使用jQuery和Ajax切换按钮
问题描述:
我有两个按钮,Save和Unsave。通常,我每个人都去一个PHP的帖子页面,并刷新页面。如果您点击保存,页面将被刷新,只有Unsave会显示 - 反之亦然。使用jQuery和Ajax切换按钮
我试图用Ajax和jQuery来做到这一点。基本上,我有这些:
下面是通常会切换他们PHP:
//$thisIsSaved would return 1 if the coupon has been saved and 0 if not
$hasSaved = "inline";
$youveSaved = "none";
if($thisIsSaved > 0 && $_SESSION["loggedIn"] == 1)
{
$hasSaved = "none";
$youveSaved = "";
}
elseif($thisIsSaved == 0 && $_SESSION["loggedIn"] == 1)
{
$hasSaved = "";
$youveSaved = "none";
}
else
{
$hasSaved = "none";
$youveSaved = "none";
}
我怎么能这样做不需要刷新页面,用纯阿贾克斯+ jQuery的?
答
你可以很容易地用jQuery
和jQuery的$.ajax()
方法做到这一点。
见活生生的例子:http://jsfiddle.net/rtE9J/11/
HTML
<button id="save">Save</button>
<button id="unsave">Unsave</button>
<div id="result"></div>
CSS
#unsave{display:none}
JS
$('#save, #unsave').click(function(){
//maintain reference to clicked button throughout
var that = $(this);
//disable clicked button
$(that).attr('disabled', 'disabled');
//display loading Image
$('#result').html('<img src="http://blog-well.com/wp-content/uploads/2007/06/indicator-big-2.gif" />');
//Make your AJAX call
$.ajax({
url: 'changeSave.php',
data: {action: $(this).attr('id')},
success: function(d){
//re-enable the button for next time
$(that).attr('disabled', '');
//Update your page content accordingly.
$('#result').html(d);
//Toggle the buttons' visibilty
$('#save').toggle();
//Toggle the buttons' visibilty
$('#unsave').toggle();
},
type: 'POST'
});
});
我甚至为你扔了一个漂亮的加载图标。