layui如何提交post

$.post(

    //1 异步提交的urL

    '${pageContext.request.contextPath}/user/add',

    //2 form表单以键值对形式传输

    data.field,

    //3 访问后成功的回调函数

    function (data) {

        if (data > 0) {

            //3.1   弹窗提示

            layer.msg("添加成功！", {icon: 1});

            //3.2  获得frame索引

            var index = parent.layer.getFrameIndex(window.name);

            //3.3   关闭当前frame

            parent.layer.close(index);

            //3.4   刷新页面

            window.parent.location.reload();

        }else{

            layer.msg("添加失败！", {icon: 1});

        }

    }

);