First off , and as you realized i would point out , any individual method in any cmp cmr case is far , far simpler than any method with directly - coded jdbc because of the complexity of the sql and framework 正如你所认识到的那样,我将要指出,由于sql和体系框架复杂性的原因,任何cmp / cmr实例中的任何单个的方法都远比使用jdbc直接编码的方法容易。