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在JSP页面获取js中的变量值

2015-12-29 13:58 826 查看
<%@ 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>

<head>

<base href="<%=basePath%>">

<title>My JSP 'test.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">

<meta http-equiv="cache-control" content="no-cache">

<meta http-equiv="expires" content="0">

<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

<meta http-equiv="description" content="This is my page">

<!--

<link rel="stylesheet" type="text/css" href="styles.css">

-->

<script type="text/javascript">

function get(){

document.getElementById("sel").value=document.getElementById("pull_down").value;

document.getElementById("myForm").submit();

}

</script>

</head>

<body>

同一页面中JSP获取JS取到的值 <br>

下拉框:<br/>

<select id="pull_down" onchange="get()">

<option>请选择</option>

<option value="1">一</option>

<option value="2">二</option>

<option value="3">三</option>

</select>

<form action="main/test.jsp" method="post" id="myForm">

<input type="hidden" id="sel" name="sel"/>

</form>

<%

out.print("JSP获取下拉框的value值:"+request.getParameter("sel"));

%>

</body>

</html>
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