list.java

是一个JSP与数据库应用系统

package until;

import java.sql.*;
import database.*;
import java.util.Vector;
import until.adminlist;

public class list
{
	private int pagesize;
	private int pageno=0;
	private int Total = 0;
	private int TPages = 0;
	private int n = 1;       //此变量是设定分页时，
	private int pagers = 5; //此变量是设定分页时，页码的个数
	
	private Vector list;
	
	conn cn = new conn();
	
	public list()
	{
		pagesize = 1;
	}
	
	public void setPagesize(int pagesize)
	{
		this.pagesize = pagesize;
	}
	
	
	public void setPageno(int pageno)
	{
			pageno = this.TPages;
		
	}
	
	public int getTotal()
	{
		return Total;
	}
	public int getTPages()
	{
		return TPages;
	}
	
	public Vector getList()
	{
		return list;
	}
	
	
	public void Total(String strsql)
	{
		try
		{
				ResultSet rs = cn.executeQuery(strsql);
				if (rs.next())
				{
					 Total = rs.getInt(1);     
		             // 设置当前页数和总页数
		             TPages = (int)Math.ceil((double)Total/pagesize); 
				}
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	
	}
	
	public boolean pagelist(String strsql)
	{
		boolean flag = false;
		try
		{
			ResultSet rs = cn.executeQuery(strsql);
			list = new Vector();
			while (rs.next())
			{
				adminlist al = new adminlist();
				al.setId(rs.getInt("id"));
				al.setAdmin_name(rs.getString("admin_name"));
				al.setAdmin_pwd(rs.getString("admin_pwd"));
				al.setAdmin_class(rs.getString("admin_class"));
				al.setAdmin_loginnum(rs.getInt("admin_loginnum"));
				list.addElement(al);
			}
			cn.closestmt();
			cn.closeconn();
			flag = true;
			
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		return flag;
		
	}
}