JSONP实现登录(pdo预处理)
Posted jiangshiguo
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了JSONP实现登录(pdo预处理)相关的知识,希望对你有一定的参考价值。
<!DOCTYPE html> <html> <head> <title>登录</title> <meta charset="utf-8"> </head> <body> <input type="text" name="username" class=‘username‘ placeholder="请输入账号"> <span class="s1"></span> <br> <input type="password" name="password" class=‘password‘ placeholder="请输入密码"> <span class="s2"></span> <br> <input type="submit" class="submit" value="登录"> </body> </html> <script src=‘jquery-3.3.1.min.js‘></script> <script> $(‘.submit‘).click(function() var username = $(‘.username‘).val(); var password = $(‘.password‘).val(); if(username.length==0) $(‘.s1‘).html("<font color=‘red‘>账号不能为空</font>"); return false; var reg = /^[a-zA-Z]6$/; if(reg.test(username)==false) $(‘.s1‘).html("<font color=‘red‘>账号必须是6位数字母</font>"); return false; $(‘.s1‘).html("<font color=‘green‘>检测合格</font>"); if(password.length==0) $(‘.s2‘).html("<font color=‘red‘>密码不能为空</font>"); return false; var pass_reg = /^\w3,$/; if(pass_reg.test(password)==false) $(‘.s2‘).html("<font color=‘red‘>密码最少3位数</font>"); return false; $(‘.s2‘).html("<font color=‘green‘>检测合格</font>"); $.ajax( url:‘login.php‘, type:‘post‘, dataType:‘jsonp‘, jsonpCallback:‘Liyue‘,//处理后台返回的数据 data: username:username, password:password , success:function() console.log(‘请求完成‘); ) ) function Liyue(data) alert(data.msg); </script>
php代码:
<?php header("Content-type:text/html;charset=utf-8"); //接收传值 $username = $_POST[‘username‘]; $password = $_POST[‘password‘]; //接收回调函数 $callback = $_GET[‘callback‘]; $pdo = new PDO(‘mysql:host=127.0.0.1;dbname=1703a‘,‘root‘,‘root‘); $sql = ‘select * from user1 where username=? and password=?‘; $query = $pdo->prepare($sql); $query->execute([$username,$password]); $data = $query->fetch(2); if(empty($data)) $res = json_encode([‘code‘=>400,‘msg‘=>‘账号密码有误‘,‘data‘=>null]); else $res = json_encode([‘code‘=>200,‘msg‘=>‘登录成功‘,‘data‘=>null]); echo $callback.‘(‘.$res.‘)‘;
以上是关于JSONP实现登录(pdo预处理)的主要内容,如果未能解决你的问题,请参考以下文章