JS实现注册界面表单校验

2022-08-26 10:11:48 来源：易采站长站作者：
本文实例为大家分享了JS实现注册界面表单校验的具体代码，供大家参考，具体内容如下设计效果：源码：!DOCTYPEhtmlhtmlheadmetacharset=utf-8...
本文实例为大家分享了js实现注册界面表单校验的具体代码，供大家参考，具体内容如下
设计效果：
JS实现注册界面表单校验
源码：
<!DOCTYPE html>
<html>
 <head>
  <meta charset="utf-8">
  <title></title>
  <style type="text/css">
   * {
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
   }

   body {
    background: url(img/register_bg2.png)
     /* no-repeat center */
    ;

   }

   .rg_layout {
    width: 900px;
    height: 500px;
    border: 8px solid #EEEEEE;
    background-color: white;
    /* 让div水平居中 */
    margin: auto;
    margin-top: 90px;
   }

   .rg_left {
    /* border: 1px solid red; */
    float: left;
    margin: 15px;
   }

   .rg_left>p:first-child {
    color: #FFD026;
    font-size: 20px;
   }

   .rg_left>p:last-child {
    color: #A6A6A6;
    font-size: 20px;
   }

   .rg_center {
    /* border: 1px solid red; */
    float: left;
    margin-top: 20px;
   }

   .rg_right {
    /* border: 1px solid red; */
    float: right;
    margin: 15px;
   }

   .rg_right>p:first-child {
    font-size: 15px;
   }

   .rg_right p a {
    color: pink;
   }

   .td_left {
    width: 100px;
    text-align: right;
    height: 45px;
   }

   .td_right {
    padding-left: 50px;
   }

   #username,
   #password,
   #email,
   #name,
   #tel,
   #birthday,
   #checkcode {
    width: 251px;
    height: 32px;
    border: 1px solid #A6A6A6;
    /* 设置边框圆角 */
    border-radius: 5px;
    padding-left: 10px;
   }

   #checkcode {
    width: 110px;
   }

   #img_check {
    height: 32px;
    vertical-align: middle;
   }

   #btn_sub {
    width: 150px;
    height: 40px;
    background-color: #FFD026;
    border: 1px solid #FFD026;
   }

   .error {
    color: #FF0000;
   }

   #td_sub {
    padding-left: 150px;
   }
  </style>

  <script type="text/Javascript">
   /*
    分析:
     1.给表单绑定onsubmit事件。监听器中判断每一个方法校验的结果。
      * 如果都为true，则监听器方法返回true
      * 如果有一个为false，则监听器方法返回false
     2.定义一些方法分别校验各个表单项。
     3.给各个表单项绑定onblur事件
    
    */

   window.onload = function() {
    //1.给表单绑定onsubmit事件
    document.getElementById("form").onsubmit = function() {
     //调用用户校验方法 checkUsername();
     //调用密码校验方法 checkPassword();
     //return checkUsername() && checkPassword();

     return checkUsername() && checkPassword() && checkEmail() && checkName() && checkTel();
    }

    //给文本输入框分别绑定离焦事件
    document.getElementById("username").onblur = checkUsername;
    document.getElementById("password").onblur = checkPassword;
    document.getElementById("email").onblur = checkEmail;
    document.getElementById("name").onblur = checkName;
    document.getElementById("tel").onblur = checkTel;


   }

   //校验用户名
   function checkUsername() {
    //1.获取用户名的值
    var username = document.getElementById("username").value;

    //2.定义正则表达式
    var reg_username = /^\w{6,12}$/;

    //3.判断值是否符合正则的规则
    var flag = reg_username.test(username);

_{php    //4.提示信息
    var s_username = document.getElementById("s_username");

    if (flag) {
     //提示绿色对勾
     s_username.innerHTML = "<img width='35' height='25' src='img/gou.png'/>";
    } else {
     //提示红色用户名有误
     s_username.innerHTML = "用户名格式有误！";
    }
    return flag;
   }


   //校验密码
   function checkPassword() {
    //1.获取用户名的值
    var password = document.getElementById("password").value;

    //2.定义正则表达式
    var reg_password = /^\w{6,12}$/;

    //3.判断值是否符合正则的规则
    var flag = reg_password.test(password);

    //4.提示信息
    var s_password = document.getElementById("s_password");

    if (flag) {
     //提示绿色对勾
     s_password.innerHTML = "<img width='35' height='25' src='img/gou.png'/>";
    } else {
     //提示红色用户名有误
     s_password.innerHTML = "密码格式有误！";
    }
    return flag;
   }

   //检验邮箱
   function checkEmail() {
    var email = document.getElementById("email").value;

    var reg_email = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/;

    var flag = reg_email.test(email);

    var s_email = docu^{pythonment.getElementById("s_email");

    if (flag) {
     s_email.innerHTML = "<img width='35' height='25' src='img/gou.png'/>";
    } else {
     s_email.innerHTML = "邮箱格式有误！";
    }
    return flag;
   }

   //姓名校验
   function checkName() {
    var name = document.getElementById("name").value;

    var reg_name = /^[\u4E00-\u9FA5\uf900-\ufa2ds]{2,20}$/;

    var flag = reg_name.test(name);

    var s_name = document.getElementById("s_name");

    if (flag) {
     s_name.innerHTML = "<img width='35' height='25' src='img/gou.png'/>";
    } else {
     s_name.innerHTML = "姓名格式有误！";
    }
    return flag;
   }

   //校验手机号
   function checkTel() {
    var tel = document.getElementById("tel").value;

    var reg_tel = /^1(3|4|5|6|7|8|9)\d{9}$/;

    var flag = reg_tel.test(tel);

    var s_tel = document.getElementById("s_tel");

    if (flag) {
     s_tel.innerHTML = "<img width='35' height='25' src='img/gou.png'/>";
    } else {
     s_tel.innerHTML = "手机号格式有误！";
    }
    return flag;
   }
  </script>
 </head>
 <body>

  <div class="rg_layout">
   <div class="rg_left">
    <p>新用户注册</p>
    <p>USER REGISTER</p>
   </div>

   <div class="rg_center">
    <div class="rg_form">
     <!-- 定义表单 -->
     <form action="#" id="form" method="get">
      <table>
       <tr>
        <td class="td_left"><label for="username">用户名</label></td>
        <td class="td_right">
         <input type="text" name="username" id="username" placeholder="请输入用户名">
         <span id="s_username" class="error">

         </span>
        </td>
       </tr>

       <tr>
        <td class="td_left"><label for="password">密码</label></td>
        <td class="td_right">
         <input type="password" name="password" id="password" placeholder="请输入密码">
         <span id="s_password" class="error">

         </span>
        </td>
       </tr>

       <tr>
        <td class="td_left"><label for="email">Email</label></td>
        <td class="td_right">
         <input type="email" name="email" id="email" placeholder="请输入邮箱">
         <span id="s_email" class="error">

         </span>
        </td>
       </tr>

       <tr>
        <td class="td_left"><label for="name">姓名</label></td>
        <td class="td_right">
         <input type="text" name="name" id="name" placeholder="请输入姓名">
         <span id="s_name" class="error">

         </span>
        </td>
       </tr>

       <tr>
        <td class="td_left"><label for="tel">手机号</label></td>
        <td class="td_right">
         <input type="text" name="tel" id="tel" placeholder="请输入手机号">
         <span id="s_tel" class="error">

         </span>
        </td>
       </tr>

       <tr>
        <td class="td_left"><label>性别</label></td>
        <td class="td_right">
         <input type="radio" name="gender" value="male" checked=""> 男
         <input type="radio" name="gender" value="female"> 女
        </td>
       </tr>

       <tr>
        <td class="td_left"><label for="birthday">出生日期</label></td>
        <td class="td_right"><input type="date" name="birthday" id="birthday" placeholder="请输入出生日期"></td>
       </tr>

       <tr>
        <td class="td_left"><label for="checkcode">验证码</label></td>
        <td class="td_right"><input type="text" name="checkcode" id="checkcode" placeholder="请输入验证码">
         <img id="img_check" src="img/verify_code.jpg">
        </td>
       </tr>

       <tr>
        <td colspan="2" id="td_sub"><input type="submit" id="btn_sub" value="注册"></td>
www.cppcns.com       </tr>
      </table>
     </form>

    </div>

   </div>

   <div class="rg_right">
    <p>已有账号<a href="#" rel="external nofollow" >立即登录</a></p>
   </div>
  </div>

 </body>
</html>}}
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