oa_book_informationbean.java

来自「java开发的办公系统 1.系统管理 (地区管理,部门管理,菜单管理,用户管理」· Java 代码 · 共 574 行 · 第 1/2 页

			}
			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_book_informationItem
		 * @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_book_informationItem item){
			try{
				String sql="insert into "+T.OA_BOOK_INFORMATION+"("+
							"category,"+
							"book_id,"+
							"name,"+
							"writer,"+
							"publisher,"+
							"book_no,"+
							"buy_date,"+
							"introduction,"+
							"fileExt,"+
							"departmentid,"+
							"department,"+
							"location,"+
							"book_status)values("+
							""+item.getCategory()+","+
							"'"+item.getBook_id()+"',"+
							"'"+item.getName()+"',"+
							"'"+item.getWriter()+"',"+
							"'"+item.getPublisher()+"',"+
							"'"+item.getBook_no()+"',"+
							"'"+item.getBuy_date()+"',"+
							"'"+item.getIntroduction()+"',"+
							"'"+item.getFileExt()+"',"+
							""+item.getDepartmentid()+","+
							"'"+item.getDepartment()+"',"+
							"'"+item.getLocation()+"',"+
							""+item.getBook_status()+")";
				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_book_informationItem item){
			try{
				String sql="insert into "+T.OA_BOOK_INFORMATION+"("+
							"category,"+
							"book_id,"+
							"name,"+
							"writer,"+
							"publisher,"+
							"book_no,"+
							"buy_date,"+
							"introduction,"+
							"fileExt,"+
							"departmentid,"+
							"department,"+
							"location,"+
							"book_status)values("+
							""+item.getCategory()+","+
							"'"+item.getBook_id()+"',"+
							"'"+item.getName()+"',"+
							"'"+item.getWriter()+"',"+
							"'"+item.getPublisher()+"',"+
							"'"+item.getBook_no()+"',"+
							"'"+item.getBuy_date()+"',"+
							"'"+item.getIntroduction()+"',"+
							"'"+item.getFileExt()+"',"+
							""+item.getDepartmentid()+","+
							"'"+item.getDepartment()+"',"+
							"'"+item.getLocation()+"',"+
							""+item.getBook_status()+")";
				executeUpdate(sql);
				sql = "select max(id) as id from "+T.OA_BOOK_INFORMATION;
				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_book_informationItem
		 * @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_book_informationItem item){
			try{
				String sql="update "+T.OA_BOOK_INFORMATION+" set "+
							"category="+item.getCategory()+","+
							"book_id='"+item.getBook_id()+"',"+
							"name='"+item.getName()+"',"+
							"writer='"+item.getWriter()+"',"+
							"publisher='"+item.getPublisher()+"',"+
							"book_no='"+item.getBook_no()+"',"+
							"buy_date='"+item.getBuy_date()+"',"+
							"introduction='"+item.getIntroduction()+"',"+
							"fileExt='"+item.getFileExt()+"',"+
							"departmentid="+item.getDepartmentid()+","+
							"department='"+item.getDepartment()+"',"+
							"location='"+item.getLocation()+"',"+
		   	 			   	"book_status="+item.getBook_status()+" 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_book_informationItem
		 * @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_book_informationItem item){
			try{
				String sql="update "+T.OA_BOOK_INFORMATION+" set "+
							"category="+item.getCategory()+","+
							"book_id='"+item.getBook_id()+"',"+
							"name='"+item.getName()+"',"+
							"writer='"+item.getWriter()+"',"+
							"publisher='"+item.getPublisher()+"',"+
							"book_no='"+item.getBook_no()+"',"+
							"buy_date='"+item.getBuy_date()+"',"+
							"introduction='"+item.getIntroduction()+"',"+
							"fileExt='"+item.getFileExt()+"',"+
							"departmentid="+item.getDepartmentid()+","+
							"department='"+item.getDepartment()+"',"+
							"location='"+item.getLocation()+"',"+
		   	 			   	"book_status="+item.getBook_status()+" 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_book_informationItem
		 * @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_book_informationItem item){
			try{
				String sql="delete from  "+T.OA_BOOK_INFORMATION+"  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_BOOK_INFORMATION+"  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());
			}
		}
}