jquery表单验证(jquery validate 怎么验证单选框)
亲爱的读者们,你是否对jquery表单验证和jquery validate 怎么验证单选框的关系感到好奇?在本文中,我将深入探讨它们之间的联系,让你对此有更深刻的理解。
jquery validate 怎么验证单选框
1、下载并导入js
<script src="jquery.js" type="text/javascript"></script>
<script src="jquery.validate.js" type="text/javascript"></script>
<script src="jquery.metadata.js" type="text/javascript"></script>
2、初始化参数
$.validator.setDefaults({
//验证成功后回调参数对象
submitHandler: function(){//回调方法
document.forms[0].submit();//验证通过后提交
}
});
$.metadata.setType("attr","validate");
//单选框、复选框,用validate设置
//详细见单选复选例子
$("form").validate({//绑定需要验证的form表单
//自定义参数对象
errorPlacement: function(error, element){//设置错误提示消息位置,可选
error.appendTo($(element).parents("td")[0]);
}
});
3、设定错误信息样式
<style type="text/css">
label.error{
color:red;
display:block
}
</style>
注意,样式名固定为
label.error,样式内容可修改。
4、表单元素绑定验证
绑定方法:
class=”XXX”或xxx=”XXX”,
例如
<input name="email" class="email"/>
Jquery.validate.js实现前端表单验证
jquery.validate.js表单验证
官方网站: http://bassistance.de/jquery-plugins/jquery-plugin-validation/
API: http://jquery.bassistance.de/api-browser/plugins.html
当前版本:1.5.5
需要JQuery版本:1.2.6+,兼容 1.3.2
<script src="../js/jquery.js" type="text/javascript"></script>
<script src="../js/jquery.validate.js" type="text/javascript"></script>
(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
(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
例子:自定义密码验证的规则
validate jquery怎么判断一个表单是否通过验证
validate jquery判断一个表单是否通过验证的方法是看页面是否发生跳转。
如果通过验证那么跳转页面,否则停留在原页面进行提示错误。
<html>
<head>
<title></title>
<script src="../Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script src="../Scripts/jquery.validate.js" type="text/javascript"></script>
<script src="../Scripts/jquery.metadata.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function(){
//validate自定义验证
jQuery.validator.addMethod("isZipCode", function(value, element){
var tel=/^[0-9]{6}$/;
return this.optional(element)||(tel.test(value));
},"请正确填写您的邮政编码");
$("#signupForm").validate({
rules:{
firstname:"required",
ybno:{
isZipCode: true
},
email:{
required: true,//表示不得为空
email: true//自带邮箱验证
},
password:{
required: true,
minlength: 5//自带判断字符最小长度
},
confirm_password:{
required: true,
minlength: 5,
equalTo:"#password"
//自带判断当前文本框值与指定ID为password的文本框的值是否相同
}
},
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"
}
}
});
});
</script>
//错误提示信息的样式
<style type="text/css">
label.error{color: Red;padding-left: 20px; border:1px solid#006655; margin-left:10px;
padding-left:0px; font-size:12px;}
input.error{border: solid 1px red;}
</style>
</head>
<body>
<form id="signupForm" method="get" action="">
<p>
<label for="firstname">Firstname</label>
<input id="firstname" name="firstname"/>
</p>
<p>
<label for="ybno">邮编</label>
<input id="ybno" name="ybno"/>
</p>
<p>
<label for="email">E-Mail</label>
<input id="email" name="email"/>
</p>
<p>
<label for="password">Password</label>
<input id="password" name="password" type="password"/>
</p>
<p>
<label for="confirm_password">确认密码</label>
<input id="confirm_password" name="confirm_password" type="password"/>
</p>
<p>
jquery在表单提交前有几种校验方法
在表单提交前进行验证的几种方式.
在Django中,为了减轻后台压力,可以利用JavaScript在表单提交前对表单数据进行验证。下面提供了有效的几种方式(每个.html文件为一种方式)。
formpage1.html
复制代码代码如下:
<!DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Example1</title>
<script type="text/javascript" src="/Resource/jquery-1.4.1.js"></script>
<script type="text/javascript">
function jump()
{
//清空表单所有数据
document.getElementById("firstname").value=""
document.getElementById("lastname").value=""
$("#firstnameLabel").text("")
$("#lastnameLabel").text("")
}
$(document).ready(function(){
$("#form1").bind("submit", function(){
var txt_firstname=$.trim($("#firstname").attr("value"))
var txt_lastname=$.trim($("#lastname").attr("value"))
$("#firstnameLabel").text("")
$("#lastnameLabel").text("")
var isSuccess= 1;
if(txt_firstname.length== 0)
{
$("#firstnameLabel").text("firstname不能为空!")
$("#firstnameLabel").css({"color":"red"});
isSuccess= 0;
}
if(txt_lastname.length== 0)
{
$("#lastnameLabel").text("lastname不能为空!")
$("#lastnameLabel").css({"color":"red"});
isSuccess= 0;
}
if(isSuccess== 0)
{
return false;
}
})
})
</script>
</head>
<body>
提交表单前进行验证(方法一)
<hr width="40%" align="left"/>
<form id="form1" method="post" action="/DealWithForm1/">
<table>
<tr>
<td>first_name:</td>
<td><input name="firstname" type="text" id="firstname"/></td>
<td><label id="firstnameLabel"></label></td>
</tr>
<tr>
<td>last_name:</td>
<td><input name="lastname" type="text" id="lastname"/></td>
<td><label id="lastnameLabel"></label></td>
</tr>
</table>
<hr width="40%" align="left"/>
<button type="submit">提交</button>
<button type="button" onclick="jump();">取消</button>
</form>
</body>
</html>
formpage2.html
复制代码代码如下:
<!DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Example2</title>
<script type="text/javascript" src="/Resource/jquery-1.4.1.js"></script>
<script type="text/javascript">
function jump()
{
//清空表单所有数据
document.getElementById("firstname").value=""
document.getElementById("lastname").value=""
$("#firstnameLabel").text("")
$("#lastnameLabel").text("")
}
function check(){
var txt_firstname=$.trim($("#firstname").attr("value"))
var txt_lastname=$.trim($("#lastname").attr("value"))
$("#firstnameLabel").text("")
$("#lastnameLabel").text("")
var isSuccess= 1;
if(txt_firstname.length== 0)
{
$("#firstnameLabel").text("firstname不能为空!")
$("#firstnameLabel").css({"color":"red"});
isSuccess= 0;
}
if(txt_lastname.length== 0)
{
$("#lastnameLabel").text("lastname不能为空!")
$("#lastnameLabel").css({"color":"red"});
isSuccess= 0;
}
if(isSuccess== 0)
{
return false;
}
return true;
}
</script>
</head>
<body>
提交表单前进行验证(方法二)
<hr width="40%" align="left"/>
<form id="form1" method="post" action="/DealWithForm1/" onsubmit="return check()">
<table>
<tr>
<td>first_name:</td>
<td><input name="firstname" type="text" id="firstname"/></td>
<td><label id="firstnameLabel"></label></td>
</tr>
<tr>
<td>last_name:</td>
<td><input name="lastname" type="text" id="lastname"/></td>
<td><label id="lastnameLabel"></label></td>
</tr>
</table>
<hr width="40%" align="left"/>
<button type="submit">提交</button>
<button type="button" onclick="jump();">取消</button>
</form>
</body>
</html>
formpage3.html
复制代码代码如下:
<!DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Example3</title>
<script type="text/javascript" src="/Resource/jquery-1.4.1.js"></script>
<script type="text/javascript">
function jump()
{
//清空表单所有数据
document.getElementById("firstname").value=""
document.getElementById("lastname").value=""
$("#firstnameLabel").text("")
$("#lastnameLabel").text("")
}
function checktosubmit(){
var txt_firstname=$.trim($("#firstname").attr("value"))
var txt_lastname=$.trim($("#lastname").attr("value"))
$("#firstnameLabel").text("")
$("#lastnameLabel").text("")
var isSuccess= 1;
if(txt_firstname.length== 0)
{
$("#firstnameLabel").text("firstname不能为空!")
$("#firstnameLabel").css({"color":"red"});
isSuccess= 0;
}
if(txt_lastname.length== 0)
{
$("#lastnameLabel").text("lastname不能为空!")
$("#lastnameLabel").css({"color":"red"});
isSuccess= 0;
}
if(isSuccess== 1)
{
form1.submit();
}
}
</script>
</head>
<body>
提交表单前进行验证(方法三)
<hr width="40%" align="left"/>
<form id="form1" method="post" action="/DealWithForm1/">
<table>
<tr>
<td>first_name:</td>
<td><input name="firstname" type="text" id="firstname"/></td>
<td><label id="firstnameLabel"></label></td>
</tr>
<tr>
<td>last_name:</td>
<td><input name="lastname" type="text" id="lastname"/></td>
<td><label id="lastnameLabel"></label></td>
</tr>
</table>
<hr width="40%" align="left"/>
<button type="button" onclick="checktosubmit()">提交</button>
<button type="button" onclick="jump();">取消</button>
</form>
</body>
</html>
以下是视图函数、URL配置以及相关设置
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
views.py
复制代码代码如下:
#coding: utf-8
from django.http import HttpResponse
from django.shortcuts import render_to_response
def DealWithForm1(request):
if request.method=="POST":
FirstName=request.POST.get('firstname','')
LastName=request.POST.get('lastname','')
if FirstName and LastName:
response=HttpResponse()
response.write("<html><body>"+FirstName+""+LastName+u"!你提交了表单!</body></html>")
return response
else:
response=HttpResponse()
response.write('<html><script type="text/javascript">alert("firstname或lastname不能为空!");\
window.location="/DealWithForm1"</script></html>')
return response
else:
return render_to_response('formpage1.html')
def DealWithForm2(request):
if request.method=="POST":
FirstName=request.POST.get('firstname','').encode("utf-8")
LastName=request.POST.get('lastname','').encode("utf-8")
if FirstName and LastName:
html="<html><body>"+FirstName+""+LastName+"!你提交了表单!"+"</body></html>"
return HttpResponse(html)
else:
response=HttpResponse()
response.write('<html><script type="text/javascript">alert("firstname或lastname不能为空!");\
window.location="/DealWithForm2"</script></html>')
return response
else:
return render_to_response('formpage2.html')
def DealWithForm3(request):
if request.method=="POST":
FirstName=request.POST.get('firstname','')
LastName=request.POST.get('lastname','')
if FirstName and LastName:
response=HttpResponse()
response.write('<html><body>'+FirstName+LastName+u'!你提交了表单!</body></html>')
return response
else:
response=HttpResponse()
response.write('<html><script type="text/javascript">alert("firstname或lastname不能为空!");\
window.location="/DealWithForm3"</script></html>')
return response
else:
return render_to_response('formpage3.html')
urls.py
复制代码代码如下:
from django.conf.urls.defaults import patterns, include, url
import views
from django.conf import settings
urlpatterns= patterns('',
url(r'^Resource/(?P<path>.*)$','django.views.static.serve',{'document_root':settings.STATIC_RESOURCE}),
url(r'^DealWithForm1','views.DealWithForm1'),
url(r'^DealWithForm2','views.DealWithForm2'),
url(r'^DealWithForm3','views.DealWithForm3'),
)
settings.py
复制代码代码如下:
# Django settings for CheckFormBeforeSubmit project.
import os
HERE= os.path.abspath(os.path.dirname(__file__))
DEBUG= True
TEMPLATE_DEBUG= DEBUG
...
STATIC_RESOURCE=os.path.join(HERE,"resource")
...
MIDDLEWARE_CLASSES=(
'django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.csrf.CsrfResponseMiddleware',
)
ROOT_URLCONF='CheckFormBeforeSubmit.urls'
TEMPLATE_DIRS=(
os.path.join(HERE,'template'),
# Put strings here, like"/home/html/django_templates" or"C:/www/django/templates".
# Always use forward slashes, even on Windows.
# Don't forget to use absolute paths, not relative paths.
)
感谢您花时间阅读本文!我们希望通过对jquery表单验证和jquery validate 怎么验证单选框的问题进行探讨,为您提供了一些有用的见解和解决方案。如果您需要更多帮助或者有其他疑问,请不要犹豫与我们联系。