public static String[] outputListName() {

		String sql = "select id from member order by id asc";
		String path = null;
		String data[]=null;

		Connection conn = null;
		PreparedStatement psmt = null;
		FileOutputStream fos = null;
		try {
			Class.forName("com.mysql.jdbc.Driver");
			conn = DriverManager.getConnection("jdbc:mysql://" + Server.DBIP + ":3306/po_tweeter", "POMA", "9353");
			psmt = conn.prepareStatement(sql);
			ResultSet rs = psmt.executeQuery();
			rs.last(); 
			int count = rs.getRow();
			rs.beforeFirst(); 
			
			data=new String[count];
			
			int i=0;
			while(rs.next())
            {
                data[i++]=rs.getString("id");
            }
			
		} catch (SQLException e) {
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} finally {
			if (conn != null) {
				try {
					conn.close();
				} catch (SQLException e) {
					e.printStackTrace();
				}
			}

			if (psmt != null) {
				try {
					psmt.close();
				} catch (SQLException e) {
					e.printStackTrace();
				}
			}

		}
		return data;
	}