由于springboot jpa 原生的 findAll  是从第0页开始的,因此如果想使用自带的分页配合jqgrid使用需要进行处理。

 

1、在查询时,先进行-1操作



@GetMapping("/goods/list")
    public @ResponseBody Page<SkuInfo> queryGoodsInfos(String venderSku, Pageable pageable)
    {
        if(!StringUtils.isEmpty(venderSku))
        {
            return skuRepository.findAllByVenderSku(venderSku,pageable);
        }
        else
        {
            Pageable reallyPageable=new PageRequest(pageable.getPageNumber()==0?0:pageable.getPageNumber()-1,pageable.getPageSize(),pageable.getSort());
            return skuRepository.findAll(reallyPageable);
        }
    }



 2、在返回内容到前台显示时,进行当前页面+1操作



jsonReader: {
                root: "content", // json中代表实际deliverInfo 这个
                page: "number+1", // json中代表当前页码的数据
                total: "totalPages", // json中代表页码总数的数据
                records: "totalElements" // json中代表数据行总数的数据
                // subgrid: {root: "data"}
            }



 

 

下面附上实例,实例A为最简单的直接使用findAll

controller如下:



/**
 * 商品信息管理界面
 */
@Controller
public class GoodsInfoController {

    @Autowired
    private SkuRepository skuRepository;

    @GetMapping("/goods/man")
    public String getGoodsInfoIndex()
    {
        return "admin/goods";
    }

//    @GetMapping("/goods/{venderSku}")
//    public @ResponseBody List<SkuInfo> getGoodsInfo(@PathVariable String venderSku)
//    {
//        return skuRepository.findSkuInfosByVenderSku(venderSku);
//    }

    @GetMapping("/goods/list")
    public @ResponseBody Page<SkuInfo> queryGoodsInfos(String venderSku, Pageable pageable)
    {
        if(!StringUtils.isEmpty(venderSku))
        {
            return skuRepository.findAllByVenderSku(venderSku,pageable);
        }
        else
        {
            Pageable reallyPageable=new PageRequest(pageable.getPageNumber()==0?0:pageable.getPageNumber()-1,pageable.getPageSize(),pageable.getSort());
            return skuRepository.findAll(reallyPageable);
        }
    }
}



jqgrid相关的js如下:



function pageInit() {
        jQuery("#grid").jqGrid({
            url: '/goods/list',
            datatype: "json",
            ajaxGridOptions: {contentType: 'application/json; charset=utf-8'},
            // postData:{beginDate:'2017-02-02',endDate:'2018-03-03',orderId:333},
            colNames: ['商家SKU', '可销库存', '批发价', '有效期至', '单体价', '加盟价', '连锁价', '医疗价', '商业价',  '最后修改时间'],
            colModel: [
                {name: 'venderSku', index: 'venderSku', width: 80},
                {name: 'skuStock', index: 'skuStock', width: 20},
                {
                    name: 'skuPrice',
                    index: 'skuPrice',
                    align: "left",
                    sortable: false,
                    width: 80,
                    formatter: 'number',
                    formatoptions: {thousandsSeparator: ",", defaulValue: "", decimalPlaces: 2}
                },

                {name: 'validTime', index: 'validTime', width: 30},

                {
                    name: 'monomersPrice',
                    index: 'monomersPrice',
                    align: "left",
                    sortable: false,
                    width: 30,
                    formatter: 'number',
                    formatoptions: {thousandsSeparator: ",", defaulValue: "", decimalPlaces: 2}
                },
                {
                    name: 'joinInPrice',
                    index: 'joinInPrice',
                    align: "left",
                    sortable: false,
                    width: 30,
                    formatter: 'number',
                    formatoptions: {thousandsSeparator: ",", defaulValue: "", decimalPlaces: 2}
                },
                {
                    name: 'chainPrice',
                    index: 'chainPrice',
                    align: "left",
                    sortable: false,
                    width: 30,
                    formatter: 'number',
                    formatoptions: {thousandsSeparator: ",", defaulValue: "", decimalPlaces: 2}
                },
                {
                    name: 'medicalCarePrice',
                    index: 'medicalCarePrice',
                    align: "left",
                    sortable: false,
                    width: 30,
                    formatter: 'number',
                    formatoptions: {thousandsSeparator: ",", defaulValue: "", decimalPlaces: 2}
                },
                {
                    name: 'businessPrice',
                    index: 'businessPrice',
                    align: "left",
                    sortable: false,
                    width: 30,
                    formatter: 'number',
                    formatoptions: {thousandsSeparator: ",", defaulValue: "", decimalPlaces: 2}
                },
                {
                    name: 'lastModifyTime',
                    index: 'lastModifyTime',
                    width: 100,
                    formatter: "date",
                    formatoptions: {srcformat: 'Y-m-d H:i:s', newformat: 'Y-m-d H:i:s'}
                }
            ],
            rowNum: 10,
            rowList: [10, 20, 30],
            pager: '#pager2',
            sortname: 'venderSku',
            mtype: "GET",
            postData: $("#searchForm").serializeJSON(),
            viewrecords: true,
            sortorder: "desc",
            emptyrecords: "暂无数据",
            autowidth: true,
            rownumbers:true,
            caption: "用户ERP中提取到的商品信息",
            loadonce: false,        //如果为ture则数据只从服务器端抓取一次,之后所有操作都是在客户端执行,翻页功能会被禁用
            loadComplete: function () {
            },
            prmNames: {
                page: "page", // 表示请求页码的参数名称
                rows: "size", // 表示请求行数的参数名称
                totalrows: "totalElements"//表示一共有多少条数据
                //sort: "sortFieldName", // 表示用于排序的列名的参数名称
                //order: "sort" // 表示采用的排序方式的参数名称
            },
            jsonReader: {
                root: "content", // json中代表实际模型数据的入口
                page: "number+1", // json中代表当前页码的数据
                total: "totalPages", // json中代表页码总数的数据
                records: "totalElements" // json中代表数据行总数的数据
                // subgrid: {root: "data"}
            }
        });


    }



 

 

实例B,需要传入beginDate,endDate这种同一个参数多个值的,即简单查询搞不定的。需要引入JpaSpecificationExecutor

repositroy如下:



public interface DeliverRepository extends JpaRepository<DeliverInfo,Long>, JpaSpecificationExecutor<DeliverInfo> {

    /**
     * 获取指定回写状态订单
     * @param rewriteState
     * @return
     */
    List<DeliverInfo> findByrewriteState(int rewriteState);



    /**
     * 更新回写状态
     * @param rewriteState
     * @param orderId
     * @return
     */
    @Transactional
    @Modifying
    @Query(value = "update DeliverInfo set rewriteState=:rewriteState where orderId=:orderId")
    int updateReWriteState(@Param("rewriteState") Integer rewriteState, @Param("orderId") Long orderId);


    /**
     * 更新重试次数
     * @param retryTimes
     * @param orderId
     * @return
     */
    @Transactional
    @Modifying
    @Query(value = "update DeliverInfo set retry_times=:retryTimes where orderId=:orderId")
    int updateretryTimes(@Param("retryTimes") Integer retryTimes, @Param("orderId") Long orderId);



congroller如下:



@Controller
public class DeliverInfoManController {

    @Autowired
    private DeliverRepository deliverRepository;

    @GetMapping("/deliver/man")
    public String getDeliverInfoIndex()
    {
        return "admin/deliver";
    }

    @GetMapping("/deliver/list")
    public @ResponseBody Page<DeliverInfo> getDeliverInfoList(DeliverInfoQuery query,Pageable pageable)
    {
        return this.getDataList(query, pageable);
    }


    private Page<DeliverInfo> getDataList(DeliverInfoQuery deliverInfoQuery,Pageable pageable) {
        Specification<DeliverInfo> querySpecifi = new Specification<DeliverInfo>() {
            public Predicate toPredicate(Root<DeliverInfo> root, CriteriaQuery<?> criteriaQuery, CriteriaBuilder criteriaBuilder) {

                List<Predicate> predicates = new ArrayList<>();
                if (!StringUtils.isEmpty(deliverInfoQuery.getBeginDate())) {
                    //大于或等于传入时间
                    predicates.add(criteriaBuilder.greaterThanOrEqualTo(root.get("orderTime").as(String.class), deliverInfoQuery.getBeginDate()));
                }
                if (!StringUtils.isEmpty(deliverInfoQuery.getEndDate())) {
                    //小于或等于传入时间
                    predicates.add(criteriaBuilder.lessThanOrEqualTo(root.get("orderTime").as(String.class), deliverInfoQuery.getEndDate()));
                }
                if (deliverInfoQuery != null) {
                    Class<? extends DeliverInfoQuery> clazz = deliverInfoQuery.getClass();
                    Field[] fields = clazz.getDeclaredFields();
                    for (Field tmpField : fields) {
                        tmpField.setAccessible(true);
                        try {
                            if (tmpField.get(deliverInfoQuery) != null &&    !tmpField.getName().equals("beginDate") && !tmpField.getName().equals("endDate"))       //不为空的查询参数才拼查询条件,并且要去掉额外加上的时间范围条件
                            {
                                String name = tmpField.getName();
                                predicates.add(criteriaBuilder.equal(root.get(name), tmpField.get(deliverInfoQuery)));
//                                if (tmpField.getType().equals(String.class) &&  !StringUtils.isEmpty((String)tmpField.get(orderQuery)))     //只拼字符串查询条件的,因为目前只需要按照 订单号、退款状态来查询
//                                {
//                                    String name = tmpField.getName();
//                                    predicates.add(criteriaBuilder.equal(root.get(name), tmpField.get(orderQuery)));
//                                }
                            }
                        } catch (IllegalAccessException e) {
                            e.printStackTrace();
                        }
                    }
                }
                // and到一起的话所有条件就是且关系,or就是或关系
                return criteriaBuilder.and(predicates.toArray(new Predicate[predicates.size()]));
            }
        };
        Sort sort = new Sort(Sort.Direction.DESC, "orderTime");
        Pageable reallyPageable=new PageRequest(pageable.getPageNumber()==0?0:pageable.getPageNumber()-1,pageable.getPageSize(),pageable.getSort());
        return  deliverRepository.findAll(querySpecifi,reallyPageable);
    }
}



jqgrid 相关js如下:



function pageInit() {
        jQuery("#grid").jqGrid({
            url: '/deliver/list',
            datatype: "json",
            ajaxGridOptions: {contentType: 'application/json; charset=utf-8'},
            // postData:{beginDate:'2017-02-02',endDate:'2018-03-03',orderId:333},
            colNames: ['订单号', '配送方式', '商家编码', '快递单号', '物流公司编号', '物流公司名称', '回写标示', '重试次数'],
            colModel: [
                {name: 'orderId', index: 'orderId', width: 40},
                {name: 'shipmentType', index: 'shipmentType', width: 40},
                {name: 'customerCode', index: 'customerCode', width: 40},
                {name: 'deliveryId', index: 'deliveryId', width: 30},
                {name: 'logiNo', index: 'logiNo', width: 20},
                {name: 'logiCompany', index: 'logiCompany', width: 40},
                {name: 'rewriteState', index: 'rewriteState', width: 20},
                {name: 'retryTimes', index: 'retryTimes', width: 20}
            ],
            rowNum: 10,
            rowList: [10, 20, 30,5],
            pager: '#pager2',
            sortname: 'orderId',
            mtype: "GET",
            postData: $("#searchForm").serializeJSON(),
            viewrecords: true,
            sortorder: "desc",
            emptyrecords: "暂无数据",
            autowidth: true,
            rownumbers:true,
            caption: "从ERP种获取到的待回写物流信息",
            loadonce: false,        //如果为ture则数据只从服务器端抓取一次,之后所有操作都是在客户端执行,翻页功能会被禁用
            loadComplete: function () {
            },
            prmNames: {
                page: "page", // 表示请求页码的参数名称
                rows: "size", // 表示请求行数的参数名称
                totalrows: "totalElements"//表示一共有多少条数据
                //sort: "sortFieldName", // 表示用于排序的列名的参数名称
                //order: "sort" // 表示采用的排序方式的参数名称
            },
            jsonReader: {
                root: "content", // json中代表实际deliverInfo 这个
                page: "number+1", // json中代表当前页码的数据
                total: "totalPages", // json中代表页码总数的数据
                records: "totalElements" // json中代表数据行总数的数据
                // subgrid: {root: "data"}
            }
        });


    }