反射的应用

https://blog.csdn.net/fk002008/article/details/77677581

https://blog.csdn.net/fk002008/article/details/80034256

https://docs.oracle.com/javaee/7/api/javax/validation/Constraint.html

http://www.cnblogs.com/liangweiping/p/3837332.html

https://www.cnblogs.com/huojg-21442/p/7239846.html