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