oa_materials_categorybean.java

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			finally{
				DBclose();
			}
		}

		/**
		 * @author	Administrator
		 * @param	aItem: 查询的数据对象,page: 翻页时的当前页,pageSize: 翻页的每页显示的记录条数
		 * @return	ArrayList:Oa_materials_categoryItem 对象的 ArrayList 数组
		 * @see		查出 oa_materials_category 表中的指定数据,页号,页大小的每一条记录存储在一个 Oa_materials_categoryItem 对象中
		 */
		public List find(Oa_materials_categoryItem aItem,int page,int pageSize){
			int nextPageSize=pageSize*(page-1);
			ArrayList list=new ArrayList();
			try {
				boolean b=false;
				StringBuffer filter=new StringBuffer();
				String fvalue=null;
				fvalue=aItem.getPid();
				if(fvalue!=null &&   fvalue.length()>0)
				{
					if(b) filter.append(" and");
					filter.append(" pid ="+fvalue+" ");
					b=true;
				}
				fvalue=aItem.getName();
				if(fvalue!=null &&   fvalue.length()>0)
				{
					if(b) filter.append(" and");
					filter.append(" name like '%"+fvalue+"%' ");
					b=true;
				}
				fvalue=aItem.getDescription();
				if(fvalue!=null &&   fvalue.length()>0)
				{
					if(b) filter.append(" and");
					filter.append(" description like '%"+fvalue+"%' ");
					b=true;
				}
				StringBuffer sql=new StringBuffer();
				sql.append(" select top "+pageSize+" * from "+T.OA_MATERIALS_CATEGORY+"  where ");
				if(b)
				{
					sql.append("  "+filter.toString()+" and ");
				}
				sql.append("  (id not in (SELECT TOP "+Integer.toString(nextPageSize)+" id from "+T.OA_MATERIALS_CATEGORY+" ");
				if(b)
				{
					sql.append(" where "+filter.toString()+"  ");
				}
				sql.append(" order by id desc  ))  order by id desc ");
				rs = executeQuery(sql.toString());
				while(rs.next()){
					Oa_materials_categoryItem item=new Oa_materials_categoryItem();
					item.setId(rs.getString("id"));
					item.setPid(rs.getString("pid"));
					item.setName(rs.getString("name"));
					item.setDescription(rs.getString("description"));
					list.add(item);
				}
				String sql1="select count(*) as total from "+T.OA_MATERIALS_CATEGORY;
				if(b)
					sql1+=" where "+filter.toString();
				rs = executeQuery(sql1);
				if(rs.next()){
					totalRecord=rs.getInt("total");
				}
			}catch(SQLException e){
				System.out.print(e.toString());
			}
			finally{
				DBclose();
			}
			return list;
		}

		/**
		 * @author	Administrator
		 * @param	无
		 * @return	KeyId:插入记录时当前记录的id号
		 * @see		获得插入记录时当前记录的id号
		 */
		public int getKey(){
			return keyId;
		}

		/**
		 * @author	Administrator
		 * @param	无
		 * @return	(totalRecord):插入记录时当前记录的id号
		 * @see		获得插入记录时当前记录的id号
		 */
		public int getTotalRecord(){
	        return totalRecord;
	    }

		/**
		 * @author	Administrator
		 * @param	item:要添加的数据对象Oa_materials_categoryItem
		 * @return	boolean:是否添加成功,如果添加成功返回true,否则返回false
		 * @see		添加一条记录
		 */
		public boolean addItem(Oa_materials_categoryItem item){
			try{
				String sql="insert into "+T.OA_MATERIALS_CATEGORY+"("+
							"pid,"+
							"name,"+
							"description)values("+
							""+item.getPid()+","+
							"'"+item.getName()+"',"+
							"'"+item.getDescription()+"')";
				return executeUpdate(sql);
			}catch(Exception e){
				System.out.println(e.toString());
				return false;
			}
			finally{
				DBclose();
			}
		}

		/**
		 * @author	Administrator
		 * @param	item:要添加的数据对象UsersItem
		 * @return	keyId:当前添加记录的id号 否则返回 0
		 * @see		添加一条记录
		 */
		public int addItemAndMaxId(Oa_materials_categoryItem item){
			try{
				String sql="insert into "+T.OA_MATERIALS_CATEGORY+"("+
							"pid,"+
							"name,"+
							"description)values("+
							""+item.getPid()+","+
							"'"+item.getName()+"',"+
							"'"+item.getDescription()+"')";
				executeUpdate(sql);
				sql = "select max(id) as id from "+T.OA_MATERIALS_CATEGORY;
				rs = executeQuery(sql);
				if (rs.next())
				{
					keyId = rs.getInt("id");
					return keyId;
				}
				else
					return 0;
			}catch(SQLException e){
				System.out.println(e.toString());
				return 0;
			}
			finally{
				DBclose();
			}
		}

		/**
		 * @author	Administrator
		 * @param	item:要修改的数据对象Oa_materials_categoryItem
		 * @return	boolean:如果修改成功返回true,否则返回false
		 * @see		修改一条记录
		 */
		public boolean updateItem(Oa_materials_categoryItem item){
			try{
				String sql="update "+T.OA_MATERIALS_CATEGORY+" set "+
							"pid="+item.getPid()+","+
							"name='"+item.getName()+"',"+
		   	 			   	"description='"+item.getDescription()+"' where id="+item.getId();
				return executeUpdate(sql);
			}catch(Exception e){
				System.out.println(e.toString());
				return false;
			}
			finally{
				DBclose();
			}
		}

		/**
		 * @author	Administrator
		 * @param	item:要修改的数据对象Oa_materials_categoryItem
		 * @return	boolean:如果修改成功返回true,否则返回false
		 * @see		修改一条记录
		 */
		public boolean updateItemFile(Oa_materials_categoryItem item){
			try{
				String sql="update "+T.OA_MATERIALS_CATEGORY+" set "+
							"pid="+item.getPid()+","+
							"name='"+item.getName()+"',"+
		   	 			   	"description='"+item.getDescription()+"' where id="+item.getId();
				return executeUpdate(sql);
			}catch(Exception e){
				System.out.println(e.toString());
				return false;
			}
			finally{
				DBclose();
			}
		}

		/**
		 * @author	Administrator
		 * @param	item:要删除的数据对象Oa_materials_categoryItem
		 * @return	boolean:如果删除成功返回true,否则返回false
		 * @see		删除一条记录
		 */
		public boolean removeItem(Oa_materials_categoryItem item){
			try{
				//判断是否存在下级菜单
				String sql = "select count(*) as num from "+T.OA_MATERIALS_CATEGORY+" where pid="+item.getId();
			 	rs = executeQuery(sql);
				if (rs.next()&&rs.getInt("num")>0)
				{
					 return false;
				}
				sql="delete from  "+T.OA_MATERIALS_CATEGORY+"  where id="+item.getId() ;
				return executeUpdate(sql);
			}catch(Exception e){
				System.out.println(e.toString());
				return false;
			}
			finally{
				DBclose();
			}
		}

		/**
		 * @author	Administrator
		 * @param	ids:要删除的记录的ids数组
		 * @return	boolean:如果删除成功返回true,否则返回false
		 * @see		批量删除条记录
		 */
		public boolean removeItems(String[] ids)
		{
			try{
				String sql="delete from  "+T.OA_MATERIALS_CATEGORY+"  where id in (";
				String filter="";
				for(int i=0;i<ids.length-1;i++){
					filter+=ids[i]+",";
				}
				filter+=ids[ids.length-1]+")";
				sql+=filter;
				return executeUpdate(sql);
			}catch(Exception e){
				System.out.println(e.toString());
				return false;
			}
			finally{
				DBclose();
			}
		}

		/**
		 * @author	Administrator
		 * @param	sql:要更新的sql 语句
		 * @return	boolean:如果执行成功返回true,否则返回false
		 * @see		执行更新一条sql 语句
		 */
		public boolean executeUpdate(String sql){
			try{
				access.getConnection();
				return access.executeUpdate(sql);
			}
			catch(Exception e){
				System.out.println(e.toString());
				return false;
			}
		}

		/**
		 * @author	Administrator
		 * @param	sql:要查询的sql 语句
		 * @return	boolean:如果执行成功返回true,否则返回false
		 * @see		执行查询一条sql 语句
		 */
		public ResultSet executeQuery(String sql){
			try
			{
				access.getConnection();
				rs=access.executeQuery(sql);
				return rs;
			}
			catch(Exception e){
				System.out.println(e.toString());
				return null;
			}
		}

		/**
		 * @author	Administrator
		 * @param	无
		 * @return	无
		 * @see		关闭数据库操作对象
		 */
		public void DBclose(){
			try {
				access.DBclose(rs);
			}
			catch(Exception e) {
				System.out.println(e.toString());
			}
		}
}