[英]AJAX PHP LOGIN Page is not redirecting correctly
基本上,我有一個正常工作的AJAX登錄頁面,但是當我成功登錄時,我希望它重定向到頁面而不重新加載它,我不確定它是如何做的,因為我對langauge很陌生。 非常感謝
index.php
<!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 http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="jquery.js"></script>
<link rel="stylesheet" href="styles.css" type="text/css" />
<title>Popup Login</title>
<script type="text/javascript">
$(document).ready(function(){
$("#login_a").click(function(){
$("#shadow").fadeIn("normal");
$("#login_form").fadeIn("normal");
$("#user_name").focus();
});
$("#cancel_hide").click(function(){
$("#login_form").fadeOut("normal");
$("#shadow").fadeOut();
});
$("#login").click(function(){
username=$("#user_name").val();
password=$("#password").val();
$.ajax({
type: "POST",
url: "login.php",
data: "name="+username+"&pwd="+password,
success: function(html){
if(html=='1')
{
$("#login_form").fadeOut("normal");
$("#shadow").fadeOut();
$("#profile").html("<a href='logout.php' id='logout'>Logout</a>");
}
else
{
$("#add_err").html("Wrong username or password");
}
},
beforeSend:function()
{
$("#add_err").html("Loading...")
}
});
return false;
});
});
</script>
</head>
<body>
<?php session_start(); ?>
<div id="profile">
<?php if(isset($_SESSION['user_name'])){
?>
<a href='logout.php' id='logout'>Logout</a>
<?php }else {?>
<a id="login_a" href="#">login</a>
<?php } ?>
</div>
<div id="login_form">
<div class="err" id="add_err"></div>
<form action="login.php">
<label>User Name:</label>
<input type="text" id="user_name" name="user_name" />
<label>Password:</label>
<input type="password" id="password" name="password" />
<label></label><br/>
<input type="submit" id="login" value="Login" />
<input type="button" id="cancel_hide" value="Cancel" />
</form>
</div>
<div id="shadow" class="popup"></div>
</body>
</html>
login.php
<?php
session_start();
$username = $_POST['name'];
$password = $_POST['pwd'];
$mysqli=mysqli_connect('');
$query = "SELECT * FROM user WHERE username='$username' AND password='$password'";
$result = mysqli_query($mysqli,$query)or die(mysqli_error());
$num_row = mysqli_num_rows($result);
$row=mysqli_fetch_array($result);
if( $num_row >=1 ) {
echo '1';
$_SESSION['user_name']=$row['username'];
}
else{
echo 'false';
}
?>
成功登錄后,我希望它重定向到頁面而不重新加載
只要要重定向的頁面在同一域上,或者您可以正確設置CORS標頭,並且可以處理相對鏈接,那么在成功回調中,您可以將整個頁面的HTML替換為新頁面的HTML。
您可以為新頁面啟動另一個ajax調用,並使用document.write()
消除現有的HTML,如下所示:
...
success: function(html){
if(html=='1') {
$("#login_form").fadeOut("normal");
$("#shadow").fadeOut(400, function(){
// Completely replace the page's HTML
$.ajax({
type: 'GET',
url: 'http://example.com/logged-in',
async: false, // You want this synchronous
success: function(data) {
// This code block replaces your current page seamlessly
document.open();
document.write(data);
document.close();
},
error: function(e){
alert(e.message);
}
});
});
}
...
這是一個演示:
$("#bye").fadeOut(1400, function(){ $.ajax({ type: 'GET', url: 'http://enable-cors.org/', async: false, success: function(data) { // This is a quick-n-dirty hack // to get the relative links working for the demo var base_href = '<base href="http://enable-cors.org/">'; document.open(); document.write(base_href + data); document.close(); }, error: function(e){ alert(e.message); } }); });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> <div id="bye"><h1>Logged in Successfully</h1></div>
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