原文链接：http://www.cnblogs.com/datoubaba/archive/2012/06/06/2538873.html
概述：本篇主要讨论jquery.validate结合jquery.form实现对表单的验证和提交方案。
方式一：是通过jquery.validate的submitHandler选项，即当表单通过验证时执行回调函数。在这个回调函数中通过jquery.form来提交表单；
方式二：是通过jquery.form的beforeSubmit，即在提交表单前执行的回调函数，这个函数如果返回true，则提交表单，如果返回false，则终止提交表单。根据jquery.validate插件的valid()方法，就可以通过jquery.form提交表单时来对表单进行验证。
方式三：是通过jquery.validate验证表单的validate方法。这个方法的好处是对表单验证的控制更加自由
实例：下面通过三个实例分别阐述上面的三种方式
载入CSS样式文件
<link rel="stylesheet" type="text/css" media="screen" href="style.css" />
CSS样式文件内容
input{
height:25px;
line-height:25px;
padding-left:4px;
}
span.checked{
padding: 0px 5px 0px 25px;
margin-left: 10px;
margin-top: 0px;
margin-bottom: 3px;
height: 25px;
line-height:25px;
font-size: 12px;
white-space: nowrap;
text-align: left;
color: #E6594E;
background: url("images/acion2.png") no-repeat 3px; /* #FCEAE8 */
}
span.unchecked{
padding: 0px 5px 0px 25px;
margin-left: 10px;
margin-top: 0px;
margin-bottom: 3px;
height: 23px;
line-height:23px;
font-size: 12px;
border: 1px solid #E6594E;
white-space: nowrap;
text-align: left;
color: #E6594E;
background: #FCEAE8 url("images/acion.png") no-repeat 3px;
}
载入javascript文件
<script language="JavaScript" type="text/JavaScript" src="js/jQuery1.6.2.js"></script> <script language="JavaScript" type="text/JavaScript" src="js/jquery.form.js"></script> <script language="JavaScript" type="text/JavaScript" src="js/jquery.validate.js"></script> <script language="JavaScript" type="text/JavaScript" src="js/localization/messages_tw.js"></script>
HTML内容
<body><span id="result"></span>
<form id='commentForm'>
<fieldset>
<legend>jquery.validate+jquery.form提交的三种方式</legend>
<p>
<label for='cusername'>姓名</label><em>*</em>
<input id='cusername' name='username' size='25' />
</p>
<p>
<label for='cemail'>电子邮件</label><em>*</em>
<input id='cemail' name='email' size='25' />
</p>
<p>
<input class='submit' type='submit' value='提交'>
</p>
</fieldset>
</form>
</body>
jquery.validate+jquery.form提交方式1的javascript内容
<script language="javascript">
function showResponse(responseText,statusText) {
if(statusText=='success'){
$("#result").html(responseText);
}
}
$(document).ready(function(){
$('#commentForm').validate({
focusCleanup:true,focusInvalid:false,
errorClass: "unchecked",
validClass: "checked",
errorElement: "span",
submitHandler:function(form){
$(form).ajaxSubmit({
type:"post",
url:"test_save.php?time="+ (new Date()).getTime(),
//beforeSubmit: showRequest,
success: showResponse
});
},
errorPlacement:function(error,element){
var s=element.parent().find("span[htmlFor='" + element.attr("id") + "']");
if(s!=null){
s.remove();
}
error.appendTo(element.parent());
},
success: function(label) {
//label.addClass("valid").text("Ok!")
label.removeClass("unchecked").addClass("checked");
},
rules:{
username:{required:true,minlength:3},
email:{
required:true
}
}
});
});
</script>
jquery.validate+jquery.form提交方式2的javascript内容
<script language="javascript">
function showResponse(responseText,statusText) {
if(statusText=='success'){
$("#result").html(responseText);
}
}
function showRequest(formData,jqForm,options){
return $("#commentForm").valid();
}
$(document).ready(function(){
$('#commentForm').submit(function(){
$(this).ajaxSubmit({
type:"post",
url:"test_save.php?time="+ (new Date()).getTime(),
beforeSubmit:showRequest,
success:showResponse
});
return false; //此处必须返回false，阻止常规的form提交
});
$('#commentForm').validate({
focusCleanup:true,focusInvalid:false,
errorClass: "unchecked",
validClass: "checked",
errorElement: "span",
errorPlacement:function(error,element){
var s=element.parent().find("span[htmlFor='" + element.attr("id") + "']");
if(s!=null){
s.remove();
}
error.appendTo(element.parent());
},
success: function(label) {
//label.addClass("valid").text("Ok!")
label.removeClass("unchecked").addClass("checked");
},
rules:{
username:{required:true,minlength:3},
email:{
required:true
}
}
});
});
</script>
jquery.validate+jquery.form提交方式3的javascript内容
<script language="javascript">
var options={
focusCleanup:true,focusInvalid:false,
errorClass: "unchecked",
validClass: "checked",
errorElement: "span",
errorPlacement:function(error,element){
var s=element.parent().find("span[htmlFor='" + element.attr("id") + "']");
if(s!=null){
s.remove();
}
error.appendTo(element.parent());
},
success: function(label) {
//label.addClass("valid").text("Ok!")
label.removeClass("unchecked").addClass("checked");
},
rules:{
username:{required:true,minlength:3},
email:{
required:true
}
}
};
function showResponse(responseText,statusText) {
if(statusText=='success'){
$("#result").html(responseText);
}
}
function showRequest(formData,jqForm,options){
return $("#commentForm").valid();
}
$(document).ready(function(){
validator=$('#commentForm').validate(options);
$("#reset").click(function(){
validator.resetForm();
});
$("button").click(function(){
validator.form();
});
$('#commentForm').submit(function(){
$(this).ajaxSubmit({
type:"post",
url:"test_save.php?time="+ (new Date()).getTime(),
beforeSubmit:showRequest,
success:showResponse
});
return false; //此处必须返回false，阻止常规的form提交
});
});
</script>