分页类

package com.yxq.model;

public class CreatePage {
	private int CurrentP;	//当前页码
	private int AllP;
	private int AllR;
	private int PerR;
	private String PageLink;		//分页导航栏信息
	private String PageInfo;		//分页状态显示信息
	
	public CreatePage(){}

	public int getAllP() {
		return AllP;
	}
	/**
	 * 计算总页数
	 * @param allP
	 */
	public void setAllP() {
		AllP = (AllR%PerR==0)?(AllR/PerR):(AllR/PerR + 1);
	}

	public int getAllR() {
		return AllR;
	}

	public String getPageLink() {
		return PageLink;
	}

	public void setPageLink(String gowhich) {
		if(gowhich==null)
			gowhich="";
		if(gowhich.indexOf("?")>=0)
			gowhich+="&";
		else
			gowhich+="?";
		if(AllP>1){
			PageLink="<table border='0' cellpadding='3'><tr><td>";
			if(CurrentP>1){
				PageLink+="<a href='"+gowhich+"showpage=1'>首页</a>&nbsp;";
				PageLink+="<a href='"+gowhich+"showpage="+(CurrentP-1)+"'>上一页</a>&nbsp;";
			}
			if(CurrentP<AllP){
				PageLink+="<a href='"+gowhich+"showpage="+(CurrentP+1)+"'>下一页</a>&nbsp;";
				PageLink+="<a href='"+gowhich+"showpage="+AllP+"'>尾页</a>";
			}
			PageLink+="</td></tr></table>";			
		}
	}

	public String getPageInfo() {
		return PageInfo;
	}

	public void setPageInfo() {
		if(AllP>1){
			PageInfo="<table border='0' cellpadding='3'><tr><td>";
			PageInfo+="每页显示："+PerR+"/"+AllR+" 条记录！";
			PageInfo+="当前页："+CurrentP+"/"+AllP+" 页！";
			PageInfo+="</td></tr></table>";			
		}
	}

	public void setAllR(int allR) {
		AllR = allR;
	}

	public int getPerR() {
		return PerR;
	}

	public void setPerR(int perR) {
		PerR = perR;
	}

	public int getCurrentP() {
		return CurrentP;
	}

	public void setCurrentP(String currentP) {
		if(currentP==null||currentP.equals(""))
			currentP="1";
		try{
			CurrentP=Integer.parseInt(currentP);
		}catch(NumberFormatException e){
			CurrentP=1;
			e.printStackTrace();
		}
		if(CurrentP<1)
			CurrentP=1;
		if(CurrentP>AllP)
			CurrentP=AllP;		
	}
	
}