jsp页面中获取参数值

1.GET方法用根据URL获取参数值 

1.1 jsp页面

 1 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 2 <script type="text/javascript" src="js/leave.js"></script>
 3 <%
 4     String flowid = request.getParameter("flowid");   //获取url中的参数值
 5 %>
 6 <html>
 7 <head>
 8     <title>请假审核单</title>
 9 </head>
10 <body>
11     <form id="leave" method="get">
12         <!-- 请假理由 -->
13         <textarea id="reason"></textarea>
14         <input type="hidden" id="flowid" name="flowid" value="<%=flowid%>>"/>
15         <input type="button" value="审核" onclick="commit();"/>
16     </form>
17 </body>
18 </html>

其中flowid是要获取的参数

1.2 URL

http://localhost:8080/t9/subsys/demo/leave.jsp?flowid=1613

 

2.GET方法,表单提交获取参数

2.1 JSP表单页面

 1 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 2 <script type="text/javascript" src="js/leave.js"></script>
 3 
 4 <html>
 5 <head>
 6     <title>请假审核单</title>
 7 </head>
 8 <body>
 9     <form id="leave" method="get" action="receive.jsp">
10         <!-- 请假理由 -->
11         <textarea id="reason"></textarea>
12         <input type="hidden" id="flowid" name="flowid" value="<%=flowid%>>"/>
13         <input type="button" value="审核" onclick="commit();"/>
14     </form>
15 </body>
16 </html>

2.2 接受页面

 1 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
 2 <%@ page import="java.io.*,java.util.*" %>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="utf-8">
 7 <title>接受来自另一个JSP页面的参数</title>
 8 </head>
 9 <body>
10 <h1>使用 GET 方法读取数据</h1>
11 <ul>
12     <li>
13         <p><b>请假理由:</b>
14        <%= request.getParameter("reason")%>
15         </p>
16     </li>
17 </ul>
18 </body>
19 </html>

Ps:当学习Spring后可以通过@RequestMapping更加方便的获取传递过来的参数 

posted @ 2017-05-10 15:35  Dia  阅读(18702)  评论(0)  编辑  收藏  举报