基于AJAX的分页类实现代码

            this.childrenCount = $('#tbody_id'+this.id).children().size();
        }
        //开始查询
        this.url = url;
        if(params == null) params = {};
        $.extend(params,{pageNo:this.pageNo,pageSize:this.pageSize});
        this.params = params;
        var thisObj = this;
        var options = {
            url : url,
            data : params,
            async : false, //采用同步方式请求
            type : 'POST',
            dataType : 'json',
            error : function(xmlhttp, errInfo, e) { //请求出错处理:如:404等
                if (xmlhttp.status == 200) alert('您已经很长时间没有访问网站,请退出后重新登陆！');
                else alert('请求后台服务时发生错误：' + xmlhttp.status);
            },
            success : function(data){
                //删除上一次的数据
                $('#tbody_id'+thisObj.id).children().filter(':gt('+(thisObj.childrenCount-1)+')').remove();
                thisObj.pageList(data.data);
                thisObj.pageBar(data.total);
                if($.isFunction(thisObj.afterQuery)) thisObj.afterQuery();
            }
        };
        if($.isFunction(this.beforeQuery)) this.beforeQuery();
        $.ajax(options); //发送请求
    }

    this.pageList = function(data){