分页封装 PageInfo

待我称王封你为后i 2022-03-28 02:25 485阅读 0赞

MAVEM

<dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper</artifactId>
                <version>5.0.1</version>
            </dependency>

分页可以直接只用Map接收

@Override
        public PageInfo<Map> findPaysByUserid(Map params) {
            PageHelper.startPage((Integer)params.get("currentPage"), (Integer)params.get("pageSize"));
            List<Map> userPays = userDataMapper.findPaysByUserid(params);
            PageInfo<Map> pageInfo = new PageInfo<Map>(userPays);
            return pageInfo;
        }

import java.io.Serializable;
    
    /*
     *
     * PageInfo
     * @author wangwei
     * @date 2019/1/9
      * @param null 
     * @return 
     */
    public class PageInfo implements Serializable{
    
    
        private static final long serialVersionUID = 1L;
        /**
         * 总记录数
         */
        private Long total;
        /**
         * 总页数
         */
        private Long totalPages;
        /**
         * 当前页
         */
        private Integer pageNo;
        /**
         * 页记录数
         */
        private Integer pageSize;
    
        public PageInfo(Long total) {
            this.total = total;
        }
    
        public PageInfo(Long total, Integer pageNo,
                        Integer pageSize) {
            this.total = total;
            this.totalPages = (total - 1) / pageSize + 1;
            this.pageNo = pageNo;
            this.pageSize = pageSize;
        }
    
        public static PageInfo page(Long total) {
            return new PageInfo(total);
        }
    
        public static PageInfo page( Long total, Integer pageNo,
                                     Integer pageSize) {
            return new PageInfo(total, pageNo, pageSize);
        }
    
        public Long getTotal() {
            return total;
        }
    
        public void setTotal(Long total) {
            this.total = total;
        }
    
        public Long getTotalPages() {
            return totalPages;
        }
    
        public void setTotalPages(Long totalPages) {
            this.totalPages = totalPages;
        }
    
        public Integer getPageNo() {
            return pageNo;
        }
    
        public void setPageNo(Integer pageNo) {
            this.pageNo = pageNo;
        }
    
        public Integer getPageSize() {
            return pageSize;
        }
    
        public void setPageSize(Integer pageSize) {
            this.pageSize = pageSize;
        }
    }