function validatedate(inputText) {
var thsid = $(inputText).attr('id');
var dateformat = /^(0?[1-9]|1[012])[\/\-](0?[1-9]|[12][0-9]|3[01])[\/\-]\d{4}$/;
}
这是我常见的js方法[不完整] onblur="validatedate(this)"
,但它接受无效日期
我的jsp中有一个datepicker textbox.onblur
我需要使用javascript验证日期
这些是规则
答案 0 :(得分:2)
变化:
onblur="validatedate(this)"
要:
onblur="validatedate(this.value);"
this
包含输入DOM元素本身,而不包含输入的文本值。
您的validatedate()
功能似乎无能为力。没有返回值,没有警报或任何停止表单处理的内容。我理所当然地认为你只提供了一个函数片段。
答案 1 :(得分:0)
现在我的方法已准备好......借助stackoverflow:
function validatedate(inputText)
{
var thsid=$(inputText).attr('id');
var classname=$(inputText).attr('class');
var classstr=classname.split(" ");
var ret=true;
var dateformat = /^(0?[1-9]|1[012])[\/\-](0?[1-9]|[12][0-9]|3[01])[\/\-]\d{4}$/;
// Match the date format through regular expression
if(inputText.value.trim()!="")
{
if( inputText.value.trim().match(dateformat))
{
// document.form1.text1.focus();
//Test which seperator is used '/' or '-'
var opera1 = inputText.value.split('/');
var opera2 = inputText.value.split('-');
lopera1 = opera1.length;
lopera2 = opera2.length;
// Extract the string into month, date and year
if (lopera1>1)
{
var pdate = inputText.value.split('/');
}
else if (lopera2>1)
{
var pdate = inputText.value.split('-');
}
var mm = parseInt(pdate[0]);
var dd = parseInt(pdate[1]);
var yy = parseInt(pdate[2]);
// Create list of days of a month [assume there is no leap year by default]
var ListofDays = [31,28,31,30,31,30,31,31,30,31,30,31];
if (mm==1 || mm>2)
{
if (dd>ListofDays[mm-1])
{
alert('Invalid date format!');
$(inputText).focus();
inputText.value="";
ret=false;
return false;
}
}
if (mm==2)
{
var lyear = false;
if ( (!(yy % 4) && yy % 100) || !(yy % 400))
{
lyear = true;
}
if ((lyear==false) && (dd>=29))
{
alert('Invalid date format!');
$('#'+thsid).focus();
inputText.value="";
ret=false;
return false;
}
if ((lyear==true) && (dd>29))
{
alert('Invalid date format!');
$('#'+thsid).focus();
inputText.value="";
ret=false;
return false;
}
}
}
else
{
alert("Invalid date format!");
$('#'+thsid).focus();
inputText.value="";
ret=false;
return false;
}
}
答案 2 :(得分:0)
Saidesh的回答让我大部分都能到达我想要的地方,但我并不喜欢JQuery的依赖。我添加了一些小改进以及功能齐全的测试页面。
<html>
<head>
<script type="application/javascript">
function validatedate(inputTextObject) {
// matches 11/12/2011 or 11-12-2011
var ret = true;
var dateformat = /^(0?[1-9]|1[012])[\/\-](0?[1-9]|[12][0-9]|3[01])[\/\-]\d{4}$/;
// Match the date format through regular expression
if (inputTextObject.value.trim() != "") {
if (inputTextObject.value.trim().match(dateformat)) {
// document.form1.text1.focus();
//Test which seperator is used '/' or '-'
var opera1 = inputTextObject.value.split('/');
var opera2 = inputTextObject.value.split('-');
lopera1 = opera1.length;
lopera2 = opera2.length;
// Extract the string into month, date and year
if (lopera1 > 1) {
var pdate = inputTextObject.value.split('/');
} else if (lopera2 > 1) {
var pdate = inputTextObject.value.split('-');
}
var mm = parseInt(pdate[0]);
var dd = parseInt(pdate[1]);
var yy = parseInt(pdate[2]);
// Create list of days of a month [assume there is a leap year by default]
var ListofDays = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
if (mm == 1 || mm > 2) {
if (dd > ListofDays[mm - 1]) {
alert('Invalid date format!');
inputTextObject.focus();
ret = false;
}
}
if (mm == 2) {
var lyear = false;
if ((!(yy % 4) && yy % 100) || !(yy % 400)) {
lyear = true;
}
if ((lyear == false) && (dd >= 29)) {
alert('Invalid date format!');
inputTextObject.focus();
ret = false;
}
if ((lyear == true) && (dd > 29)) {
alert('Invalid date format!');
inputTextObject.focus();
ret = false;
}
}
} else {
alert("Invalid date format!");
inputTextObject.focus();
ret = false;
}
if (ret == false) {
inputTextObject.style.color='red';
} else {
inputTextObject.style.color='blue';
}
}
return ret;
}
</script>
</head>
<body>
Date Test (<strong>mm/dd/yyyy</strong>): <input name="date_test" type="text" onblur="validatedate(this);" />
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACYAAAAmAQMAAACS83vtAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAAsTAAALEwEAmpwYAAAApElEQVQI1y3OQWpCMQBF0ZtnqF8Q286FCm7CgdgsqUv44qBuqvKXEqgLiCIokuY5qGcFJxiwcABxJoEHXhseedTkKQeony5NNdH1FLtuFEDofPc2i2sbeh0hl0jZgzoiKw1vPQhYICZKiJfQI4CFSFyyDA2FjFCCgm5fHLvIjWGs+Zo94fdvvnScOW74/6jbfdf0XClz4rnl530KLnw0XHELBvwAwg1K5dfpv8IAAAAASUVORK5CYII=" />
</body>
</html>
&#13;