page.java

功能是公安和学校的管理系统,用struts+hibernate+spring等匡架组成,在eclepse就能编译

package com.db;
import java.util.*;
final public class page{
	private int pagecount=0;//分页总数
	private int pagenum;	//总页数 除10后的页数 
	private int nowpage;	//当前页 除10后的页数
	private int rows;		//行总数
	private int rownum;		//每页显示多少条记录
	private int pageno;		//当前页
	private String pageString;
	private String errors="";
	public page(){
	}
	//行总数,每页显示多少记录,当前页
	public void setPageString(int rows,int rownum,int pageno,int page__,String urlval){
		this.rownum=rownum;
		this.pageno=pageno;
		this.rows=rows;
		if(rows%rownum==0){
			setPagecount(rows/rownum);
		}
		else{
			setPagecount(rows/rownum+1);
		}
		if(pageno<=0){
			pageno=1;
		}
		else if(pageno>pagecount){
			pageno=pagecount;
		}
		if(pageno%page__==0){
			nowpage=pageno/page__;
		}
		else{
			nowpage=pageno/page__+1;
		}
		if(pagecount%page__==0){
			pagenum=pagecount/page__;
		}
		else{
			pagenum=pagecount/page__+1;
		}
		if(pagenum==1){
			pageString="<FONT face='webdings'>9</FONT>&nbsp;";
			int i=1;
			while(i<=pagecount){
				if(i==pageno){
					pageString=pageString+"<a style='color:red'>"+i+"</a>&nbsp;";	
				}
				else{
					pageString=pageString+"<a href='?pageno="+i+"&"+urlval+"'>"+i+"</a>&nbsp;";
				}
				i++;
			}
			pageString=pageString+"<FONT face='webdings'>:</FONT>";
		}
		else if(pagenum>1){
			if(nowpage==1){
				pageString="<FONT face='webdings'>9</FONT><FONT face='webdings'>7</FONT>&nbsp;";
				int i=(nowpage-1)*page__+1;
				while(i<=nowpage*page__){
					if(i==pageno){
						pageString=pageString+"<a style='color:red'>"+i+"</a>&nbsp;";	
					}
					else{
						pageString=pageString+"<a href='?pageno="+i+"&"+urlval+"'>"+i+"</a>&nbsp;";
					}
					i++;
				}
				pageString=pageString+"<a href='?pageno=11&"+urlval+"' title='下十页'><FONT face='webdings'>8</FONT></a><a href='?pageno="+pagecount+"&"+urlval+"' title='尾页'><FONT face='webdings'>:</FONT></a>";
			}
			else if(nowpage>1 && nowpage<pagenum){
				pageString="<a href='?pageno=1&"+urlval+"' title='首页'><FONT face='webdings'>9</FONT></a><a href='?pageno="+((nowpage-1)*page__)+"&"+urlval+"' title='上十页'><FONT face='webdings'>7</FONT></a>&nbsp;";
				int i=(nowpage-1)*page__+1;
				while(i<=nowpage*page__){
					if(i==pageno){
						pageString=pageString+"<a style='color:red'>"+i+"</a>&nbsp;";	
					}
					else{
						pageString=pageString+"<a href='?pageno="+i+"&"+urlval+"'>"+i+"</a>&nbsp;";
					}
					i++;
				}
				pageString=pageString+"<a href='?pageno="+(nowpage*page__+1)+"&"+urlval+"' title='下十页'><FONT face='webdings'>8</FONT></a><a href='?pageno="+pagecount+"&"+urlval+"' title='尾页'><FONT face='webdings'>:</FONT></a>";
			}
			else if(nowpage>=pagenum){
				pageString="<a href='?pageno=1&"+urlval+"' title='首页'><FONT face='webdings'>9</FONT></a><a href='?pageno="+((nowpage-1)*page__)+"&"+urlval+"' title='上十页'><FONT face='webdings'>7</FONT></a>&nbsp;";
				int i=(nowpage-1)*page__+1;
				while(i<=pagecount){
					if(i==pageno){
						pageString=pageString+"<a style='color:red'>"+i+"</a>&nbsp;";	
					}
					else{
						pageString=pageString+"<a href='?pageno="+i+"&"+urlval+"'>"+i+"</a>&nbsp;";
					}
					i++;
				}
				pageString=pageString+"<FONT face='webdings'>8</FONT><FONT face='webdings'>:</FONT>";
			}
		}
	}
	public String getPageString(){
		return pageString;
	}
	public void setPagecount(int pagecount){
		this.pagecount=pagecount;
	}
	public int getPagecount(){
		return pagecount;
	}
	public int getRows(){
		return rows;
	}
	public String getPageSql(String sql){//pageno为新页
		String newsql="select * from (select rownum r_id,t.*  from ("+sql+
		              ") t where rownum <= " + (pageno*rownum) + ") where r_id >" +((pageno-1)*rownum);		
		return newsql;
	}
	public void setErrors(String error){
		this.errors=error;
	}
	public String getErrors(){
		return errors;
	}
}