Question

我有以下配置文件。

@Configuration
@PropertySource({ "application.properties" })
@EnableIntegration
@IntegrationComponentScan
@EnableRetry
public class IntegrationBeanConfiguration {

    @Bean
    public SimpleRetryPolicy retryPolicy(){
        SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy();
        retryPolicy.setMaxAttempts(5);
        return retryPolicy;
    }

    @Bean
    public FixedBackOffPolicy fixedBackOffPolicy(){
        FixedBackOffPolicy p = new FixedBackOffPolicy();
        p.setBackOffPeriod(1000);
        return p;
    }

    @Bean
    public RequestHandlerRetryAdvice retryAdvice(SimpleRetryPolicy retryPolicy, FixedBackOffPolicy fixedBackOffPolicy){
        RequestHandlerRetryAdvice retryAdvice = new RequestHandlerRetryAdvice();
        RetryTemplate retryTemplate = new RetryTemplate();
        retryTemplate.setBackOffPolicy(fixedBackOffPolicy);
        retryAdvice.setRetryTemplate(retryTemplate);
        return retryAdvice;
    }

    @Bean
    @ServiceActivator(inputChannel="rtpRequestPostOperationRequestChannel")
    public MessageHandler httResponseMessageHandler(MessageChannel rtpRequestPostOperationResponseChannel, HeaderMapper<HttpHeaders> headerMapper, RequestHandlerRetryAdvice retryAdvice) {
        List<Advice> list = new ArrayList<>();
        list.add(retryAdvice);
        HttpRequestExecutingMessageHandler handler = new HttpRequestExecutingMessageHandler("https://myhost:8080/rtp/request");
        handler.setHttpMethod(HttpMethod.POST);
        handler.setHeaderMapper(headerMapper);
        handler.setOutputChannel(rtpRequestPostOperationResponseChannel);
        handler.setExpectedResponseType(RtpResponse.class);
        handler.setAdviceChain(list);
        return handler;
    }

}

根据我的理解，如果我向

等不存在的网址发出请求，则会触发重试

https://myhost:8080/rtp/request123

但重试不会发生。如果我的理解不正确或配置有问题，请告知。

由于

Answer 1

在Gary的评论的帮助下。以下配置有效

@Configuration
@PropertySource({ "application.properties" })
@EnableIntegration
@IntegrationComponentScan
@EnableRetry
public class IntegrationBeanConfiguration {

    @Bean
    public SimpleRetryPolicy retryPolicy(){
        SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy();
        retryPolicy.setMaxAttempts(5);
        return retryPolicy;
    }

    @Bean
    public FixedBackOffPolicy fixedBackOffPolicy(){
        FixedBackOffPolicy p = new FixedBackOffPolicy();
        p.setBackOffPeriod(1000);
        return p;
    }

    @Bean
    public RequestHandlerRetryAdvice retryAdvice(SimpleRetryPolicy retryPolicy, FixedBackOffPolicy fixedBackOffPolicy){
        RequestHandlerRetryAdvice retryAdvice = new RequestHandlerRetryAdvice();
        RetryTemplate retryTemplate = new RetryTemplate();
        retryTemplate.setBackOffPolicy(fixedBackOffPolicy);
        retryTemplate.setRetryPolicy(retryPolicy)
        retryAdvice.setRetryTemplate(retryTemplate);
        return retryAdvice;
    }

    @Bean
    @ServiceActivator(inputChannel="rtpRequestPostOperationRequestChannel")
    public MessageHandler httResponseMessageHandler(MessageChannel rtpRequestPostOperationResponseChannel, HeaderMapper<HttpHeaders> headerMapper, RequestHandlerRetryAdvice retryAdvice) {
        List<Advice> list = new ArrayList<>();
        list.add(retryAdvice);
        HttpRequestExecutingMessageHandler handler = new HttpRequestExecutingMessageHandler("https://myhost:8080/rtp/request");
        handler.setHttpMethod(HttpMethod.POST);
        handler.setHeaderMapper(headerMapper);
        handler.setOutputChannel(rtpRequestPostOperationResponseChannel);
        handler.setExpectedResponseType(RtpResponse.class);
        handler.setAdviceChain(list);
        return handler;
    }

}

RequestHandlerRetryAdvice与HttpRequestExecutingMessageHandler无法正常工作

1 个答案: