第三次JSP作业
1.<%@ page import="java.util.regex.Matcher" %>
<%@ page import="java.util.regex.Pattern" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%!
public double getPriceSum(String str){
Pattern pattern;
Matcher matcher;
String regex = "-?[0-9][0-9]*[.]?[0-9]*";
pattern = Pattern.compile(regex);
matcher = pattern.matcher(str);
double sum = 0;
while(matcher.find()){
String string = matcher.group();
sum += Double.parseDouble(string);
}
return sum;
}
%>
<html>
<style>
h3{
color: aquamarine;
}
p{
color: darkorchid;
}
</style>
<body>
<h3>张三的菜单</h3>
<p><% String str = "宫保鸡丁：55.55,麻辣豆腐：33.33";%></p>
<p><%=str%></p>
<i>消费总和：<%=getPriceSum(str)%></i><br>
<hr>
<h3>李四的菜单</h3>
<p><% String str1 = "酸菜鱼：33.33,水煮肉片：66.66";%></p>
<p><%=str1%></p>
<i>消费总和：<%=getPriceSum(str1)%></i><br>
</body>
</html>
2.<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body>
<a href="time.jsp">显示访问网页的日期、时间</a>
</body>
</html>
<%@ page import="java.util.Date" %>
<%@ page import="java.text.SimpleDateFormat" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<style>
h3{
color: darkgray;
}
</style>
<body>
<h3>
用户在
<%Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
%>
<%=sdf.format(date)%>
访问了网页
</h3>
</body>
</html>
3.<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body bgcolor="#faebd7">
<embed src="song/song.mp3" autostart="false">
歌曲音频
</embed>
</body>
</html>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<style>
p{
font-family: "宋体";
font-size: 18px;
color: darkorchid;
}
</style>
<body bgcolor="#5f9ea0">
音乐歌词<br>
<p>
<jsp:include page="song/geci.txt"></jsp:include>
歌曲音频<br>
<jsp:include page="audio.jsp"></jsp:include>
</p>
</body>
</html>
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