如何使用 JDBC 檢索 Oracle 的 DBMS_OUTPUT？

try (CallableStatement call = c.prepareCall(
    "declare "
  + "  num integer := 1000;" // Adapt this as needed
  + "begin "
  + "  dbms_output.enable();"
  + "  dbms_output.put_line('abc');"
  + "  dbms_output.put_line('hello');"
  + "  dbms_output.put_line('so cool');"

  // This captures the output up until now through a PL/SQL TABLE type.
  // Oracle 12c+ uses a SQL cursor, while 11g requires an auxiliary SQL TABLE
  + "  dbms_output.get_lines(?, num);"

  // Disable buffering
  + "  dbms_output.disable();"
  + "end;"
)) {
    call.registerOutParameter(1, Types.ARRAY, "DBMSOUTPUT_LINESARRAY");
    call.execute();

    Array array = null;
    try {
        array = call.getArray(1);
        System.out.println(Arrays.asList((Object[]) array.getArray()));
    }
    finally {
        if (array != null)
            array.free();
    }
}

DSLContext ctx = DSL.using(c, 
    new Settings().withFetchServerOutputSize(10));