java - 参数中的PreparedStatement setBigDecimal

Question

我有带保存方法的 DAO

public void save(BigDecimal cashBackAmount){
 try (Connection connection = dataSource.getConnection();
             PreparedStatement stmt = connection.prepareStatement(query)) {
             stmt.setBigDecimal(1, cashBackAmount);
             stmt.executeUpdate();
        } catch (SQLException e) {
            log.error(e.getMessage());
            throw e;
        }
    }
}

findbug 说:

FindBugs: Unchecked/unconfirmed cast This cast is unchecked, and not all instances of the type casted from can be cast to the type it is being cast to. Check that your program logic ensures that this cast will not fa

如何设置BigDecimal？

stmt.setBigDecimal(1, new BigDecimal(????));

Answer 1

忽略警告/错误。在这种情况下，该消息完全没有意义。

很明显，您已经收到了BigDecimal。因此您不可能收到其他对象。