在这篇文章中，第1部分中创建的简单的登录系统得到扩展，添加了使用JSP的用户注册系统。
In this article, the simple login system created in Part 1 is extended to add a user registry system with JSPs.
第2部分将对本文中创建的简单登录系统进行扩展，实现一个注册系统，访问者可以注册并立即访问系统。
Part 2 will extend the simple login system created in this article to implement a registry system where new visitors can register and immediately gain access to the system.
注册复合备忘单的扩展点同简单备忘单一样。
The extension point for registering a composite cheat sheet is the same as for a simple one.
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