最近应公司要求做了一个jquery的示例文件，包括：模态窗口怎么实现；jquery validate下的校验；怎么做图片特效；怎么实现异步操作；实现图片上传剪切效果等很多特效；
这里把jquery校验的部分传上来与大家分享，直接复制出来就可以正常使用（没有后台异步校验没有意义，所以未上传，如有需要qq联系）
文中需要用到的jquery validate的文件做校验
有什么不明白的地方可以参考我的博文 jquery校验详解
代码如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>validateDemo.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!-- js校验开始 -->
<link rel="stylesheet" type="text/css" href="../js/jQuery/validate/validation.css">
<script type="text/javascript" src="../js/jQuery/jquery.js"></script>
<script type="text/javascript" src="../js/jQuery/validate/jquery.validate.pack.js"></script>
<!--这个文件是通过addmethod新增加了几个方法，不会可以跳过，-->
<script type="text/javascript" src="../js/jQuery/validate/additional-methods.js"></script>
<!-- 这里可以看到所有的校验规则 -->
<script type="text/javascript" src="../js/jQuery/validate/messages_cn.js"></script>
<script type="text/javascript" >
$(document).ready(function(){
//通过id查找要进行校验的表单
$("#signupForm").validate({
//设置校验触发的时机,默认全是true。不要尝试去设置它为true，可能会有js错误。
//onsubmit:false,
//onfocusout:false,
//onkeyup:false,
//onclick:false,
//验证通过后执行的动作
//success:function(label){
// label.text("ok!").addClass("success");
//},
//手动设置错误信息的显示方式
errorPlacement: function(error, element) {
error.appendTo(element.parent().next());
// if ( element.is(":radio") )
// error.appendTo( element.siblings("span") );
// else if ( element.is(":checkbox") ){
// error.appendTo ( element.siblings("span") );
// }
// else
// error.appendTo( element.parent() );
}
,
rules:{
username:{
required: true,
rangelength: [ 5, 7 ]
},
password: {
required: true,
minlength: 5
},
confirm_password: {
required: true,
minlength: 5,
equalTo: "#password"
},
sex: {
required: true
},
email: {
required: true,
email: true
},
language: {
required: true,
rangelength:[2,3]
},
book: {
required: true,
rangelength:[2,3]
},
agree: "required",
upload: {
required: true,
accept: "flv|jpg"
}
},
//校验提示信息
messages: {
username: {
required: "请输入用户名",
rangelength: "用户名长度必须为{0}到{1}个字符或汉字"
},
password: {
required: "请输入密码",
minlength: "密码的最小长度是{0}个字符"
},
confirm_password: {
required: "请输入确认密码",
minlength: "确认密码的最小长度是{0}个字符",
equalTo: "确认密码与密码不相等"
},
email: "请输入正确的邮箱",
language: {
required: "该项必须填写",
rangelength: "请您选择{0}到{1}项语言"
},
book: {
required: "该项必须选择",
rangelength:"请您选择{0}到{1}本书"
},
agree: "您没有同意使用协议",
upload: {
required: "请输入上传文件的路径",
accept: "上传文件的格式只能是 flv或jpg"
}
}
});
})
</script>
<!-- js校验结束 -->
</head>
<body style="font-family:'宋体','Arial Narrow';
font-size:12px;
">
<!-- 表单校验功能 -->
<form class="cmxform" id="signupForm" method="get" action="">
<fieldset >
<legend>字段校验、日历控件完整示例</legend>
<table>
<tr>
<td><label for="username">Username</label></td>
<td><input id="username" name="username" /></td>
<!-- 这里设置的校验信息显示的地方在下一个td中，可以自行修改 -->
<td></td>
</tr>
<tr>
<td><label for="password">Password</label></td>
<td><input id="password" name="password" type="password" /></td>
<td></td>
</tr>
<tr>
<td><label for="confirm_password">Confirm password</label></td>
<td><input id="confirm_password" name="confirm_password" type="password" /></td>
<td></td>
</tr>
<tr>
<td><label for="sex">sex</label></td>
<td><pre><input id="sex1" name="sex" type="radio" />男 <input id="sex2" name="sex" type="radio" />女</pre></td>
<td></td>
</tr>
<tr>
<td><label for="email">Email</label></td>
<td><input id="email" name="email" /></td>
<td></td>
</tr>
<tr>
<td><label for="upload">Upload</label></td>
<td><input type="file" name="upload" /></td>
<td></td>
</tr>
<tr>
<td><label for="language">language</label></td>
<td><input type="checkbox" name="language" value="cn" />汉语
<input type="checkbox" name="language" value="en" />英语
<input type="checkbox" name="language" value="jp" />日语
<input type="checkbox" name="language" value="ge" />德语
</td>
<td></td>
</tr>
<tr>
<td><label for="book">book</label></td>
<td><select name="book" multiple="multiple" >
<option value="en">英语书</option>
<option value="cn">汉语书</option>
<option value="jp">日语书</option>
<option value="ge">德语书</option>
</select></td>
<td></td>
</tr>
<tr>
<td><label for="agree">同意该协议</label></td>
<td><input type="checkbox" class="checkbox" id="agree" name="agree" />
</td>
<td></td>
</tr>
<tr>
<td><input class="submit" type="submit" value="Submit" /></td>
</tr>
</table>
</fieldset>
</form>
<!-- 表单校验结束 -->
</body>
</html>
<title>validateDemo.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!-- js校验开始 -->
<link rel="stylesheet" type="text/css" href="../js/jQuery/validate/validation.css">
<script type="text/javascript" src="../js/jQuery/jquery.js"></script>
<script type="text/javascript" src="../js/jQuery/validate/jquery.validate.pack.js"></script>
<!--这个文件是通过addmethod新增加了几个方法，不会可以跳过，-->
<script type="text/javascript" src="../js/jQuery/validate/additional-methods.js"></script>
<!-- 这里可以看到所有的校验规则 -->
<script type="text/javascript" src="../js/jQuery/validate/messages_cn.js"></script>
<script type="text/javascript" >
$(document).ready(function(){
//通过id查找要进行校验的表单
$("#signupForm").validate({
//设置校验触发的时机,默认全是true。不要尝试去设置它为true，可能会有js错误。
//onsubmit:false,
//onfocusout:false,
//onkeyup:false,
//onclick:false,
//验证通过后执行的动作
//success:function(label){
// label.text("ok!").addClass("success");
//},
//手动设置错误信息的显示方式
errorPlacement: function(error, element) {
error.appendTo(element.parent().next());
// if ( element.is(":radio") )
// error.appendTo( element.siblings("span") );
// else if ( element.is(":checkbox") ){
// error.appendTo ( element.siblings("span") );
// }
// else
// error.appendTo( element.parent() );
}
,
rules:{
username:{
required: true,
rangelength: [ 5, 7 ]
},
password: {
required: true,
minlength: 5
},
confirm_password: {
required: true,
minlength: 5,
equalTo: "#password"
},
sex: {
required: true
},
email: {
required: true,
email: true
},
language: {
required: true,
rangelength:[2,3]
},
book: {
required: true,
rangelength:[2,3]
},
agree: "required",
upload: {
required: true,
accept: "flv|jpg"
}
},
//校验提示信息
messages: {
username: {
required: "请输入用户名",
rangelength: "用户名长度必须为{0}到{1}个字符或汉字"
},
password: {
required: "请输入密码",
minlength: "密码的最小长度是{0}个字符"
},
confirm_password: {
required: "请输入确认密码",
minlength: "确认密码的最小长度是{0}个字符",
equalTo: "确认密码与密码不相等"
},
email: "请输入正确的邮箱",
language: {
required: "该项必须填写",
rangelength: "请您选择{0}到{1}项语言"
},
book: {
required: "该项必须选择",
rangelength:"请您选择{0}到{1}本书"
},
agree: "您没有同意使用协议",
upload: {
required: "请输入上传文件的路径",
accept: "上传文件的格式只能是 flv或jpg"
}
}
});
})
</script>
<!-- js校验结束 -->
</head>
<body style="font-family:'宋体','Arial Narrow';
font-size:12px;
">
<!-- 表单校验功能 -->
<form class="cmxform" id="signupForm" method="get" action="">
<fieldset >
<legend>字段校验、日历控件完整示例</legend>
<table>
<tr>
<td><label for="username">Username</label></td>
<td><input id="username" name="username" /></td>
<!-- 这里设置的校验信息显示的地方在下一个td中，可以自行修改 -->
<td></td>
</tr>
<tr>
<td><label for="password">Password</label></td>
<td><input id="password" name="password" type="password" /></td>
<td></td>
</tr>
<tr>
<td><label for="confirm_password">Confirm password</label></td>
<td><input id="confirm_password" name="confirm_password" type="password" /></td>
<td></td>
</tr>
<tr>
<td><label for="sex">sex</label></td>
<td><pre><input id="sex1" name="sex" type="radio" />男 <input id="sex2" name="sex" type="radio" />女</pre></td>
<td></td>
</tr>
<tr>
<td><label for="email">Email</label></td>
<td><input id="email" name="email" /></td>
<td></td>
</tr>
<tr>
<td><label for="upload">Upload</label></td>
<td><input type="file" name="upload" /></td>
<td></td>
</tr>
<tr>
<td><label for="language">language</label></td>
<td><input type="checkbox" name="language" value="cn" />汉语
<input type="checkbox" name="language" value="en" />英语
<input type="checkbox" name="language" value="jp" />日语
<input type="checkbox" name="language" value="ge" />德语
</td>
<td></td>
</tr>
<tr>
<td><label for="book">book</label></td>
<td><select name="book" multiple="multiple" >
<option value="en">英语书</option>
<option value="cn">汉语书</option>
<option value="jp">日语书</option>
<option value="ge">德语书</option>
</select></td>
<td></td>
</tr>
<tr>
<td><label for="agree">同意该协议</label></td>
<td><input type="checkbox" class="checkbox" id="agree" name="agree" />
</td>
<td></td>
</tr>
<tr>
<td><input class="submit" type="submit" value="Submit" /></td>
</tr>
</table>
</fieldset>
</form>
<!-- 表单校验结束 -->
</body>
</html>
原文地址：http://blog.sina.com.cn/s/blog_608475eb0100oq0n.html
