pager.java

struts写的一个分页代码

package com.tarena.sd0802.util;

public class Pager {
	/**
	 * 当前页
	 */
	private int currentPage;
	/**
	 * 每页显示的数量
	 */
	private int pageSize=7;
	/**
	 * 总的记录数
	 */
	private int totalSize;
	/**
	 * 总的页数
	 */
	private int totalPage;
	/**
	 * 是否有第一页
	 *
	 */
	private boolean hasFirst;
	/**
	 * 是否有上一页
	 */
	private boolean hasPrevious;
	/**
	 * 是否有下一页
	 */
	private boolean hasNext;
	/**
	 * 是否有最后一页
	 */
	private boolean hasLast;
	
	public Pager(int currentPage,int totalSize){
		this.currentPage=currentPage;
		this.totalSize=totalSize;
	}
	
	public int getCurrentPage() {
		return currentPage;
	}
	public void setCurrentPage(int currentPage) {
		this.currentPage = currentPage;
	}
	public int getPageSize() {
		return pageSize;
	}
	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}
	public int getTotalSize() {
		return totalSize;
	}
	public void setTotalSize(int totalSize) {
		this.totalSize = totalSize;
	}
	//得到总的页数
	public int getTotalPage() {
		totalPage = totalSize/pageSize;
		if(totalSize%pageSize!=0)
			totalPage++;
		return totalPage;
	}
	public void setTotalPage(int totalPage) {
		this.totalPage = totalPage;
	}
	//是否有第一页
	public boolean isHasFirst() {
		if(currentPage==1)
			return false;
		return true;
	}
	public void setHasFirst(boolean hasFirst) {
		this.hasFirst = hasFirst;
	}
	// 是否有上一页
	public boolean isHasPrevious() {
		if(isHasFirst()){
			return true;
		}
		return false;
	}
	public void setHasPrevious(boolean hasPrevious) {
		this.hasPrevious = hasPrevious;
	}
	//是否有上一页
	public boolean isHasNext() {
		if(isHasLast()){
			return true;
		}
		return false;
	}
	public void setHasNext(boolean hasNext) {
		this.hasNext = hasNext;
	}
	// 是否有最后一页
	public boolean isHasLast() {
		if(currentPage==getTotalPage())
			return false;
		return true;
	}
	public void setHasLast(boolean hasLast) {
		this.hasLast = hasLast;
	}
	
}