JSP页面里得计算问题 求帮助
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<jsp:directive.page import="dao.*"/>
<jsp:directive.page import="domain.*"/>
<%
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 'ka_xiao_record_add.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">
-->
<style type="text/css">
<!--
.style1 {color: #FF0000}
.style3 {
font-family: Arial, Helvetica, sans-serif;
font-size: 36px;
color: #0000FF;
}
-->
</style>
</head>
<body>
<h1 align="center" class="style3"> 卡销售 录入</h1>
<td align="center">
<form action="ka_xiao" method="post" name="ka_xiao">
<table width="923" border="0" cellspacing="-2" cellpadding="-2" height="329">
<tr>
<td valign="top"><br></td><td width="28%" height="30" align="center">时 间：</td>
<td width="82%" class="word_grey"><input name="DAY" type="text" id="date" >
<span class="style1">日期格式：YYYY-MM-DD(请注意填写正确的日期格式）</span> </td>
</tr>
<tr>
<td valign="top"><br></td><td height="28" align="center">价 格：</td>
<td class="word_grey"><input name="MONEY" type="text" id="" >
<span class="style1">元/张</span></td>
</tr>
<tr>
<td valign="top"><br></td><td height="28" align="center">总 数</td>
<td height="28"><input name="AMOUNT" type="text" onblur='autocount()' >
</td>
</tr>
<script type="text/javascript">
function autocount(){
var AMOUN=document.getElementById('AMOUN').value;
var MONEY=document.getElementById('MONEY').value;
document.getElementById('TOTAL_MONEY').value=AMOUN*MONEY;
}
</script>
<tr>
<td valign="top"><br></td><td height="28" align="center">TOTAL_MONEY：</td>
<td><input name="TOTAL_MONEY" type="text" id="" readonly="ture" ></td>
</tr>
<tr>
<td valign="top"><br></td><td height="28" align="center" style="padding-left:10px">DIS_TO_MONEY：</td>
<td class="word_grey"><input name="DISCOUNT_TOTAL_MONEY" type="text" id="" size="50">
</td>
</tr>
<tr>
<td valign="top"><br></td><td height="34"> </td>
<td ><input name="Submit" type="submit" value="确定提交" onclick=="return autocount(myform)"><input type="hidden" name="change" value="insert"/>
<input name="Submit2" type="reset" value="重新填写"></td>
</tr>
</table>
</form>
</body>
</html>
要求当我输入 价格 总数 之后 TOYALY_MONEY会显示计算出的总价格
这是JSP 部分代码 谁有时间 帮我看看 能不等达到我想要得效果 会加分得
[解决办法]
不过你需要为那几个元素添加ID属性：<input name="MONEY" type="text" id="MONEY" >
<input id="AMOUNT" name="AMOUNT" type="text" onblur='autocount()' >
<input id="TOTAL_MONEY" name="TOTAL_MONEY" type="text" id="" readonly="ture" >
另外，document.getElementById('TOTAL_MONEY').value=AMOUN*MONEY;改成如下形式：
document.getElementById('TOTAL_MONEY').value=Math.floor(AMOUN)*Math.floor(MONEY);
[解决办法]
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%><jsp:directive.page import="dao.*"/><jsp:directive.page import="domain.*"/><%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 'ka_xiao_record_add.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">--> <style type="text/css"><!--.style1 {color: #FF0000}.style3 {font-family: Arial, Helvetica, sans-serif;font-size: 36px;color: #0000FF;}--> </style> <script type="text/javascript"> function autocount(){ var AMOUN=document.getElementById('[color=#FF0000]AMOUNT[/color]').value; var MONEY=document.getElementById('MONEY').value; document.getElementById('TOTAL_MONEY').value=AMOUN*MONEY; } </script> </head> <body> <h1 align="center" class="style3"> 卡销售 录入</h1> <td align="center"><form action="ka_xiao" method="post" name="ka_xiao"><table width="923" border="0" cellspacing="-2" cellpadding="-2" height="329"><tr> <td valign="top"><br></td><td width="28%" height="30" align="center">时 间：</td> <td width="82%" class="word_grey"><input name="DAY" type="text" id="date" > <span class="style1">日期格式：YYYY-MM-DD(请注意填写正确的日期格式）</span> </td> </tr> <tr> <td valign="top"><br></td><td height="28" align="center">价 格：</td> <td class="word_grey"><input[color=#FF0000] id="MONEY" [/color]name="MONEY" type="text" id="" > <span class="style1">元/张</span></td> </tr> <tr> <td valign="top"><br></td><td height="28" align="center">总 数</td> <td height="28"><input[color=#FF0000] id="AMOUNT" [/color]name="AMOUNT" type="text" onblur='autocount()' > </td> </tr> <tr> <td valign="top"><br></td><td height="28" align="center">TOTAL_MONEY：</td> <td><input[color=#FF0000] id="TOTAL_MONEY" [/color]name="TOTAL_MONEY" type="text" id="" readonly="ture" ></td> </tr> <tr> <td valign="top"><br></td><td height="28" align="center" style="padding-left:10px">DIS_TO_MONEY：</td> <td class="word_grey"><input name="DISCOUNT_TOTAL_MONEY" type="text" id="" size="50"> </td> </tr> <tr> <td valign="top"><br></td><td height="34"> </td> <td ><input name="Submit" type="submit" value="确定提交" onclick=="return autocount(myform)"><input type="hidden" name="change" value="insert"/> <input name="Submit2" type="reset" value="重新填写"></td> </tr> </table></form> </body></html>