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jQuery正则验证注册页面详解

小云云asal: 2018-01-10 09:40:403329semak imbas

本文主要介绍了jQuery正则验证注册页面功能,涉及针对用户名、密码、邮箱、手机号等的正则验证操作技巧,需要的朋友可以参考下，希望能帮助到大家。

本文实例讲述了jQuery正则验证注册页面功能。分享给大家供大家参考，具体如下：

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>正则验证注册页面</title>
  <style type="text/css">
    .red{
      color:#cc0000;
      font-weight:bold;
    }
  </style>
  <script type="text/javascript" src="js/jquery-1.8.3.js"></script>
  <script language="JavaScript">
    function $(elementId){
      return document.getElementById(elementId).value;
    }
    function pId(elementId){
      return document.getElementById(elementId);
    }
//    用户名验证
    function checkUser(){
      var user = $("user");
      var userId = pId("user_prompt");
      userId.innerHTML="";
      var reg=/^[a-zA-Z][a-zA-Z0-9]{3,15}$/;
      if(reg.test(user)==false){
          userId.innerHTML="用户名不正确";
        return false;
      }
      return true;
    }
//    password check
    function checkPwd(){
      var pwd = $("pwd");
      var pwdId = pId("pwd_prompt");
       pwdId.innerHTML="";
      var reg = /^[a-zA-Z0-9]{4,10}$/;
      if(reg.test(pwd)==false){
        pwdId.innerHTML = "密码不能含有非法字符，长度在4-10之间";
        return false;
      }
      return true;
    }
     function checkRepwd(){
       var repwd = $("repwd");
       var pwd = $("pwd");
       var repwdId = pId("repwd_prompt");
        repwdId.innerHTML=""
       if(pwd!=repwd){
         repwdId.innerHTML="两次密码不一致";
         return false;
       }
       return true;
     }
//   邮箱验证
    function checkEmail(){
      var email = $("email");
      var email_prompt = pId("email_prompt");
      email_prompt.innerHTML="";
      var reg = /^\w+@\w+(\.[a-zA-Z]{2,3}){1,2}$/;
       if(reg.test(email)==false){
         email_prompt.innerHTML="Email格式不对，请输入正确email";
         return false;
       }
      return true;
    }
//      手机号验证
    function checkMobile() {
      var mobile = $("mobile");
      var mobileId = pId("mobile_prompt");
      mobileId.innerHTML="";
      var reMobile = /^1\d{10}$/;
       if (reMobile.test(mobile)==false){
         mobileId.innerHTML="手机号输入有误";
         return false;
       }
      return true;
    }
//    生日验证
    function checkBirth(){
      var birth = $("birth");
      var birthId = pId("birth_prompt");
      birthId.innerHTML="";
      var reg = /^((19\d{2})|(200\d))-(0?[1-9]|1[0-2])-(0?[1-9]|[1-2]\d|3[0-1])$/;
      if(reg.test(birth)==false){
        birthId.innerHTML="生日格式不对";
        return false;
      }
      return true;
    }
  </script>
</head>
<body>
<table class="main" border="0" callpadding="0" cellspacing="0">
  <tr>
    <td><img src="images/logo.jpg" alt="logo"><img src="images/banner.jpg" alt="banner"></td>
  </tr>
  <tr>
    <td class="hr_1">新用户注册</td>
  </tr>
  <tr>
    <td style="height: 10px;"></td>
  </tr>
    <form action="" method="post" name="myform">
  <tr>
     <td><table>
       <tr>
         <td class="left">用户名：</td>
         <td class="center"><input type="text" id="user" class="in" onblur="checkUser()"></td>
         <td><p id="user_prompt">用户名由英文字母和数字组成-4到16位字符，以字母开头</p></td>
       </tr>
       <tr>
         <td class="left">密码：</td>
         <td class="center"><input type="password" id="pwd" class="in" onblur="checkPwd()"></td>
         <td><p id="pwd_prompt">密码由英文字母和数字组成的4-10位字符</p></td>
       </tr>
       <tr>
         <td class="left">确认密码：</td>
         <td class="center"><input type="password" id="repwd" class="in" onblur="checkRepwd()"></td>
         <td><p id="repwd_prompt"></p></td>
       </tr>
       <tr>
         <td class="left">电子邮箱：</td>
         <td class="center"><input type="text" id="email" class="in" onblur="checkEmail()"></td>
         <td><p id="email_prompt"></p></td>
       </tr>
       <tr>
         <td class="left">手机号码：</td>
         <td class="center"><input type="text" id="mobile" class="in" onblur="checkMobile()"></td>
         <td><p id="mobile_prompt"></p></td>
       </tr>
       <tr>
         <td class="left">生日：</td>
         <td class="center"><input type="text " id="birth" class="in" onblur="checkBirth()"></td>
         <td><p id="birth_prompt"></p></td>
       </tr>
       <tr>
         <td class="left"> </td>
         <td class="center"><input name="" type="image" src="images/register.jpg" /></td>
         <td> </td>
       </tr>
     </table>
     </td>
  </tr>
  </form>
</table>
</body>
</html>

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