jsp中javascript驗證日期格式
<%@ page contentType="text/html;charset=gb2312"%>
<html>
<head>
<title>RegTest</title>
<script type="text/javascript" language="javascript">
function dateCheck(str){
var re = new RegExp("^([0-9]{1,2})[.-]{1}([0-9]{1,2})[.-]{1}([0-9]{4})$");
var ar;
var res = true;
if ((ar = re.exec(str)) != null){
var i;
i = parseFloat(ar[1]);
// verify dd
if (i <= 0 || i > 31){
res = false;
}
i = parseFloat(ar[2]);
// verify mm
if (i <= 0 || i > 12){
res = false;
}
}else{
res = false;
}
if (!res){
alert('請輸入DD-MM-YYYY日期格式');
}
else{
alert("success");
}
return res;
}
</script>
<body>
<center>
<form name="datecheck" method="POST"
onsubmit="return dateCheck(this.date.value);">
<table border="0" cellpadding="8" cellspacing="0" width="50%">
<tr>
<td align="right" nowrap>
日 期：(DD-MM-YYYY):
</td>
<td>
<input type=text name="date" size="25">
</td>
</tr>
<tr>
<td class="center" colspan="2">
<center>
<input type=submit value="傳送">
<input type=reset value="重寫">
</center>
</td>
</tr>
</table>
</form>
</body>
</html>