bootstrap 定时 提示 表单验证 ajax 跳转

$(function () {
    $(".publish-btn").click(function(){

        var data = $("#form").serialize();
        var url = "index/insert";

        $.ajax({
            url: url,
            type:'post',
            dataType:'json',
            data:data,
            beforeSend: function(){
                $('.submit-sure').text('提交中...');
            },
            success:function(r){
                if (r.code == 1) {
                alert('您已提交成功');    
                setTimeout(
                    function () {
                    
                    window.location.href= 'index/success';
                    
                    }, 2000
                );
                
                }else {
                    
                    alert('失败');                    

                }
            }
        });
        
        return false;
    });       
});       

<input type="text" class="form-control" id="tableName" placeholder="请输入表格名称" data-toggle="tooltip" data-placement="top">
<script>
function showPopover(target, msg) {
  target.attr("data-original-title", msg);
  $('[data-toggle="tooltip"]').tooltip();
  target.tooltip('show');
  target.focus();
  //2秒后消失提示框
  var id = setTimeout(
    function () {
      target.attr("data-original-title", "");
      target.tooltip('hide');
    }, 2000
  );
}
showPopover($("#tableName"),"表名已存在");
</script>