jquery validate示例
一导入js库
<scriptsrc="../js/jquery.js"type="text/javascript"></script>
<scriptsrc="../js/jquery.validate.js"type="text/javascript"></script>
二、默认校验规则
(1)required:true必输字段
(2)remote:"check.php"使用ajax方法调用check.php验证输入值
(3)email:true必须输入正确格式的电子邮件
(4)url:true必须输入正确格式的网址
(5)date:true必须输入正确格式的日期日期校验ie6出错,慎用
(6)dateISO:true必须输入正确格式的日期(ISO),例如:2009-06-23,1998/01/22只验证格式,不验证有效性
(7)number:true必须输入合法的数字(负数,小数)
(8)digits:true必须输入整数
(9)creditcard:必须输入合法的信用卡号
(10)equalTo:"#field"输入值必须和#field相同
(11)accept:输入拥有合法后缀名的字符串(上传文件的后缀)
(12)maxlength:5输入长度最多是5的字符串(汉字算一个字符)
(13)minlength:10输入长度最小是10的字符串(汉字算一个字符)
(14)rangelength:[5,10]输入长度必须介于5和10之间的字符串")(汉字算一个字符)
(15)range:[5,10]输入值必须介于5和10之间
(16)max:5输入值不能大于5
(17)min:10输入值不能小于10
三、默认的提示
messages:{
required:"Thisfieldisrequired.",
remote:"Pleasefixthisfield.",
email:"Pleaseenteravalidemailaddress.",
url:"PleaseenteravalidURL.",
date:"Pleaseenteravaliddate.",
dateISO:"Pleaseenteravaliddate(ISO).",
dateDE:"BittegebenSieeing眉ltigesDatumein.",
number:"Pleaseenteravalidnumber.",
numberDE:"BittegebenSieeineNummerein.",
digits:"Pleaseenteronlydigits",
creditcard:"Pleaseenteravalidcreditcardnumber.",
equalTo:"Pleaseenterthesamevalueagain.",
accept:"Pleaseenteravaluewithavalidextension.",
maxlength:$.validator.format("Pleaseenternomorethan{0}characters."),
minlength:$.validator.format("Pleaseenteratleast{0}characters."),
rangelength:$.validator.format("Pleaseenteravaluebetween{0}and{1}characterslong."),
range:$.validator.format("Pleaseenteravaluebetween{0}and{1}."),
max:$.validator.format("Pleaseenteravaluelessthanorequalto{0}."),
min:$.validator.format("Pleaseenteravaluegreaterthanorequalto{0}.")
},
如需要修改,可在js代码中加入:
jQuery.extend(jQuery.validator.messages,{
required:"必选字段",
remote:"请修正该字段",
email:"请输入正确格式的电子邮件",
url:"请输入合法的网址",
date:"请输入合法的日期",
dateISO:"请输入合法的日期(ISO).",
number:"请输入合法的数字",
digits:"只能输入整数",
creditcard:"请输入合法的信用卡号",
equalTo:"请再次输入相同的值",
accept:"请输入拥有合法后缀名的字符串",
maxlength:jQuery.validator.format("请输入一个长度最多是{0}的字符串"),
minlength:jQuery.validator.format("请输入一个长度最少是{0}的字符串"),
rangelength:jQuery.validator.format("请输入一个长度介于{0}和{1}之间的字符串"),
range:jQuery.validator.format("请输入一个介于{0}和{1}之间的值"),
max:jQuery.validator.format("请输入一个最大为{0}的值"),
min:jQuery.validator.format("请输入一个最小为{0}的值")
});
推荐做法,将此文件放入messages_cn.js中,在页面中引入
<scriptsrc="../js/messages_cn.js"type="text/javascript"></script>
四、使用方式
1.将校验规则写到控件中
<scriptsrc="../js/jquery.js"type="text/javascript"></script>
<scriptsrc="../js/jquery.validate.js"type="text/javascript"></script>
<scriptsrc="./js/jquery.metadata.js"type="text/javascript"></script>
$().ready(function(){
$("#signupForm").validate();
});
<formid="signupForm"method="get"action="">
<p>
<labelfor="firstname">Firstname</label>
<inputid="firstname"name="firstname"class="required"/>
</p>
<p>
<labelfor="email">E-Mail</label>
<inputid="email"name="email"class="requiredemail"/>
</p>
<p>
<labelfor="password">Password</label>
<inputid="password"name="password"type="password"class="{required:true,minlength:5}"/>
</p>
<p>
<labelfor="confirm_password">确认密码</label>
<inputid="confirm_password"name="confirm_password"type="password"class="{required:true,minlength:5,equalTo:'#password'}"/>
</p>
<p>
<inputclass="submit"type="submit"value="Submit"/>
</p>
</form>
使用class="{}"的方式,必须引入包:jquery.metadata.js
可以使用如下的方法,修改提示内容:
class="{required:true,minlength:5,messages:{required:'请输入内容'}}"
在使用equalTo关键字时,后面的内容必须加上引号,如下代码:
class="{required:true,minlength:5,equalTo:'#password'}"
2.将校验规则写到js代码中
$().ready(function(){
$("#signupForm").validate({
rules:{
firstname:"required",
email:{
required:true,
email:true
},
password:{
required:true,
minlength:5
},
confirm_password:{
required:true,
minlength:5,
equalTo:"#password"
}
},
messages:{
firstname:"请输入姓名",
email:{
required:"请输入Email地址",
email:"请输入正确的email地址"
},
password:{
required:"请输入密码",
minlength:jQuery.format("密码不能小于{0}个字符")
},
confirm_password:{
required:"请输入确认密码",
minlength:"确认密码不能小于5个字符",
equalTo:"两次输入密码不一致不一致"
}
}
});
});
//messages处,如果某个控件没有message,将调用默认的信息
<formid="signupForm"method="get"action="">
<p>
<labelfor="firstname">Firstname</label>
<inputid="firstname"name="firstname"/>
</p>
<p>
<labelfor="email">E-Mail</label>
<inputid="email"name="email"/>
</p>
<p>
<labelfor="password">Password</label>
<inputid="password"name="password"type="password"/>
</p>
<p>
<labelfor="confirm_password">确认密码</label>
<inputid="confirm_password"name="confirm_password"type="password"/>
</p>
<p>
<inputclass="submit"type="submit"value="Submit"/>
</p>
</form>
required:true必须有值
required:"#aa:checked"表达式的值为真,则需要验证
required:function(){}返回为真,表时需要验证
后边两种常用于,表单中需要同时填或不填的元素
原文:http://blog.sina.com.cn/s/blog_608475eb0100h3h1.html