仅仅是随手写的demo，大神们勿喷，有BUG别打我，谢谢。 废话说完，上代码：
前端代码： reg.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>无刷新注册</title>
<style>
#reg{width:400px;height: 300px;position: relative;margin:10px auto}
#reg label{float:right;position: relative;margin-top: 10px;font-size: 28px;}
#reg label input{width:250px;height: 40px;font-size: 24px;}
#reg #btn{width:120px;height: 40px;position: absolute;right: 65px;margin-top: 80px;}
#reg span{width:200px;position: absolute;right: -210px;font-size: 24px;}
#reg #user{top:20px;}
#reg #pass{top:75px;}
#reg #rep{top:130px;}
#reg #em{top:185px;}
.error{color:red;}
.ok{color:greenyellow;}
</style>
<script src="ajax.js"></script>
<script>
window.onload = function ()
{
//后台验证
bgProcess();
//提交注册信息，返回注册成功与否
$('btn').onclick = function ()
{
var jsonData = {username:$('username').value,passw:$('passw').value,
repassw:$('repassw').value,email:$('email').value};
ajax('regProccess.php',jsonData,getInfo,'json');
};
function getInfo(info)
{
var a = ['username','passw','repassw','email'];
var b = ['user','pass','rep','em'];
var flag = true;
for(var i =0;i<info.length;i++)
{
if(info[i].state == 'false')
{
flag = false;
displayInfo(info[i],b[i],a[i]); //显示错误信息
}
}
if(flag) alert('恭喜你注册成功');
}
};
//后台验证
function bgProcess()
{
//验证用户名
$('username').onblur = function ()
{
var jsonData = {username:this.value};
ajax('regProccess.php',jsonData,getUser,'json');
};
function getUser(msg)
{
displayInfo(msg[0],'user','username');
}
//验证密码
$('passw').onkeyup = $('passw').onblur= function ()
{
var jsonData = {passw:this.value};
ajax('regProccess.php',jsonData,getPass,'json');
};
function getPass(msg)
{
displayInfo(msg[1],'pass','passw');
}
//确认密码
$('repassw').onblur = function ()
{
var jsonData = {passw:$('passw').value,repassw:this.value};
ajax('regProccess.php',jsonData,getRepass,'json');
};
function getRepass(msg)
{
displayInfo(msg[2],'rep','repassw');
}
//验证邮箱
$('email').onblur= function ()
{
var jsonData = {email:this.value};
ajax('regProccess.php',jsonData,getEmail,'json');
};
function getEmail(msg)
{
displayInfo(msg[3],'em','email');
}
}
//显示信息
function displayInfo(msg,id,name)
{
$(id).className = (msg.state == 'true')?'ok':'error';
$(id).innerHTML = msg[name];
}
function $(id)
{
return document.getElementById(id);
}
</script>
</head>
<body>
<div id="reg">
<label>用户名:<input type="text" id="username" /></label><label></label><br /><br />
<label>密码:<input type="password" id="passw" /></label><br /><br />
<label>确认密码:<input type="password" id="repassw" /></label><br /><br />
<label>邮箱:<input type="text" id="email" /></label><br /><br />
<button id="btn">注册</button>
<span id="user"></span>
<span id="pass"></span>
<span id="rep"></span>
<span id="em"></span>
</div>
</body>
</html>
ajax的js文件： ajax.js:
/**
* Created by isle on 2017/11/10.
*/
/**
* @function 利用ajax动态交换数据
* @param url 要提交请求的页面
* @param jsonData 要提交的数据,利用Json传递
* @param getMsg 这个函数可以获取到处理后的数据
* @param type 接受的数据类型,text/xml/json
* @param tagName type = xml 的时候这个参数设置为要获取的文本的标签名
* @return 无
*/
function ajax(url,jsonData,getMsg,type,tagName)
{
//创建Ajax对象,ActiveXObject兼容IE5,6
var oAjax = window.XMLHttpRequest?new XMLHttpRequest():new ActiveXObject("Microsoft.XMLHTTP");
//打开请求
oAjax.open('POST',url,true);//方法,URL,异步传输
//发送请求
var data = '';
for(var d in jsonData) //拼装数据
data += (d + '=' +jsonData[d]+'&');
oAjax.setRequestHeader("Content-type","application/x-www-form-urlencoded");
oAjax.send(data);
//接收返回,当服务器有东西返回时触发
oAjax.onreadystatechange = function ()
{
if(oAjax.readyState == 4 && oAjax.status == 200)
{
if(type == 'text')
{
if(getMsg) getMsg(oAjax.responseText);
}
else if(type == 'json')
{
var json = eval('('+oAjax.responseText+')');//把传回来的字符串解析成json对象
//var json = JSON.parse(oAjax.responseText);//把传回来的字符串解析成json对象
if(getMsg)getMsg(json);
}
else if(type == 'xml')
{
var oXml = oAjax.responseXML; //返回的是一个XML DOM对象
var oTag = oXml.getElementsByTagName(tagName);
var tagValue = oTag[0].childNodes[0].nodeValue;
if(getMsg)getMsg(tagValue);
}
}
}
}
后端文件； regProccess.php
<?php
header("Access-Control-Allow-Origin: *");
header("Content-Type:text/html;charset=utf-8");
//禁用缓存,是为了数据一样的前提下还能正常提交，而不是缓存数据
header("Cache-Control:no-cache");
include('myFunc.php'); //包含我的函数库
$username = isset($_POST['username'])?$_POST['username']:''; //获取用户名
$passw =isset($_POST['passw'])?urlencode($_POST['passw']):''; //获取密码
$repassw = isset($_POST['repassw'])?urlencode($_POST['repassw']):''; //获取确认密码
$email = isset($_POST['email'])?$_POST['email']:''; //获取邮箱
$info='['; //存放返回页面的数据
$isSucceed = 0; //判断注册是否成功,如果最后结果为4，则意味着全部正确，注册成功
//1.验证用户名是否非法
$res1 = verifyUser($username);
if($res1[1])
$info.='{"username":"请输入用户名","state":"false"}';
else if($res1[0])
$info.='{"username":"用户名非法","state":"false"}';
else if($res1[2])
$info.='{"username":"用户名已存在","state":"false"}';
else
{
$info.='{"username":"用户名可用","state":"true"}';
++$isSucceed;
}
$info.=',';
//2.验证密码是否非法和强度
$res2 = verifyPassw($passw);
if($res2 == -1)
$info.='{"passw":"请输入密码","state":"false"}';
else if($res2 == 0)
$info.='{"passw":"密码非法","state":"false"}';
else
{
if($res2 == 1)
$info.='{"passw":"密码强度较弱","state":"true"}';
else if($res2 == 2)
$info.='{"passw":"密码强度中等","state":"true"}';
else if($res2 == 3)
$info.='{"passw":"密码强度较强","state":"true"}';
++$isSucceed;
}
$info.=',';
//3.确认密码
if(empty($repassw))
$info.='{"repassw":"请先输入密码","state":"false"}';
else if($passw == $repassw)
{
$info.='{"repassw":"密码一致","state":"true"}';
++$isSucceed;
}
else
$info.='{"repassw":"密码不一致","state":"false"}';
$info.=',';
//4.验证邮箱
$res3 = verifyEmail($email);
if($res3 == -1)
$info.='{"email":"请输入邮箱","state":"false"}';
else if($res3 == 0)
$info.='{"email":"邮箱非法","state":"false"}';
else if($res3 == 1)
$info.='{"email":"此邮箱已被注册","state":"false"}';
else if($res3 == 2)
{
$info.='{"email":"此邮箱可用","state":"true"}';
++$isSucceed;
}
//保存用户注册信息
if($isSucceed == 4)
saveRegInfo(array($username,$passw,$email));
echo $info.=']';
myFunc.php:
<?php
/**
* @function 验证用户名
* @param $username 用户名
* @return 返回一个$res数组，里面包含了错误代码,1:用户名非法，1：没有输入用户名，1：用户名存在
*/
header("Access-Control-Allow-Origin: *");
function verifyUser($username)
{
$res = array();
//匹配成功返回匹配次数，0表示没有匹配到,匹配字母、数字、下划线
if(preg_match("/^\\w{6,16}$/",$username) == 0)
$res[] = 1;
else
$res[] = 0;
if(empty($username))
$res[] = 1;
else
$res[] = 0;
if(verifyData($username,'name')) //验证该用户名是否被注册了
$res[] = 1;
else
$res[] = 0;
return $res;
}
/**
* @function 验证密码是否非法和密码强度
* @param $passw 密码
* @return $res 密码强度
*/
function verifyPassw($passw)
{
$reg1 = '/^[0-9]{8,16}$/'; //纯数字
$reg2 = '/^[a-zA-Z]{8,16}$/';//纯字母
$reg3 = '/^[a-zA-Z\+]{8,16}$/';//纯字母+
$reg4 = '/^[0-9a-zA-Z]{8,16}$/';//数字和字母组合
$reg5 = '/^[0-9a-zA-Z\+]{8,16}$/';//数字、’+‘和字母组合
$res;
if(empty($passw))
$res = -1;
else if(preg_match($reg1,$passw))
$res = 1;
else if(preg_match($reg2,$passw))
$res = 1;
else if(preg_match($reg3,$passw))
$res = 2;
else if(preg_match($reg4,$passw))
$res = 2;
else if(preg_match($reg5,$passw))
$res = 3;
else
$res = 0; //非法密码
return $res;
}
/**
* @function 验证邮箱是否非法和是否已经被注册使用
* @param $email 邮箱
* @return $res 错误代码
*/
function verifyEmail($email)
{
$reg = '/^([\w-*\.*])+@(\w-?)+(\.\w{2,})+$/';
$res;
if(empty($email))
$res = -1;
else if(verifyData($email,'email'))
$res = 1;
else if(preg_match($reg,$email))
$res = 2;
else
$res = 0; //非法邮箱
return $res;
}
/**
* @function 验证data是否已经存在
* @param $data
* @param $query
* @return data存在返回1，否则返回0
*/
function verifyData($data,$query)
{
//1.连接数据库
@$db = new MySQLi('your mysql ip','your mysql user','your mysql password','your mysql databaseName');
if(mysqli_connect_errno())
die("连接数据库失败");
//2.验证数据是否存在
$sql = "select $query from users where $query = '{$data}'";
$res = $db->query($sql);
if (!$res) {
die(sprintf("Error: %s", $db->error));
}
$row = $res->fetch_assoc();
//3.关闭数据库
$db->close();
return is_null($row)?0:1;
}
/**
* @function 保存注册用户信息
* @param $data 要保存的数据，一个数组
* @return bool $res 返回true表示信息保存成功，false表示失败
*/
function saveRegInfo($data)
{
//1.连接数据库
@$db = new MySQLi('your mysql ip','your mysql user','your mysql password','your mysql databaseName');
if(mysqli_connect_errno())
die("连接数据库失败");
//2.插入数据
$username=$data[0];
$password=$data[1];
$email=$data[2];
$GameSalt=$username.$password;
$GameSalt = md5($GameSalt);
$GameSalt = "0x".$GameSalt;
$ip=$_SERVER['REMOTE_ADDR'];
$sql="call adduser('$username',$GameSalt , '0', '0', '$ip', '0', '$email', '0', '0', '0', '0', '$password', '0', '0', '0', '0', $GameSalt)";
$res = $db->query($sql);
if (!$res) {
die(sprintf("Error: %s", $db->error));
}
//3.关闭数据库
$db->close();
return $res;
}