Beetl是Bee Template Language的缩写，它绝不是简单的另外一种模板引擎，而是新一代的模板引擎，它功能强大，性能良好，超过当前流行的模板引擎。而且还易学易用。

SSL/TLS协议运行机制的概述

JSON Web Token（缩写 JWT）是目前最流行的跨域认证解决方案。有如下特点：

理解OAuth 2.0

apt（apt-get）

SpotBugs is a program which uses static analysis to look for bugs in Java code. It is free software, distributed under the terms of the GNU Lesser General Public License.

Maven Surefire Plugin用于单元测试

Maven Failsafe Plugin用于集成测试

XLSUnit是一个面向数据库应用的单元测试框架，使用excel，作为输入，以及输出比较，适合大量数据库操作。

DBUnit is a JUnit extension (also usable with Ant) targeted at database-driven projects that, among other things, puts your database into a known state between test runs. This is an excellent way to avoid the myriad of problems that can occur when one test case corrupts the database and causes subsequent tests to fail or exacerbate the damage.