public static void closeJDBC(ResultSet rs, Statement st, Connection con) {
		if (rs != null) {
			try {
				rs.close();
			} catch (SQLException e) {
				logger.log(Level.SEVERE, "ResultSet 关闭失败...", e);
			}
		}
		if (st != null) {
			try {
				st.close();
			} catch (SQLException e) {
				logger.log(Level.SEVERE, "Statement 关闭失败...", e);
			}
		}
		if (con != null) {
			try {
				con.close();
			} catch (SQLException e) {
				logger.log(Level.SEVERE, "Connection 关闭失败...", e);
			}
		}
	}