usersservice.java

一个很好的BBS论坛项目

package com.ibm.service;

import java.sql.Connection;
import java.util.ArrayList;

import com.ibm.dao.UsersDAO;
import com.ibm.dto.UsersDTO;
import com.ibm.vo.UsersVO;

public class UsersService {
	private static UsersService usersService= null;
	private UsersService()
	{
		
	}
	public static UsersService getInstance()
	{
		if(usersService==null)
		{
			usersService = new UsersService();
			return usersService;
		}else
		{
			return usersService;
		}
	}
	
	public boolean insertUser(Connection conn,UsersDTO udto)
	{
		return UsersDAO.getInstance().insertUser(conn, udto);
	}
	
	public UsersVO queryUser(Connection conn,UsersDTO udto)
	{
		return UsersDAO.getInstance().queryUser(conn, udto);
	}
	
	public boolean deleteUser(Connection conn,int uid)
	{
		return UsersDAO.getInstance().deleteUser(conn, uid);
	}
	
	public boolean updateUser(Connection conn,UsersDTO udto)
	{
		return UsersDAO.getInstance().insertUser(conn, udto);
	}
	
	public ArrayList<UsersVO> queryAllUser(Connection conn)
	{
		return UsersDAO.getInstance().queryAllUser(conn);
	}
	
	public UsersVO queryById(Connection conn,int uid)
	{
		return UsersDAO.getInstance().queryById(conn, uid);
	}
}