的PreparedStatement setBigDecimal从PARAMS

Question

我DAO与保存方法

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; 
     } 
    } 
} 

和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 

我怎么能setBigDecimal？

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

Answer 1

只要忽略警告/错误。这种情况下的信息是完全没有意义的。

很明显，您已经收到BigDecimal。所以你不可能收到其他的东西。