1
<%@ page contentType = "text/html"%>
<%@ page 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:</br>
<% String str = "麻婆豆腐:20.6元,红烧肉:68.9元"; %>
<br> <%=str%></br>
<br><b><i>消费总和;<%=getPriceSum(str) %></i></b></br>
<br>李四的菜单:</br>
<% str = "剁椒鱼头:62.9元,烤鸭:199元,油闷大虾;289.9元"; %>
<br> <%=str%></br>
<br><b><i>消费总和;<%=getPriceSum(str) %></i></b></br>
</p>
</body>
</HTML>
2
<%@ page contentType="text/html" %>
<%@ page pageEncoding="utf-8" %>
<html>
<body bgcolor=cyan>
<br>英文课文(English Text):</br>
<p style="font-family: 宋体;font-size: 18;color: black;">
<br>课文音频(English Audio):</br>
<jsp:include page="audio.jsp" />
</p>
</body>
</html>>
<%@ page contentType="text/html" %>
<%@ page pageEncoding="utf-8" %>
<html>
<body bgcolor=pink>
<embed src="english/english.mp3" autostart=false>
课文音频
</embed>
</body>
</html>
3
<%@ page contentType="text/html" %>
<%@ page 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 contentType="text/html" %> <%@ page 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>>