您的位置：首页 > 其它
简单的注册模块表单验证处理

2015-04-10 13:13 501 查看
一个注册框进行表单验证处理

如图
<!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 charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Register</title>
<meta name="description" content="">
<meta name="keywords" content="">
<link href="" rel="stylesheet">
<style type="text/css">
body{margin:0;padding: 0;}
.login{position:relative;margin:100px auto;padding:50px 20px;width: 350px;height: 200px;border:1px solid #333;}
.login legend{font-weight: bold;color: green;text-align: center;}
.login label{display:inline-block;width:130px;text-align: right;}
.btn{height: 30px;width:100px;padding: 5px;border:0;background-color: #00dddd;font-weight: bold;cursor: pointer;float: right;}
input{height: 20px;width: 170px;}
.borderRed{border: 2px solid red;}
img{display: none;}
</style>
</head>
<body>
<div class="login">
<form name="form" method="post" action="register.php" onsubmit="return check()">
<legend>【Register】</legend>
<p><label for="name">UserName: </label>
<input type="text" id="name" >
<img src="./img/gou.png" width="20px" height="20px"></p>
<p><label for="password">Password: </label>
<input type="password" id="password" >
<img src="./img/gantan.png" width="20px" height="20px"></p>
<p><label for="R_password">Password Again: </label>
<input type="password" id="R_password" >
<img src="./img/gou.png" width="20px" height="20px"></p>
<p><label for="email">Email: </label>
<input type="text" id="email" >
<img src="./img/gou.png" width="20px" height="20px"></p>
<p><input type="submit" value="Register" class="btn"></p>
</form>
</div>
<script type="text/javascript">
function hasClass(obj,cls){    // 判断obj是否有此class
return obj.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'));
}
function addClass(obj,cls){  //给 obj添加class
if(!this.hasClass(obj,cls)){
obj.className += " "+cls;
}
}
function removeClass(obj,cls){  //移除obj对应的class
if(hasClass(obj,cls)){
var reg = new RegExp('(\\s|^)' + cls + '(\\s|$)');
obj.className = obj.className.replace(reg," ");
}
}

function checkName(name){   //验证name
if(name != ""){  //不为空则正确，当然也可以ajax异步获取服务器判断用户名不重复则正确
removeClass(ele.name,"borderRed");  //移除class
document.images[0].setAttribute("src","./img/gou.png"); //对应图标
document.images[0].style.display = "inline"; //显示
return true;
}else{  //name不符合
addClass(ele.name,"borderRed"); //添加class
document.images[0].setAttribute("src","./img/gantan.png"); //对应图标
document.images[0].style.display = "inline"; //显示
return false;
}
}
function checkPassw(passw1,passw2){  //验证密码
if(passw1 == "" || passw2 == "" || passw1 !== passw2){  //两次密码输入不为空且不等  不符合
addClass(ele.password,"borderRed");
addClass(ele.R_password,"borderRed");
document.images[1].setAttribute("src","./img/gantan.png");
document.images[1].style.display = "inline";
document.images[2].setAttribute("src","./img/gantan.png");
document.images[2].style.display = "inline";
return false;
}else{    //密码输入正确
removeClass(ele.password,"borderRed");
removeClass(ele.R_password,"borderRed");
document.images[1].setAttribute("src","./img/gou.png");
document.images[1].style.display = "inline";
document.images[2].setAttribute("src","./img/gou.png");
document.images[2].style.display = "inline";
return true;
}
}
function checkEmail(email){   //验证邮箱
var pattern =  /^([\.a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
if(!pattern.test(email)){  //email格式不正确
addClass(ele.email,"borderRed");
document.images[3].setAttribute("src","./img/gantan.png");
document.images[3].style.display = "inline";
ele.email.select();
return false;
}else{  //格式正确
removeClass(ele.email,"borderRed");
document.images[3].setAttribute("src","./img/gou.png");
document.images[3].style.display = "inline";
return true;
}
}

var ele = {  //存放各个input字段obj
name: document.getElementById("name"),
password: document.getElementById("password"),
R_password: document.getElementById("R_password"),
email: document.getElementById("email")
};
ele.name.onblur = function(){  //name失去焦点则检测
checkName(ele.name.value);
}
ele.password.onblur = function(){ //password失去焦点则检测
checkPassw(ele.password.value,ele.R_password.value);
}
ele.R_password.onblur = function(){ //R_password失去焦点则检测
checkPassw(ele.password.value,ele.R_password.value);
}
ele.email.onblur = function(){ //email失去焦点则检测
checkEmail(ele.email.value);
}

function check(){   //表单提交则验证开始
var ok = false;
var nameOk = false;
var emailOk = false;
var passwOk = false;

if(checkName(ele.name.value)){ nameOk = true; }   //验证name
if(checkPassw(ele.password.value,ele.R_password.value)){ passwOk = true; } //验证password
if(checkEmail(ele.email.value)){ emailOk = true; }   //验证email

if(nameOk && passwOk && emailOk){
alert("Tip: Register Success ..");   //注册成功
//return true;
}
return false;   //有误，注册失败
}
</script>
</body>
</html>
View Code
内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理
标签：
相关文章推荐
新的分享
章节导航