Spring Retry 访问实现类名

Question

如何在 RetryListener 的 onError 方法中从 RetryContext 中检索实现类名的名称

import org.springframework.retry.annotation.Backoff;
import org.springframework.retry.annotation.Retryable;

public abstract class ServiceBase {

    @Retryable(value = ServiceException.class, maxAttempts = 3, backoff = @Backoff(delay = 5000), listeners = {"myRetryListener"})
    public void start() throws ServiceException {
        fireServiceStarted("Service started");
    }
}


public class MyRetryListener implements RetryListener {

    @Override
    public <T, E extends Throwable> boolean open(RetryContext context, RetryCallback<T, E> callback) {
        // Log when retry operation starts
        return true; // proceed with retry
    }

    @Override
    public <T, E extends Throwable> void close(RetryContext context, RetryCallback<T, E> callback, Throwable throwable) {
        // Log when retry operation ends
    }

    @Override
    public <T, E extends Throwable> void onError(RetryContext context, RetryCallback<T, E> callback, Throwable throwable) {
        // Log each error during retry
    }
}

我试图从 RetryListener 实现的 onError 方法中的 RetryContext 获取实现类名称的名称。但是，我得到的是抽象类名称。

Answer 1

如果您要重试，下面将给出方法和类名称 抽象方法

    private static <T, E extends Throwable> String getMethodName(MethodInvocationRetryCallback callback) {
        return callback.getInvocation().getMethod().getName();
    }

    private static <T, E extends Throwable> String getClassName(MethodInvocationRetryCallback callback) {
        return callback.getInvocation().getThis().getClass().toString();
    }