throw_orekyuu

example_Demo2Application.java

package com.example;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@SpringBootApplication
@Controller
public class Demo2Application {

    public static void main(String[] args) {
        SpringApplication.run(Demo2Application.class, args);
    }

    @GetMapping("/")
    @ResponseBody
    @ThrowOrekyuu
    public String hello() {
        return "hello";
    }
}

example_Orekyuu.java

package com.example;

public class Orekyuu extends Throwable {
}

example_ThrowOrekyuu.java

package com.example;

import java.lang.annotation.*;

@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface ThrowOrekyuu {
}

example_ThrowOrekyuuAspect.java

package com.example;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;

@Aspect
@Component
public class ThrowOrekyuuAspect {

    @Around("@annotation(com.example.ThrowOrekyuu)")
    public Object projectAuthAspect(ProceedingJoinPoint joinPoint) throws Throwable {
        throw new Orekyuu();
    }
}