JavaでのOracleページング・クエリーの実装

/**
          ,page        ，row      
*/
public UserVO findAllUser(int page,int row) {
		
		ResultSet rs = null;
		PreparedStatement prep = null;
		UserVO user = null;
		try {
/**
        SQL  
*/
			String sql = "select * from (select a.*,rownum rn from (select * from users where status=1) a) where  "+row+"*"+page+" >= rn and ("+page+"-1)*"+row+" < rn";
/**
Md5Utils.md5Jdk(user.getPasswd()) MD5    ，         ，            
*/
			prep = conn.prepareStatement(sql);
			rs = prep.executeQuery();
			while (rs.next()) {
				user = new UserVO();
				user.setUsername(rs.getString("username"));
				user.setPasswd(rs.getString("passwd"));
				user.setPower(rs.getInt("power"));
				user.setName(rs.getString("name"));
				user.setSex(rs.getString("sex"));
				user.setBirthday(rs.getDate("birthday"));
				user.setEmail(rs.getString("email"));
				user.setStatus(rs.getInt("status"));
				System.out.println(user.getUsername()+" "
				+Md5Utils.md5Jdk(user.getPasswd())+" " 
				+user.getPower()+" "
				+user.getName()+" "
				+user.getSex()+" "
				+user.getBirthday()+" "
				+user.getEmail()+" "
				+user.getStatus()
						);
			}

		} catch (Exception e) {
			throw new ServiceException("              ，，。", e);

		} finally {
/**
DbUtils.closeStatement(rs, null, prep)                  

*/
			DbUtils.closeStatement(rs, null, prep);

		}

		return user;
	}