代码生成器
【参考资料】
java之利用Freemarker模板引擎实现代码生成器，提高效率：
https://blog.csdn.net/huangwenyi1010/article/details/71249258freemarker
manual
https://freemarker.apache.org/docs/index.htmlDButils
https://www.cnblogs.com/smyhvae/p/4085684.html
MySQL 查看表结构简单命令
https://www.cnblogs.com/zhangyuhang3/p/6873895.html
freemarker
http://freemarker.foofun.cn
mysql中类型映射到java类型
https://www.cnblogs.com/jerrylz/p/5814460.html
hibernate
https://blog.csdn.net/fancylovejava/article/details/7438660
java获取当前路径的几种方法
https://www.cnblogs.com/franson-2016/p/5728280.html
classloader
https://blog.csdn.net/ozwarld/article/details/7440937
对象拷贝
http://czj4451.iteye.com/blog/1998750
https://www.cnblogs.com/zhjh256/p/7771518.html