Question

在我的春季启动aws-cloud SNS http终点确认订阅无效。当我的应用程序出现错误后SNS确认。错误：

[Request processing failed; nested exception is java.lang.IllegalArgumentException: Invoked method public abstract void org.springframework.cloud.aws.messaging.endpoint.NotificationStatus.confirmSubscription() is no accessor method!] with root cause
    java.lang.IllegalArgumentException: Invoked method public abstract void org.springframework.cloud.aws.messaging.endpoint.NotificationStatus.confirmSubscription() is no accessor method!
        at org.springframework.util.Assert.notNull(Assert.java:115) ~[spring-core-4.2.4.RELEASE.jar!/:4.2.4.RELEASE]
        at org.spring

我的控制器处理程序是：

     @NotificationSubscriptionMapping
        public void handleSubscriptionMessage( NotificationStatus status)   throws IOException {
            //Confirming SNS subscription
            status.confirmSubscription();
        }

我的Pom包含以下内容：

     <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-aws-messaging</artifactId>
          <version>1.0.4.RELEASE</version>
        </dependency>

        <!-- For Spring AWS autoconfiguration-->
        <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-aws-autoconfigure</artifactId>
          <version>1.0.4.RELEASE</version>
        </dependency>

我按照link

中的说明进行了操作

Answer 1

您是否指定了自定义解析器：

<mvc:annotation-driven>
    <mvc:argument-resolvers>
        <ref bean="notificationResolver" />
    </mvc:argument-resolvers>
</mvc:annotation-driven>

<aws-messaging:notification-argument-resolver id="notificationResolver" />

另外，我看不到控制器映射，但在教程中有一个声明：

目前无法在方法上定义映射URL 因此，必须在类型级别完成RequestMapping 包含端点的完整路径。

Answer 2

为那些在java配置之后的人提供此功能。请注意，您必须使用NotificationMessageHandlerMethodArgumentResolver来实现HandlerMethodArgumentResolver。

import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.aws.messaging.endpoint.NotificationMessageHandlerMethodArgumentResolver;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
@EnableWebMvc
public class MvcConfig extends WebMvcConfigurerAdapter {

    @Autowired
    private NotificationMessageHandlerMethodArgumentResolver notificationResolver;

    @Override
    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
        argumentResolvers.add(notificationMessageHandlerMethodArgumentResolver());
    }

    @Bean
    public NotificationMessageHandlerMethodArgumentResolver notificationMessageHandlerMethodArgumentResolver () {

        return new NotificationMessageHandlerMethodArgumentResolver();
    };

}

Answer 3

我的 Kotlin 配置看起来像这样，配置订阅和消息传递以及取消订阅方法参数解析

        import com.amazonaws.services.sns.AmazonSNS
        import org.springframework.beans.factory.annotation.Autowired
        import org.springframework.cloud.aws.messaging.endpoint.config.NotificationHandlerMethodArgumentResolverConfigurationUtils
        import org.springframework.context.annotation.Configuration
        import org.springframework.web.method.support.HandlerMethodArgumentResolver
        import org.springframework.web.servlet.config.annotation.EnableWebMvc
        import org.springframework.web.servlet.config.annotation.WebMvcConfigurer
        
        @Configuration
        @EnableWebMvc
        class ListenerWebConfiguration : WebMvcConfigurer
        {
          @Autowired
          private lateinit var amazonSNS: AmazonSNS
        
          override fun addArgumentResolvers(argumentResolvers: MutableList<HandlerMethodArgumentResolver>) {
argumentResolvers.add(NotificationHandlerMethodArgumentResolverConfigurationUtils.getNotificationHandlerMethodArgumentResolver(amazonSNS))
          }
        }

Spring aws-cloud SNS http终点确认订阅无效

3 个答案: