txlbdao.java

这个程序是花了好几十万请人开发的

/**
/**
 * @author 郑文金
 *这个类定义的是 通讯录表的数据库访问对象
 * 
 * 
 */
package javabean;

import java.sql.*;
import java.util.Vector;
public class Txlbdao 
{
	public Connection con=null;
	private Statement sql=null;
	private ResultSet rs=null;
	private ConnectionPool pool;
	Vector vec=new Vector();
	
	public Txlbdao(Connection con)
	{
		this.con=con;
	}
	
	public void update(String s)
	{
		try
		{
			Statement sql=con.createStatement();
			sql.executeUpdate(s);
		}
		catch(SQLException e)
		{
			System.err.print(e.getMessage());
		}
		
	}
	public ResultSet query(String s)
	{
		try
		{
			Statement sql=con.createStatement();
			rs=sql.executeQuery(s);
		}
		catch(SQLException e)
		{
			System.err.print(e.getMessage());
		}
		return rs;
	}
	
	public Vector query(int code,int pagesize,String str)
	{
		int count=pagesize;
		try{
			sql=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);
			rs=sql.executeQuery(str);
			rs.absolute((code-1)*pagesize+1);
			while(count>0)
			{
				String company=rs.getString("company").trim();
				if(company.length()>10)
					company=company.substring(0,10)+"...";
				Txlb txl=new Txlb();
				txl.setID(rs.getInt("ID"));
				txl.setCUID(rs.getString("CUID"));
				txl.setCOMPANY(company);
				txl.setRID(rs.getInt("RID"));
				txl.setRNAME(rs.getString("RNAME"));
				txl.setUUID(rs.getString("UUID"));			   								
				vec.add(txl);
				count--;
				if(!rs.next())
					break;
			}
			if(rs!=null)
				rs.close();
		}
		catch(SQLException e){return null;}
		return vec;
	}
	
	public Member showdetials(String s)//返回一个实体，用于保存用户的详细信息
	{
		Member member=new Member();
		try
		{
			rs=query(s);			
			while(rs.next())
			{
				member.setID(rs.getInt(1));
				member.setUUID(rs.getString("UUID"));
				member.setRNAME(rs.getString("RNAME"));
				member.setCOMPANY(rs.getString("COMPANY"));
				member.setUSER_ADDRESS(rs.getString("USER_ADDRESS"));
				member.setUSER_POST_CODE(rs.getString("USER_POST_CODE"));
				member.setUSER_PROVINCE(rs.getString("USER_PROVINCE"));
				member.setUSER_CITY(rs.getString("USER_CITY"));
				member.setUSER_MOBILEPH(rs.getString("USER_MOBILEPH"));
				member.setUSER_HOMEPH(rs.getString("USER_HOMEPH"));
				member.setUSER_OFFICEPH(rs.getString("USER_OFFICEPH"));	
				member.setEMAIL(rs.getString("EMAIL"));		
				member.setHOMEPAGE(rs.getString("HOMEPAGE"));		
			}
		}
		catch(SQLException e)
		{
			System.err.println(e.getMessage());
		}
		return member;
	}
}