<%@ 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>
<%@ 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>
<%@ 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>
