
<%@ page import="java.time.LocalTime"%>
<%
    LocalDate date = LocalDate.now();
LocalTime time = LocalTime.now();
%>
<h2>
    用户在<%=date.getYear()%>/<%=date.getMonthValue()%>/
    <%=date.getDayOfMonth()%><br>
    <%=time.getHour()%>:<%=time.getMinute()%>:<%=time.getSecond()%>访问了网页.
</h2>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>


<hTML>
<body>
    <h1>
        显示访问网页的日期、时间<br>(服务器端的日期、时间)
    </h1>
    <%@include file="time.jsp"%>
</body>
</hTML>

3.实验三听英语

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<html>

<body bgcolor=cyan>
    <br>英文课文(ENglish Text):
    <p style="font-family:宋体;font-size:18;color:black">
        <jsp:include page="english/english.txt" />
        <br>课文音频(English Audio):
        <jsp:include page="audio.jsp" /></p>

</body>
</html>


<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>


<html>


<body bgcolor=pink>
    <embed src="english/english.mp3" autostart=false>
    课文音频
    </embed>
</body>
</html>