分页工具类PageBean

青旅半醒 2023-01-19 04:34 218阅读 0赞

public class PageBean implements Serializable {
        //1 当前页码
        private Integer pageIndex;
        //2 每页显示行数
        private Integer pageSize;
        //3 总页数
        private Integer totalPage;
        //4 数据总行数
        private Integer totalCount;
        //5 起始行数
        private Integer startRows;
        //参数（当前页码，每页显示行数，数据总行数）
        public PageBean(Integer pageIndex, Integer pageSize, Integer totalCount) {
            this.totalCount = totalCount;
            if (pageSize < 1) {
                this.pageSize = 5;
            } else {
                this.pageSize = pageSize;
            }
            //总页数
            this.totalPage = this.totalCount % this.pageSize == 0 ? this.totalCount / this.pageSize : (this.totalCount / this.pageSize) + 1;
            //this.totalPage=(int)Math.ceil(this.totalCount/(double)this.pageSize);
            //设置当前页码
            if (pageIndex < 1) {
                this.pageIndex = 1;
            } else if (pageIndex > this.totalPage) {
                this.pageIndex = this.totalPage;
            } else {
                this.pageIndex = pageIndex;
            }
            //计算起始行
            this.startRows = (this.pageIndex - 1) * this.pageSize;
        }
    
        public Integer getPageIndex() {
            return pageIndex;
        }
    
        public void setPageIndex(Integer pageIndex) {
            this.pageIndex = pageIndex;
        }
    
        public Integer getPageSize() {
            return pageSize;
        }
    
        public void setPageSize(Integer pageSize) {
            this.pageSize = pageSize;
        }
    
        public Integer getTotalPage() {
            return totalPage;
        }
    
        public void setTotalPage(Integer totalPage) {
            this.totalPage = totalPage;
        }
    
        public Integer getTotalCount() {
            return totalCount;
        }
    
        public void setTotalCount(Integer totalCount) {
            this.totalCount = totalCount;
        }
    
        public Integer getStartRows() {
            return startRows;
        }
    
        public void setStartRows(Integer startRows) {
            this.startRows = startRows;
        }
    }