stop page load in codeigniter jquery + ajax bookmark function

问题

I'm working on a bookmarking function (codeigniter, jquery, ajax). Below is the HTML for the form and the jQuery code.

Here's what's happening:

• form is submitting the data to the database
• the page is reloading
• I'm not getting the success alert
• If I use e.preventDefault() or return false, the page doesn't reload and I get the success alert, but the data that gets passed to the database is 0.

HTML FORM

<?php echo form_open('bookmarks/addBookmark'); ?>
<?php echo form_hidden('bookn', $bname); ?>
<?php echo form_hidden('booki', $this->uri->segment(4, 0)); ?>
<button class="bb_button">Bookmark</button>
<?php echo form_close(); ?>

jQuery

$('.bb_button').click(function() { 
            $.ajax({
                url: 'bookmarks/addBookmark',
                type: 'POST',
                success: function (result) {
                    alert("Your bookmark has been added.");
                }                                         
            }); 
       //return false<--this is where I used it
    });

回答1:

You're not passing any data in.

Try

$('.bb_button').click(function(e) { 
    $.ajax({
        url: 'bookmarks/addBookmark',
        type: 'POST',
        data: { bookn: $("[name='bookn']").val()​, booki: $("[name='booki']").val()​ },
        success: function (result) {
            alert("Your bookmark has been added.");
        }                                         
    }); 
    e.preventDefault();
});

来源：https://stackoverflow.com/questions/10432556/stop-page-load-in-codeigniter-jquery-ajax-bookmark-function