javascript - 提交表格后停留在同一页面

Question

我试图在不重定向页面的情况下将数据提交到数据库。这段代码有什么错误吗？

$('#saving').on('click', function() { 
        var fname = $('#fname').val(); 
        var lname = $('#lname').val(); 
        var company = $('#company').val(); 
        var mnum = $('#mnum').val(); 
        var dataString = 'fname=' +fname + '&lname=' + lname + '&company=' + company + '&mnum=' + mnum; 
        $.ajax({ 
            type: "POST", 
            url: "submit.php", 
            data: dataString, 
            success: function() { 
                alert(''); 
                $('#dialog-message').dialog('open'); 
            } 
        }); 
    }); 

Answer 1

我想你想要preventDefault :

function(event) {
    // ... ajax ...
    event.preventDefault();
}

文档指出:

If this method is called, the default action of the event will not be triggered.