假分页操作

实体类：

@Data
@Component
public class Page<T> {

    private Integer total;
    private Integer prevent;
    private List<T> list;

}



controller层：

@PostMapping("/sortFind")
public RespResult<Page<GoodsInfo>> selectSort(@RequestBody SortGoods sortGoods){

    System.out.println(sortGoods.getGoodsType().equals(""));
    /*
    * PriceRange
    * 0 不进行价格分类  >0 进行价格分类
    * */
    if(!sortGoods.getGoodsType().equals("") && sortGoods.getPriceRange()>0){
        /*两者皆为true*/
        List<GoodsInfo> goodsInfos = sortGoodsMapper.selectType(sortGoods.getGoodsType());
        String text=GoodsPage.priceJudge(sortGoods.getPriceRange());
        int min=Integer.parseInt(text.split("-")[0]);
        int max=Integer.parseInt(text.split("-")[1]);
        List<GoodsInfo> goodsInfos01 = sortGoodsMapper.selectPrice(min, max);
        goodsInfos.retainAll(goodsInfos01);
        return GoodsPage.sortPage(goodsInfos,sortGoods.getPageNum());

    }else if(!sortGoods.getGoodsType().equals("") && sortGoods.getPriceRange()==0){
        /*类型为true 价格为false*/
        List<GoodsInfo> goodsInfos = sortGoodsMapper.selectType(sortGoods.getGoodsType());
        System.out.println("类型为true 价格为false");
        return GoodsPage.sortPage(goodsInfos,sortGoods.getPageNum());


    }else if(sortGoods.getGoodsType().equals("") && sortGoods.getPriceRange()>0){
        /*类型为false 价格为true*/
        String text=GoodsPage.priceJudge(sortGoods.getPriceRange());
        int min=Integer.parseInt(text.split("-")[0]);
        int max=Integer.parseInt(text.split("-")[1]);
        List<GoodsInfo> goodsInfos = sortGoodsMapper.selectPrice(min, max);
        return GoodsPage.sortPage(goodsInfos,sortGoods.getPageNum());

    }else{
        return null;
    }

}