jsp快速开始

 

【greeting.jsp】

 1 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 2 <%!
 3     private static final String DEFAULT_USER = "宾客";
 4 %>
 5 <%
 6     String user = request.getParameter("user");
 7     if(user == null){
 8         user = DEFAULT_USER;
 9     }
10 %>
11 <html>
12 <head>
13     <title>Title</title>
14 </head>
15 <body>
16     你好,<%= user%>!<br/><br />
17     <form action="greeting.jsp" method="post">
18         Enter your name:<br/>
19         <input type="text" name="user" /><br />
20         <input type="submit" value="Submit"/>
21     </form>
22 </body>
23 </html>

【多值jsp】

 1 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 2 <%
 3     String[] fruits = request.getParameterValues("fruits");
 4 %>
 5 <html>
 6 <head>
 7     <title>Title</title>
 8 </head>
 9 <body>
10     <h2>欢迎随意挑选</h2>
11     <%
12         if (fruits==null){
13     %>欢迎下次光临<%
14     }else{
15            for(String fruit:fruits){
16                 out.println(fruit);
17            }
18     }%>
19 </body>
20 </html>

 

posted @ 2018-03-20 22:04  chenhui7373  阅读(127)  评论(0)    收藏  举报