easyui datagrid 列排序

//=====================数据加载=====================
/**
 * grid加载数据
 * 
 * @returns
 */
function gridLoad() {
    $('#t_goods').datagrid({
        idField : 'id', // 只要创建数据表格 就必须要加 ifField
        title : '标的列表',
        fit : true,
        url : parent.baseUrl+'goods',
//        url : '../file/uploadImg',
        method : 'GET',
        fitColumns : true,
        striped : true, // 隔行变色特性
        nowrap : false,
        loadMsg : '数据正在加载,请耐心的等待...',
        rownumbers : true,
        sortName : 'crtTime',
        sortOrder : 'desc',
        rowStyler : function(index, record) {
        },
        frozenColumns : [ [ // 冻结列特性 ,不要与fitColumns 特性一起使用
        {
            field : 'ck',
            width : 50,
            checkbox : true
        } ] ],
        columns : [ [ {
            field : 'goodsNo',
            title : '内部代码',
            width : 80,
            sortable :true,
            align : 'center'
        }, {
            field : 'name',
            title : '标的名称',
            width : 80,
            sortable :true,
            align : 'center'
        }, {
            field : 'plateNum',
            title : '车牌号',
            width : 80,
            sortable :true,
            align : 'center'
        },{
            field : 'firstTypeName',
            title : '标的类型',
            width : 50,
            sortable :true,
            align : 'center'
        }, {
            field : 'secondTypeName',
            title : '标的小类',
            width : 50,
            sortable :true,
            align : 'center'
        },{
            field : 'provinceItemName',
            title : '标的所在省',
            width : 50,
            sortable :true,
            align : 'center'
        }, {
            field : 'cityItemName',
            title : '标的所在市',
            width : 50,
            sortable :true,
            align : 'center'
        }, {
            field : 'qtyFact',
            title : '实收数量',
            width : 30,
            align : 'center'
        }, {
            field : 'unit',
            title : '计量单位',
            width : 25,
            align : 'center'
        }, {
            field : 'storage',
            title : '库存',
            width : 50,
            align : 'center',
            formatter : storageFtt
        }, /*{
            field : 'announcement',
            title : '公告',
            width : 50,
            align : 'center',
            formatter : announcementFtt
        }, */{
            field : 'auction',
            title : '拍卖/变卖日志',
            width : 50,
            align : 'center',
            formatter : auctionFtt
        }, {
            field : 'crtTime',
            title : '创建时间',
            width : 60,
            sortable :true,
            align : 'center'
        }, {
            field : 'action',
            title : '操作',
            width : 80,
            align : 'center',
            formatter : actionFtt
        } ] ],
        onLoadSuccess:function(data){    
            if(top.checkHiddenSet("plateNumFlag")){    
                $("#t_goods").datagrid("hideColumn", "plateNum"); // 设置隐藏列    
            }    
        } ,  
        pagination : true,
        pageSize : 10,
        pageList : [ 5, 10, 15, 20, 50 ],
        toolbar : toolbarFtt()
    });
};

    @RequestMapping(method = RequestMethod.GET, produces = { "application/json" })
    @ResponseBody
    public ListWithTotalCount<GoodsDTO> auctionGoodsQuery(@ModelAttribute("selectedAgency") SysAgencyDto selectedAgency,
            String goodsNo, String name, String goodsType, int page, int rows, String order, String sort) {
        Pageable pageable;
        String agencyId = selectedAgency.getId().toString();

        if (sort != null && !sort.isEmpty()) {
            pageable = new PageRequest(page - 1, rows, Direction.fromStringOrNull(order), sort);
        } else {
            pageable = new PageRequest(page - 1, rows);
        }

        if (logger.isDebugEnabled()) {
            logger.debug("auctionGoodsQuery, goodsNo: {}, name: {}, goodsType: {}", goodsNo, name, goodsType);
        }

        Specification<Goods> spec = (root, query, cb) -> {
            List<Predicate> predicates = new ArrayList<Predicate>();

            if (goodsNo != null && !goodsNo.isEmpty()) {
                Predicate predicate = cb.like(root.get(Goods_.goodsNo), "%" + goodsNo + "%");
                predicates.add(predicate);
            }

            if (name != null && !name.isEmpty()) {
                Predicate predicate = cb.like(root.get(Goods_.name), "%" + name + "%");
                predicates.add(predicate);
            }

            if (agencyId != null && !agencyId.isEmpty() && !"0".equals(agencyId)) {
                Predicate predicate = cb.equal(root.get(Goods_.agencyId), agencyId);
                predicates.add(predicate);
            }

            if (goodsType != null && !goodsType.isEmpty()) {
                Predicate predicateAuctionType = cb.like(root.get(Goods_.firstType).get(GoodsType_.name),
                        "%" + goodsType + "%");
                Predicate predicateAuctionSmlType = cb.like(root.get(Goods_.secondType).get(GoodsType_.name),
                        "%" + goodsType + "%");
                Predicate predicate = cb.or(new Predicate[] { predicateAuctionType, predicateAuctionSmlType });
                predicates.add(predicate);
            }

            if (!predicates.isEmpty()) {
                return cb.and(predicates.toArray(new Predicate[0]));
            } else {
                return null;
            }
        };

        Page<Goods> pageresult = goodsRepository.findAll(spec, pageable);
        List<GoodsDTO> dtoList = (new GoodsDTOAssembler()).toDTOList(pageresult.getContent());

        return new ListWithTotalCount<GoodsDTO>(dtoList, (int) pageresult.getTotalElements());
    }