Spring @Retryable - 调用时如何记录

使用 Spring 的 @Retryable 注解可以实现对方法调用的重试。当方法调用失败时，可以通过 @Retryable 注解来配置重试的次数和延迟时间，以及指定需要重试的异常类型。在重试过程中，我们还可以记录重试的次数和异常信息，以便后续分析和排查问题。

       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">
    

java
import org.springframework.retry.annotation.Backoff;
import org.springframework.retry.annotation.Recover;
import org.springframework.retry.annotation.Retryable;
public class RetryableService {
    private int retryCount = 0;
    @Retryable(value = {CustomException.class}, maxAttempts = 3, backoff = @Backoff(delay = 1000))
    public void doSomething() throws CustomException {
        retryCount++;
        System.out.println("重试次数：" + retryCount);
        throw new CustomException("方法调用失败");
    }
    @Recover
    public void recover(CustomException e) {
        System.out.println("重试失败，进行恢复操作");
    }
}
public class CustomException extends Exception {
    public CustomException(String message) {
        super(message);
    }
}

java
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
private static final Logger logger = LoggerFactory.getLogger(RetryableService.class);
@Retryable(value = {CustomException.class}, maxAttempts = 3, backoff = @Backoff(delay = 1000))
public void doSomething() throws CustomException {
    retryCount++;
    logger.info("重试次数：{}", retryCount);
    throw new CustomException("方法调用失败");
}

java
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.retry.annotation.Backoff;
import org.springframework.retry.annotation.Recover;
import org.springframework.retry.annotation.Retryable;
public class RetryableService {
    private static final Logger logger = LoggerFactory.getLogger(RetryableService.class);
    private int retryCount = 0;
    @Retryable(value = {CustomException.class}, maxAttempts = 3, backoff = @Backoff(delay = 1000))
    public void doSomething() throws CustomException {
        retryCount++;
        logger.info("重试次数：{}", retryCount);
        throw new CustomException("方法调用失败");
    }
    @Recover
    public void recover(CustomException e) {
        logger.error("重试失败，进行恢复操作", e);
    }
}
public class CustomException extends Exception {
    public CustomException(String message) {
        super(message);
    }
}
public class Main {
    public static void main(String[] args) {
        RetryableService service = new RetryableService();
        try {
            service.doSomething();
        } catch (CustomException e) {
            e.printStackTrace();
        }
    }
}