java实现分页功能的类

            package
             smn.util;


            public
            class
             Pager {
    
            private
            int
             pageNow;
    
            private
            int pageSize=4;
    privateint totalPage;//共有多少页privateint totalSize;//记录数privateboolean hasFirst;//是否有首页privateboolean hasPre;//是否有前一页privateboolean hasNext;//是否有下一页privateboolean hasLast;//是否有末页public Pager(int pageNow,int totalSize){
        this.pageNow=pageNow;
        this.totalSize=totalSize;
    }
    publicint getPageNow() {
        return pageNow;
    }
    publicvoid setPageNow(int pageNow) {
        this.pageNow = pageNow;
    }
    publicint getPageSize() {
        return pageSize;
    }
    publicvoid setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }
    publicint getTotalPage() {
        //页数算法
        totalPage=getTotalSize()/getPageSize();
        if(totalSize%pageSize!=0){
            totalPage++;
        }
        return totalPage;
    }
    publicvoid setTotalPage(int totalPage) {
        this.totalPage = totalPage;
    }
    publicint getTotalSize() {
        return totalSize;
    }
    publicvoid setTotalSize(int totalSize) {
        this.totalSize = totalSize;
    }
    publicboolean isHasFirst() {
        //如果当前页数为第一页就没有首页if(pageNow==1){
            returnfalse;
        }else{
            returntrue;
        }
    }
    publicvoid setHasFirst(boolean hasFirst) {
        this.hasFirst = hasFirst;
    }
    publicboolean isHasPre() {
        //如果有首页就有前一页if(this.isHasFirst()){
            returntrue;
        }else{
            returnfalse;
        }
    }
    publicvoid setHasPre(boolean hasPre) {
        this.hasPre = hasPre;
    }
    publicboolean isHasNext() {
        //如果有尾页就有下一页if(this.isHasLast()){
            returntrue;
        }else{
            returnfalse;
        }
    }
    publicvoid setHasNext(boolean hasNext) {
        this.hasNext = hasNext;
    }
    publicboolean isHasLast() {
        //如果不是最后一页就有尾页if(pageNow==this.getTotalPage()){
            returnfalse;
        }else{
            returntrue;
        }
    }
    publicvoid setHasLast(boolean hasLast) {
        this.hasLast = hasLast;
    }
    
    
}