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Complete example of universal form validation plug-in implemented by JS_javascript skills

WBOY
Release： 2016-05-16 15:43:57
Original
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本文实例讲述了JS实现的通用表单验证插件。分享给大家供大家参考。具体如下：

这里演示一个通用的JS表单验证插件代码。使用方法：第一步：需设定表单项数据类型，第二步：实例表单验证，验证错误提示说明（程序有自带相关错误提示，可自定义每项验证错误提示时文本，只需添加msg）。

运行效果截图如下：

在线演示地址如下：

http://demo.jb51.net/js/2015/js-normal-table-check-plug-codes/

具体代码如下：

<!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>无标题文档</title>
<style> 
body,td{font:12px Verdana;color:#333}
input,textarea,select,td,th{font:12px Verdana;color:#333;border:1px solid #999;background:#fff}
table{border-collapse:collapse;}
th{font:bold 12px Verdana; text-align:right;padding:5px;}
td{padding:3px;line-height:1.8;}
input{height:20;}
textarea{width:80%;height:50px;overfmin:auto;}
form{display:inline}
/*输入框样式*/
input[type=text],input[type=password],textarea{border:1px solid #ccc;padding:2px;border-radius:1px;box-shadow:0 1px 2px rgba(0,0,0,0.1) inset;outline:medium none;line-height:25px;
-webkit-transition:all 0.15s ease-in 0s;
-moz-transition:all 0.15s ease-in 0s;
-o-transition:all 0.15s ease-in 0s;
font-family:"Microsoft YaHei",Verdana,Arial;
font-size:14px;
vertical-align:top;
}
input[type=text],input[type=password]{height:25px;}
input[type=text]:focus,input[type=password]:focus,textarea:focus{/*border-color:rgba(82,168,236,0.8);*/border-color:#52a8ec;box-shadow:0 1px 2px rgba(0,0,0,0.1) inset,0 0 5px rgba(82,168,236,0.6);outline:0 none;}
</style>
</head>
<body>
<h2>使用方法</h2>
<p>第一步：需设定表单项数据类型</p>
<p style="padding:10px;border:2px dashed #ea0; background-color:#ffe;"><input type="text" name="name" <strong style="color:#f00;">dataType="chinese[2,8]"</strong> /></p>
<p>第二步：实例表单验证</p>
<p style="padding:10px;border:2px dashed #ea0; background-color:#ffe;"><script type="text/javascript"><strong style="color:#f00;">new ValidatorForm(表单对象);</strong> </script></p>
<h3>dataType可选参数</h3>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
 <tr>
 <th colspan="3" style="text-align:left; background-color:#eee;">基础验证</th>
 </tr>
 <tr>
  <th>email</th>
  <td>Email地址</td>
  <td rowspan="11"><strong>均可配合中括号使用</strong>，例如<br />
  长度验证：chinese[1,10]　为限制只能输入1-10个全角字符，<strong>注：一个全角字符长度为2</strong><br />
  数字大小验证：number[18,26]　为限制只能输入18-26的数字<br />
  日期范围验证：date[1970-1-1,2012-12-12]　为限制1970-1-1至2012-12-12日期<br />
  <strong>上限及下限设定</strong><br />
  下限设定：chinese[1,]　至少输入1个或以上有效字符<br />上限设定：chinese[,6]　最多输入6个有效字符<br />number和date格式也类式</td>
 </tr>
 <tr>
  <th>tel</th>
  <td>电话：支持手机/固话，识别区号及全半角逗号分隔多项</td>
 </tr>
 <tr>
  <th>mobile</th>
  <td>手机号码</td>
 </tr>
 <tr>
  <th>url</th>
  <td>网址</td>
 </tr>
 <tr>
  <th>number</th>
  <td>数字</td>
 </tr>
 <tr>
  <th>english</th>
  <td>英文字母</td>
 </tr>
 <tr>
  <th>chinese</th>
  <td>全角字符</td>
 </tr>
 <tr>
  <th>username</th>
  <td>帐号：字母开头4-20位的字母数字加下划线组合</td>
 </tr>
 <tr>
  <th>password</th>
  <td>密码：4-20位字母数字或@!#$%^&*.~组合</td>
 </tr>
 <tr>
  <th>date</th>
  <td>日期</td>
 </tr>
 <tr>
  <th>length</th>
  <td>长度：格式“length[最小长度,最大长度]”</td>
 </tr>
 <tr>
  <th colspan="3" style="text-align:left; background-color:#eee;">其它验证</th>
 </tr>
 <tr>
  <th>Compare</th>
  <td colspan="2">值对比：格式“Compare[比较符比较对象,比较类型]”<br />
  比较符包括[>,>=,<,<=,!=,=]<br />
  比较对象为表单项name,当表单有同名name值多项时取第一项<br />
  比较类型可选值[text,number,date]分别为[字符比较,数字比较,日期比较]，留空时对当前项值自动识别后对比<br />
  例如Compare[=password]</td>
 </tr>
 <tr>
  <th>exec</th>
  <td colspan="2">自定义函数：格式“exec[函数名]” <br />
  传入当前输入框对象，返回json格式“{stat:结果[true/false],msg:提示文本,msgCss:样式[className],inCss:输入框样式[className]}”，stat为验证结果是否正确为必须返回项，其它项留空使用默认设置[inCss暂时未使用]
  <br /></td>
 </tr>
</table>
<h3>验证错误提示说明</h3>
<p>程序有自带相关错误提示，可自定义每项验证错误提示时文本，只需添加msg</p>
<p style="padding:10px;border:2px dashed #ea0; background-color:#ffe;"><input type="text" name="name" dataType="chinese[2,8]" <strong style="color:#f00;">msg="姓名必需填写1-4个汉字"</strong> /></p>
<form name="theForm" id="theForm" action="" method="get">
 <h2>表单验证示例</h2>
 <table align="center" width="100%">
 <tr>
  <td>真实姓名：</td><td><input type="text" name="Name" dataType="chinese[1,]" /><span msgbox="1">请输入真实姓名</span>
  <span id="vfMsgBox_Name"></span>
  </td>
 </tr>
 <tr>
  <td>英文名：</td><td><input type="text" name="Nick" dataType="english[1,10]" /></td>
 </tr>
 <tr>
  <td>主页：</td><td><input type="text" name="Homepage" dataType="url" /></td>
 </tr>
 <tr>
  <td>密码：</td><td><input name="password" type="text" dataType="password" /></td>
 </tr>
 <tr>
  <td>重复：</td><td><input name="password2" type="text" dataType="Compare[=password'密码]" /></td>
 </tr>
 <tr>
  <td>信箱：</td><td><input type="text" name="email" dataType="email[1,]" /></td>
 </tr>
 <tr>
  <td>信箱：</td><td><input type="text" name="email2" dataType="email Compare[=email'信箱]" /></td>
 </tr>
 <tr>
  <td>邮编：</td><td><input type="text" name="QQ" dataType="number[100000,999999]" /></td>
 </tr>
 <tr>
  <td>日期：</td><td><input type="text" name="date" dataType="date" />
  <input type="text" name="date2" dataType="Compare[>date'起始日期,date]" />
  </td>
 </tr>
 <tr>
  <td>年龄：</td><td><input type="text" name="Year" dataType="number[18,28]" /></td>
 </tr>
 <tr>
  <td>年龄1：</td><td><input type="text" name="Year1" dataType="number[,18]" /></td>
 </tr>
 <tr>
  <td>电话：</td><td><input type="text" name="Phone" dataType="tel" /></td>
 </tr>
 <tr>
  <td>手机：</td><td><input type="text" name="mobile" dataType="mobile" /></td>
 </tr>
 <tr>
  <td>生日：</td><td><input type="text" name="Birthday" dataType="date[1980-1-1,2012-5-20]" /></td>
 </tr>
 <tr>
  <td>自我介绍：</td><td><textarea name="Description" style="width:99%;" dataType="length[0,150] exec[testFunction]">中文是一个字</textarea>
  <span>自定义验证程序,长度大于50触发自定义错误及样式，长度大于150系统自带错误</span>
  </td>
 </tr>
 <tr>
  <td colspan="2"><input name="Submit" type="submit" value="确定提交"></td>
 </tr>
 </table>
</form>
<style type="text/css"> 
/*输入项样式*/
input.vf_inCorrect,textarea.vf_inCorrect{box-shadow:0 1px 2px rgba(3,139,0,0.2) inset;border-color:#90b983;color:#2d7c14;}
input.vf_inError,textarea.vf_inError{box-shadow:0 1px 2px rgba(139,23,0,0.2) inset,0 0 5px rgba(139,23,0,0.6);border-color:#d46060;color:#b40000;}
.vf_Normal,.vf_Correct,.vf_Error,.vf_Focus{vertical-align:middle;display:inline-block;padding:3px;font-size:12px;margin-left:5px; background:#eee;}
.vf_Normal{color:#777;}
.vf_Focus{color:#000;}/*提示*/
.vf_Correct{color:#20800d;display:none;}/*验证通过*/
.vf_Error{color:#f00;}/*错误*/
/*自定义样式*/
input.inTestClass,textarea.inTestClass{box-shadow:0 0 2px rgba(0,0,0,0.3) inset,0 0 5px rgba(139,23,0,0.6);border-color:#00f;color:#eee;background-color:#333;}
.TestClass_OK{color:#fff;background-color:#080;}
.TestClass_Err{color:#fff;background-color:#c00;}
</style>
<script type="text/javascript"> 
//添加事件
function addEvent(o,e,f){
 if(window.attachEvent){o.attachEvent("on"+e,f)}else if(window.addEventListener){o.addEventListener(e,f,false);}else{o["on"+e]=f;}
}
//取消事件
function removeEvent(o,e,f){
 if(window.detachEvent){o.detachEvent("on"+e,f);}else if(window.removeEventListener){o.removeEventListener(e,f,false);}else{o["on"+e]=null;}
}
// class是否存在
function hasClass(obj,sClass){var reg = new RegExp("(^|\\s)" + sClass + "(\\s|$)");return reg.test(obj.className)}
//阻止浏览器的默认行为
function stopDefault(e){if(e&&e.preventDefault){e.preventDefault();}else{window.event.returnValue=false;}return false;}
//阻断事件冒泡
function stopBubble(e){if(e&&e.stopPropagation){e.stopPropagation();}else{window.event.cancelBubble=true;}}
function GetID(s){return document.getElementById(s);}
//创建元素
function creElm(o,pN,t){
 var tmp=document.createElement(t||'div'),p;
 for(p in o){tmp[p]=o[p];}
 return pN&#63;pN.appendChild(tmp):document.body.appendChild(tmp);
}
//计算字符串长度[全角算2长度]
function strLength(str){return str.replace(/[^\x00-\xff]/g,"**").length;}
function SetCss(o,k,s){
 var c=o.className.split(' '),n=0,nCSS='';
 for(var i=0;i<c.length;i++)
 {
  if(c[i]!=k){nCSS+=(nCSS=='')&#63;c[i]:' '+c[i];}
  else{n=1;}
 }
 if(s=='add'){nCSS+=(nCSS=='')&#63;k:' '+k;}
 o.className=nCSS;
}
//自定义验证函数
function testFunction(o){
 var val=o.value,len=Math.floor(strLength(val));
 return {stat:len<50,msg:'已输入<strong>'+len+'</strong>个字符；',msgCss:(len<50&#63;'TestClass_OK':'TestClass_Err'),inCss:null};
}
function ValidatorForm(f,Stat,Validator){
 var vf=this;
 //正则,最小值,最大值,提示消息
 this.Validator={
  email:[/^(\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*)&#63;$/,0,0,'Email地址填写错误'],
  tel:[/^((0&#63;1[358]\d{9})[,，]&#63;|((0(10|2[0-9]{1}|[3-9]{1}\d{2})[-_－—]&#63;)&#63;\d{7,8})[,，]&#63;)*$/,0,0,'电话号码填写错误'],
  mobile:[/^(0&#63;1[358]\d{9})*$/,0,12,'手机号码填写错误'],
  url:[/^(http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\&#63;%\-&_~`@[\]\':+!]*([^<>\"\"])*)&#63;$/,0,0,'网址填写错误'],
  number:[/^\d*$/,0,0,'只能填写数字格式'],
  english:[/^[A-Za-z]*$/,0,0,'只能输入半角英文字母'],
  chinese:[/^[\u0391-\uFFE5]*$/,0,0,'只能输入全角中文'],
  username:[/^[a-zA-Z]{1}\w*$/,4,20,'帐号需由字母开头的4-20位字母、数字或下划线组成'],
  password:[/^[\@A-Za-z0-9\!\#\$\%\^\&\*\.\~]*$/,4,20,'密码长度4-20,请勿输入特殊字符'],
  date:[/^((\d{4})[\-|\.|\/](\d{1,2})[\-|\.|\/](\d{1,2}))&#63;$/,'','','请填写如2012-1-1格式日期！'],
  Compare:[/^[\s\S]*$/,0,0,''],
  length:[/^[\s\S]*$/,0,0,''],
  exec:[/^[a-zA-Z]{1}\w*$/,0,0,'']
 }
 //消息Box样式及框入框样式
 this.Stat={
  tag:'span',     //提示文本标签
  msgNormal:'vf_Normal',  //正常样式
  msgCorrect:'vf_Correct', //正确
  msgError:'vf_Error',  //错误
  msgFocus:'vf_Focus',  //焦点
  inCorrect:'vf_inCorrect', //文本框正确
  inError:'vf_inError',  //错误
  inFocus:'vf_inFocus'  //焦点
 }
 if(Validator){for(var i in this.Validator){this.Validator[i]=Validator[i]!==undefined&#63;Validator[i]:this.Validator[i];}}
 if(Stat){for(var i in this.Stat){this.Stat[i]=Stat[i]!==undefined&#63;Stat[i]:this.Stat[i];}}
 this.Form=f;
 var fn=f.elements.length,i,j,_dataType;
 for(i=0;i<fn;i++){
  _dataType=f.elements[i].getAttribute('dataType');
  _dataType=_dataType&#63;_dataType.split(' '):[];
  for(j=0;j<_dataType.length;j++)
  {
   if(this.Validator[_dataType[j].split('[')[0]]){
    f.elements[i].onblur=(function(o){return function(){vf.CheckData(o);}})(f.elements[i]);
    if(f.elements[i].tagName.toUpperCase()=='TEXTAREA'){
     f.elements[i].onkeyup=(function(o){
      return function(){
       var MsgTag=vf.GetMsgBox(o);
       MsgTag.innerHTML='已输入<strong>'+Math.floor(strLength(o.value))+'</strong>个字符；';
      }
     })(f.elements[i]);
    }
   }
  }
 }
 //提交表单
 this.submit=function(e){
  var fn=vf.Form.elements.length,i,j,_Err=0,_Focus,_Msg='',t,_dataType;
  for(i=0;i<fn;i++){
   _dataType=f.elements[i].getAttribute('dataType');
   _dataType=_dataType&#63;_dataType.split(' '):[];
   for(j=0;j<_dataType.length;j++)
   {
    if(vf.Validator[_dataType[j].split('[')[0]]){
     t=vf.CheckData(f.elements[i]);
     if(t&&t[0]==false){
      _Err++;
      if(!_Focus){_Focus=f.elements[i];}
      _Msg+='\n'+f.elements[i].name+' '+t[1];
      break;
     }
    }
   }
  }
  if(_Err>0){
   e&&stopDefault(e);
   //_Msg //提示文本不完善，未使用，直接提示错误数量
   alert('共有'+_Err+'项填写错误！');
   _Focus.focus();
  }
 }
 addEvent(f,'submit',vf.submit);
}
ValidatorForm.prototype={
 //验证内容是否正确
 CheckData:function(o){
  var _dataType=o.getAttribute('dataType'),i,s=true,_Msg='',_msgCss,_inCss,_mdt,min,max,_dt;
  _dataType=_dataType&#63;_dataType.split(' '):[];
  for(i=0;s&&i<_dataType.length;i++){
   if(this.Validator[_dataType[i].split('[')[0]]){
    _dt=_dataType[i].split('[')[0];
    //自定义验证函数
    if(_dt=='exec'){
     _mdt=_dataType[i].match(/^exec\[([a-zA-Z]{1}\w*)\]$/);
//     alert(typeof(eval(_mdt[1])))
     if(_mdt==null){return false;}
     try 
     { 
      if(typeof(eval(_mdt[1]))=="function") 
      {
       /*
       自定义函数返回json
       stat:结果[true/false],msg:提示文本,msgCss:样式[className],inCss:输入框样式[className]
       */
       var _exec=eval(_mdt[1])(o);
       s=s&&_exec.stat;
       var MsgTag=this.GetMsgBox(o);
       _Msg=_exec.msg||'';
       if(_exec.msgCss){_msgCss=_exec.msgCss;}
//       if(_mdt.inCss){_inCss=_mdt.inCss;}
      }
     }
     catch(e)
     {
      alert('not function');
      return false;
     } 
    }
    //值对比
    else if(_dt=='Compare'){
     _mdt=_dataType[i].match(/^Compare\[(=|!=|>|>=|<|<=)([^,]+),&#63;(number|text|date)&#63;\]$/);
     if(_mdt==null){return false;}
 //    alert(_mdt);
     _mdt[2]=(_mdt[2]+'\'').split('\'');
     if(_mdt[2][1]==''){_mdt[2][1]=_mdt[2][0];}
     if(!this.Form[_mdt[2][0]]||this.Form[_mdt[2][0]].value==''){return false;}
     var v2=this.Form[_mdt[2][0]].length>1&#63;this.Form[_mdt[2][0]][0].value:this.Form[_mdt[2][0]].value;
     s=s&&this.Check_Compare(o.value,_mdt[1],v2,_mdt[3]);
     //生成提示文本
     var cc;
     switch (_mdt[1]){
     case ">": cc='大于';break;
     case ">=": cc='大于或等于';break;
     case "<": cc='小于';break;
     case "<=": cc='小于或等于';break;
     case "!=": cc='不一至';break;
     default: cc='一至';
     }
     if(!s){_Msg=(_mdt[1]=='='||_mdt[1]=='!=')&#63;'必须和'+_mdt[2][1]+cc:'必须'+cc+_mdt[2][1];}
    }
    //日期格式验证
    else if(_dt=='date'){
     _mdt=_dataType[i].match(/^date\[(\d{4}[\-|\.|\/]\d{1,2}[\-|\.|\/]\d{1,2})&#63;,(\d{4}[\-|\.|\/]\d{1,2}[\-|\.|\/]\d{1,2})&#63;\]$/);
     if(_mdt==null){s=s&&this.Validator[_dt][0].test(o.value);}
     else{
      min=_mdt&#63;_mdt[1]:this.Validator[_dt][1];
      max=_mdt&#63;_mdt[2]:this.Validator[_dt][2];
      s=s&&this.Validator[_dt][0].test(o.value)&&this.Check_Date(o.value,min,max);
     }
    }
    //其它类型验证
    else{
     _mdt=_dataType[i].match(/^([^[]+)\[(\d*),(\d*)\]$/);
     min=_mdt&#63;_mdt[2]:this.Validator[_dt][1];
     max=_mdt&#63;_mdt[3]:this.Validator[_dt][2];
     s=s&&this.Validator[_dt][0].test(o.value);
     if(s){s=s&&this.Check_Num((_dt=='number'&#63;o.value-0:strLength(o.value)),min,max);}
     else{_Msg=this.Validator[_dt][3];}
    }
    //生成提示文本
    if(_Msg==''&&!s)
    {
     if(min||max){
      if(_dt=='number'){
       _Msg=min&&max&#63;'只能输入'+min+'-'+max+'范围数字':min&#63;'只能输入大于'+min+'数字':'只能输入小于'+max+'数字';
      }
      else if(_dt=='date'){
       _Msg=min&&max&#63;'只能输入'+min+'至'+max+'范围日期':min&#63;'只能输入大于'+min+'日期':'只能输入小于'+max+'日期';
      }
      else{
       _Msg=min&&max&#63;'需输入'+min+'-'+max+'个有效字符':min&#63;'至少需输入'+min+'个有效字符':'最多只能输入'+max+'个有效字符';
      }
     }else{_Msg=this.Validator[_dt][3];}
    }
   }
  }
  if(s){this.AddCorrect(o,{msg:_Msg,msgCss:_msgCss,inCss:_inCss});}else{this.AddError(o,{msg:_Msg,msgCss:_msgCss,inCss:_inCss});}
  return [s,_Msg];
 },
 //验证正确
 AddCorrect:function(o,s){
  var MsgTag=this.GetMsgBox(o);
  MsgTag.innerHTML=s.msg||'';
  this.vfSetCss(MsgTag,s.msgCss||this.Stat.msgCorrect,1);
  this.vfSetCss(o,s.inCss||this.Stat.inCorrect,0);
 },
 //验证错误
 AddError:function(o,s){
  var MsgTag=this.GetMsgBox(o);
  MsgTag.innerHTML=o.getAttribute('msg')||s.msg;
  this.vfSetCss(MsgTag,s.msgCss||this.Stat.msgError,1);
  this.vfSetCss(o,s.inCss||this.Stat.inError,0);
 },
 //获取/创建提示Box
 GetMsgBox:function(o){
  var MsgTag=GetID('vfMsgBox_'+o.name);
  if(!MsgTag){
   MsgTag=o.nextSibling;
   while(MsgTag&&MsgTag.nodeType!=1){MsgTag=MsgTag.nextSibling;}
   if(!MsgTag||MsgTag.tagName.toUpperCase()!=this.Stat.tag.toUpperCase()||!MsgTag.getAttribute('msgbox')){
    MsgTag=creElm({},o.parentNode,this.Stat.tag);
    MsgTag.setAttribute('msgbox','1');
    if(o.nextSibling.nextSibling){o.parentNode.insertBefore(MsgTag,o.nextSibling);}
   }
  }
  return MsgTag;
 },
 //验证值范围
 Check_Num:function(v,min,max){
  v=v||0;
  if(min&&max){return v>=min-0&&v<=max-0;}
  else if(min){return v>=min-0;}
  else if(max){return v<=max-0;}
  return true;
 },
 //值对比
 //值,逻辑运算,对比值,对比类型[number-数字,date-日期,text-文本]
 Check_Compare:function(v,operator,v2,DataType){
  //为空时自动判断格式
  if(!DataType){
   if(this.Validator.number[0].test(v)){DataType='number';}
   else if(this.Validator.date[0].test(v)){DataType='date';}
   else{DataType='text'}
  }
  //数据格式转换
  if(DataType=='number'){v-=0;v2-=0;}
  else if(DataType=='date'){
   var _mdt=v.match(this.Validator.date[0]);
   if(_mdt==null){return false;}
   v=new Date(_mdt[2],_mdt[3]-1,_mdt[4])-new Date;
   _mdt=v2.match(this.Validator.date[0]);
   if(_mdt==null){return false;}
   v2=new Date(_mdt[2],_mdt[3]-1,_mdt[4])-new Date;
  }
  switch (operator){
  case ">": return v>v2;break;
  case ">=": return v>=v2;break;
  case "<": return v<v2;break;
  case "<=": return v<=v2;break;
  case "!=": return v!=v2;break;
  default: return v==v2;
  }
 },
 //日期验证范围
 Check_Date:function(v,min,max){
  var _mdt=v.match(this.Validator.date[0]);
  if(_mdt==null){return false;}
  v=new Date(_mdt[2],_mdt[3]-1,_mdt[4])-new Date;
  _mdt=min.match(this.Validator.date[0]);
  min=_mdt==null&#63;null:new Date(_mdt[2],_mdt[3]-1,_mdt[4])-new Date;
  _mdt=max.match(this.Validator.date[0]);
  max=_mdt==null&#63;null:max=new Date(_mdt[2],_mdt[3]-1,_mdt[4])-new Date;
  return this.Check_Num(v,min,max);
 },
 //设置样式
 vfSetCss:function(o,css,s){
  if(!s){
   SetCss(o,this.Stat.inCorrect,'del');
   SetCss(o,this.Stat.inError,'del');
   SetCss(o,this.Stat.inFocus,'del');
  }
  if(s){o.className=css;}else{SetCss(o,css,'add');}
 }
}
new ValidatorForm(GetID('theForm'));
</script>
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