本文实例为大家分享了封装jquery简易验证插件的具体代码,供大家参考,具体内容如下
html代码:
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<!DOCTYPE html>
< html lang = "en" >
< head >
< meta charset = "UTF-8" >
< title >jQuery数据校验插件开发</ title >
< link rel = "stylesheet" href = "css/register.css" />
< link rel = "stylesheet" href = "css/validate.css" />
</ head >
< body >
< main >
< section >
< form method = "post" action = "result.html" ac id = "register" >
< div class = "register-wrap" >
< div class = "register" >
< ul >
< li >
< label for = "username" >用户名:</ label >
< input type = "text" id = "username" name = "username" tabindex = "1" class = "format-input" placeholder = "请输入用户名" data-vt-required-msg = "用户名不能为空" data-vt-regexp-msg = "用户名必须是以字母、数字、下划线组成,且不能以数字开头(6-20位)" data-vt-required = true data-vt-regexp = '^[\w_]\w{5,19}$' autofocus>
</ li >
< li >
< label for = "pwd" >密码:</ label >
< input type = "password" id = "pwd" name = "password" tabindex = "2" class = "format-input" placeholder = "请输入密码" data-vt-required = true data-vt-regexp = "^[a-zA-Z_][\w_]{5,11}$" data-vt-required-msg = "密码不能为空" data-vt-regexp-msg = "密码必须是由字母、数字、下划线组成,且不能以数字开头(6-12位)" >
</ li >
< li >
< label for = "confirmPwd" >确认密码:</ label >
< input type = "password" id = "confirmPwd" name = "password" tabindex = "3" class = "format-input" placeholder = "请再次输入密码" data-vt-required = true data-vt-required-msg = "密码不能为空" data-vt-equals = true data-vt-equals-msg = "两次密码不一致" >
</ li >
< li >
< label for = "phone" >手机号:</ label >
< input type = "text" id = "phone" name = "phone" tabindex = "4" class = "format-input" placeholder = "请输入手机号" data-vt-required = true data-vt-phone = true data-vt-required-msg = "手机号不能为空" data-vt-phone-msg = "手机号不合法" >
</ li >
< li >
< label for = "tel" >座机:</ label >
< input type = "text" id = "tel" name = "tel" tabindex = "5" class = "format-input" placeholder = "请输入座机号码" data-vt-required = true data-vt-tel = true data-vt-required-msg = "座机号不能为空" data-vt-tel-msg = "座机号不合法" >
</ li >
< li >
< label for = "email" >邮箱:</ label >
< input type = "text" id = "email" name = "email" tabindex = "6" class = "format-input" placeholder = "请输入邮箱地址" data-vt-required = true data-vt-email = true data-vt-required-msg = "邮箱不能为空" data-vt-email-msg = "邮箱不合法" >
</ li >
< li >
< label for = "submitBtn" ></ label >
< input type = "submit" value = "注册" id = "submitBtn" tabindex = "7" class = "format-input submit-btn" >
</ li >
</ ul >
</ div >
</ div >
</ form >
</ section >
</ main >
< script src = "js/jquery2.0.js" ></ script >
< script src = "js/formValidate.js" ></ script >
< script >
$(function(){
$('#register').formValidate();
});
</ script >
</ body >
</ html >
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css部分
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* {
margin : 0 ;
padding : 0 ;
box-sizing: border-box;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
}
ul li {
list-style : none ;
position : relative ;
}
input {
outline : 0 ;
}
.format-input {
display : inline- block ;
width : 84% ;
height : 35px ;
padding : 0 0 0 3px ;
border : 1px solid #fff ;
vertical-align : baseline ;
}
:focus {
outline : 4px solid #007fff ;
}
html,
body {
width : 100% ;
height : 100% ;
}
body {
min-height : 100% ;
font : 12px / 1.5 'Microsoft YaHei' , arial , sans-serif ;
background : url (../image/bj.jpg) no-repeat ;
background- size : cover;
overflow : hidden ;
}
.register-wrap {
position : absolute ;
top : 0 ;
bottom : 0 ;
left : 0 ;
right : 0 ;
width : 450px ;
height : 415px ;
margin : auto ;
background : rgba( 0 , 0 , 0 , 0.5 );
}
.register {
width : 100% ;
height : 100% ;
padding : 20px 30px ;
color : #fff ;
}
.register > ul > li {
font-size : 0 ;
margin : 0 0 20px 0 ;
}
.register > ul > li label {
display : inline- block ;
width : 16% ;
font-size : 12px ;
}
.submit-btn {
border : 1px solid transparent ;
font-size : 18px ;
font-weight : bold ;
color : #fff ;
background : #51a8ff ;
box-shadow: 1px 1px #AFC4EA ,
2px 2px #AFC4EA ,
3px 3px #AFC4EA ;
}
.submit-btn:hover {
cursor : pointer ;
}
.submit-btn:focus {
outline : none ;
border : 1px solid #f0f3f9 ;
}
.submit-btn:active {
border : 1px solid #f0f3f9 ;
transform: translate( 1px , 1px );
box-shadow: 1px 1px #AFC4EA ,
2px 2px #AFC4EA ;
}
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提示错误的tips样式:
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.validate-error-tip {
position : absolute ;
top : 0 ;
left : 0 ;
display : table;
min-width : 150px ;
min-height : 35px ;
font-size : 12px ;
border : 1px solid lightblue;
padding : 5px ;
background : #fff ;
color : #666 ;
z-index : 9999 ;
}
.validate-error-tip:before {
position : absolute ;
top : 0 ;
left : -15px ;
display : block ;
content : '' ;
width : 0 ;
height : 0 ;
border-color : transparent lightblue transparent transparent ;
/*1、下边框有颜色 对应着上边框没有宽度,是正三角形;2、上边框有颜色 对应着下边框没宽度,是倒三角形*/
border-style : solid ;
border-width : 15px 15px 15px 0 ;
}
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javascript部分:
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( function ($, factory, pluginName) {
factory($, pluginName);
})(jQuery, function ($, pluginName){
//插件默认配置项
var __DEFAULT__ = {
//默认触发验证的事件为input事件
initEvent: 'input' ,
prefix: 'vt' //自定义属性前缀
};
//插件内部编写校验规则
var __RULES__ = {
//正则
regexp: function (ruleData) {
return new RegExp(ruleData).test( this .val());
},
//必填项
required: function (ruleData) {
return $.trim( this .val()).length > 0;
},
//最小值
minLength: function (ruleData) {
return $.trim( this .val()).length > ruleData ;
},
//最大值
maxLength: function (ruleData) {
return $.trim( this .val()).length < ruleData;
},
//验证两次密码是否一致
isEquals: function (ruleData) {
var pwd = $( ':password' ).eq(0); //$(':password')[0]是什么对象呢?
return pwd.val() === this .val();
},
//是否是邮箱
isEmail: function (ruleData) {
return /\w+@\w+\..+/g.test( this .val());
},
//是不是手机号
isPhone: function (ruleData) {
return /^1\d{10}$/g.test( this .val());
},
//是不是座机号码
isTel: function (ruleData) {
return /^0\d{2,3}-\d{7,8}$/g.test( this .val());
}
};
$.fn[pluginName] = function (options) {
//标识是否提交表单
var $ this = this ;
if (!$ this .is( 'form' )) { return ; }
//this: 这里的this是jQuery实例对象
$ this .$file = $ this .find( 'input:not([type="button"][type="submit"])' ); //给当前实例对象(也就是调用该插件的jquery对象)添加一个$file的属性
$.extend($ this , __DEFAULT__, options); //以默认配置为优先,以用户配置为覆盖
//格式化rule规则。
// 将一个字符串在每一个大写字母前加上一个'-',并且全部转为小写
// vtEmailMsg > vt-email-msg
$ this .formatRule = function (str, connector) {
if ( typeof str !== 'string' ) {
return str;
}
//使用replace、正则(匹配单个大写字母)
str = str.replace(/[A-Z]/g, function (match, index) {
if (index === 0) { return match.toLowerCase() }
return connector + match.toLowerCase();
});
return str;
};
//显示错误信息
$ this .showErrorTip = function (errorMsg) {
var $tip = $( "<div class='validate-error-tip'> </div>" ),
offset = this .position(),
elHeight = this .outerHeight(),
elWidth = this .outerWidth();
if ( this .siblings( '.validate-error-tip' ).length > 0){
this .siblings( '.validate-error-tip' ).eq(0).text(errorMsg).show();
} else {
$tip.text(errorMsg).
css({
top: offset.top,
left: offset.left + elWidth + 15,
width: $tip.width()
});
this .after($tip);
$tip.show();
}
};
//监听form表单里所有的input的事件
$ this .$file.on( this .initEvent, function (){
var $input = $( this );
//清除错误提示框
$input.siblings( '.validate-error-tip' ).remove();
//注意这里是循环的我们插件的规则,而不是用户拥有的规则
$.each(__RULES__, function (key, fn) {
var rule = '' ,
errorMsg = '' ;
//如果key是以is字符开头、则去掉is
if (key.indexOf( 'is' ) === 0) {
key = key.slice(2);
}
key = $ this .formatRule(key, '-' ); //将规则格式化为html中书写的形式
rule = $input.data(__DEFAULT__.prefix + '-' + key); //获取规则的值
errorMsg = $input.data(__DEFAULT__.prefix + '-' + key + '-msg' ); //规则对应的提示信息
//如果当前input有这个规则,则执行这个规则
if (rule) {
//执行规则测试是否通过
var isPassed = fn.call($input, rule); //改变规则函数fn执行时候的this,指向当前input jquery对象
if (!isPassed) {
//未通过、则错误提示
$ this .showErrorTip.call($input, errorMsg);
}
}
});
});
//绑定提交表单的事件
this .on( 'submit' , function (e) {
var isFormPassed = true ;
$ this .$file.trigger($ this .initEvent);
$ this .$file.each( function (index, current){
var $current = $(current);
if ($current.siblings( '.validate-error-tip' ).is( ':visible' )){
isFormPassed = false ;
return false ;
}
});
if (!isFormPassed) {
return isFormPassed;
}
});
};
//扩展新的验证规则(实际上就是扩展上面__RULES__对象)
$.fn[pluginName].addRule = function (options) {
$.extend(__RULES__, options);
}
}, 'formValidate' );
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/wuzhe128520/article/details/89787798