Java 提供了丰富的API，同时又有强大的数据库系统作底层支持，那么我们的编程似乎 变成了类似积木的简单"拼凑"和调用，甚至有人提倡"蓝领程序员",这些都是对现代编 程技术的不了解所至.-Java provide plenty of API, and at the same time, has a powerful database system support for the bottom, so our programming seems to Become a similar