<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ page contentType="text/html" %>
<%@ 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;
}
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<br>张三的菜单</br>
<%
String str="麻婆豆腐：18元，红烧肉：26元";
%>
<br><%= str %></br>
<br><b><i>消费：<%=getPriceSum(str) %></i></b></br>
<br>李四的菜单</br>
<%
String strr="辣子鸡：50元，北京烤鸭：109元，油焖大虾：90元";
%>
<br><%= strr %></br>
<br><b><i>消费：<%=getPriceSum(strr) %></i></b></br>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%@ page import ="java.text.SimpleDateFormat" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<%
Date d=new Date();
SimpleDateFormat a=new SimpleDateFormat();
String now=a.format(d);
%>
<br>
<%
out.print(now);
%>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <h1>显示访问网页的日期时间<br>(服务器的时间日期)</h1> <%@ include file="index.jsp" %> </body> </html>
