PostgresSQL中如何使用SCRAM-SHA-256通过jdbc连接数据库

Question

我正在尝试在 jdbc 中测试 SCRAM-SHA-256。

  public static void main(String[] args) throws SQLException {
        String url = "jdbc:postgresql://192.168.56.101:1521/gisdb";
        Properties props = new Properties();
        props.setProperty("user", "pguser");
        String scram = "SCRAM-SHA-256$4096:QNTBYMpbvZjbOx5RLM7rvA==$tuBD7Ek7niK8jyiuwjCGLH2EurqMNoIaclZhOXohyik=:2b0Ow951/1OPKsqzaGLWPyT+wVIXOs9dvY8TF2eTCVM=";
        props.setProperty("password", scram);
//        props.setProperty("password", "*******");

        Connection conn = DriverManager.getConnection(url, props);
        String databaseProductVersion = conn.getMetaData().getDatabaseProductVersion();
        System.out.println(databaseProductVersion);
    }

我的pg_hba.conf：

hostssl all             all             192.168.0.0/16          scram-sha-256
#hostssl all             all             192.168.0.0/16          trust

select rolname,rolpassword from pg_authid; 表明：

          rolname          |                                                              rolpassword
---------------------------+---------------------------------------------------------------------------------------------------------------------------------------
 pg_monitor                |
 pg_read_all_settings      |
 pg_read_all_stats         |
 pg_stat_scan_tables       |
 pg_read_server_files      |
 pg_write_server_files     |
 pg_execute_server_program |
 pg_signal_backend         |
 pguser                    | SCRAM-SHA-256$4096:PZNbiF6I5G1SVcoN9sTjJw==$xe8jrBS9iUn0ldoIV8moaAod06sYRbxsyyQaUbiuSQE=:2tpLS+eL1brme0Il0wcnsllkDBfDkaQ/II7iVJ3ecxM=
 test                      |
 postgres                  | SCRAM-SHA-256$4096:o1lyjT/acTglIuLsp6TF3Q==$pdWLZ8DuceZDwr9jla0WPzXXa3N3kWrjh9cPnrloP3w=:6hd8Ib7Od+ZZenItVoH4L+26oSiBxqp63WxO82PeonM=

当我scram-sha-256在 java 代码中使用加密密码字符串或 prue 密码进行连接时，在日志文件中，它显示 FATAL: password authentication failed for user "pguser". 当我将方法更改为trustin 时pg_hba.conf，它起作用了。

如何使用scram-sha-256方法密码连接？
我的 JDBC 驱动程序版本是postgresql-42.2.12.jar

Answer 1

您必须提供明文密码，而不是 SCRAM 哈希。