![](https://csdnimg.cn/release/download_crawler_static/88924378/bg5.jpg)
1.4.2 目标类
1.4.3 切面类
演示的环绕通知
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.1</version>
<scope>test</scope>
</dependency>
</dependencies>
public interface UserService {
void findUserById();
void deleteUserById();
}
public class UserServiceImpl implements UserService {
@Override
public void findUserById() {
System.out.println("核心业务---> 查询用户" );
}
@Override
public void deleteUserById() {
System.out.println("核心业务---> 删除用户" );
}
}