qq_45396650的博客

获取注解的值并且修改它

1、pom文件 <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency&gt

1、写一个自定义的异常类(MyException)，让其继承Exception.public class MyException extends Exception { static final long serialVersionUID = -3387516993124229948L; public MyException() { } public MyException(String s){ super(s); }}2、分析super