3.17JSP作业
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=pink> <p style="font-family:黑体;font-size:20"> <br>张三的菜单：</br> <% String str="麻辣豆腐:20元,红烧肉:69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:60元,烤鸭:169元,红焖大虾:280元"; %> <br><%= str %></br> <br><b><i>消费总和:<%= getPriceSum(str) %></i></b></br> </p> </body> </HTML>
2.日期时间
<%@ page contentType="text/html" %>
<%@ 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"%> <%@ 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>
3.听英语
<%@ page contentType="text/html;language="java" import="java.util.*" pageEncoding="utf-8"%> <HTML><body bgcolor=pink> <br>英文课文(english text):</br> <p style="font-family:宋体;font-size:18;color:black"> <jsp:include page="english/english.txt"/> <br>课文音频(English audio):</br> <jsp:include page="audio.jsp"/> </p> </body> </HTML>
<%@ page contentType="text/html;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>
