Bean生成工具改良：

txt文件名作为类名
前两位大写或IS开头的。
https://www.cnblogs.com/zgz21/articles/5481765.html

https://rongmayisheng.com/java%E4%B8%AD%E5%9D%91%E7%88%B9%E7%9A%84getter%E3%80%81setter%E6%96%B9%E6%B3%95%E7%9A%84%E6%BD%9C%E8%A7%84%E5%88%99/