parentservice.java

java写的一个简单的bbs系统

package com.ibm.service;

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

import com.ibm.dao.ParentDAO;

public class ParentService {
	
private static ParentService pservice=null;
	
	private ParentService()
	{
		
	}
	
	public static ParentService getInstance()
	{
		if(pservice==null)
		{
			pservice=new ParentService();
			return pservice;
		}else
		{
			return pservice;
		}
	}
	/**
	   * 取出所有的主版块列表
	   * @param con
	   * @return
	   */
	  public List queryAllParent(Connection con)
	  {
		  return ParentDAO.getInstance().queryAllParent(con);
	  }
}