1.依赖引入

<dependency>
    <groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-aop</artifactId>
</dependency>

2.自定义注解

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * @Author: deng
 * @Date: 2024/3/26 16:10
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Retry {
    /**
     * 默认重试3次
     * @return
     */
    int times() default 3;
}

3.切面类

package com.example.per.aop;

import com.example.per.annotation.Retry;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;

/**
 * @Author: deng
 * @Date: 2024/3/26 16:12
 */
@Component
@Aspect
@Slf4j
public class RetryAspect {

    @Pointcut(value = "@annotation(com.example.per.annotation.Retry)")
    public void retryPoint() {
    }

    @Around(value = "retryPoint()")
    public void around(ProceedingJoinPoint joinPoint) {
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        Method method = signature.getMethod();
        String methodName = method.getName();
        Retry retry = method.getAnnotation(Retry.class);
        int times = retry.times();
        boolean isRetry = false;
        for (int i = 1; i < times + 1; i++) {
            try {
                joinPoint.proceed();
                isRetry = true;
            } catch (Throwable throwable) {
//                throwable.printStackTrace();
                log.info("method:{} run error:{}", methodName, throwable.getMessage());
                log.info("3 seconds run retry,  {} times", i);
                try {
                    Thread.sleep(3000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            if (isRetry) break;
        }
    }
}

4.task

package com.example.per.task;

import com.example.per.annotation.Retry;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

/**
 * @Author: deng
 * @Date: 2024/3/26 16:34
 */
@Component
public class TestTask {

    @Scheduled(cron = "0/5 * * * * ?")
    @Retry
    public void test20240326(){
        int i = 10/0;
    }
}

5.run