Question

我为此编写了一个用于启动Google Cloud Pub / Sub主题的spring boot应用程序，我使用了Google的tutorial，但是当我运行应用程序时却遇到了这个错误

2019-02-02 18:03:10.248  INFO 15080 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2019-02-02 18:03:10.271  INFO 15080 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-02-02 18:03:10.610 ERROR 15080 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 1 of method messageChannelAdapter in tech.garoon.cloud.CloudApplication required a bean of type 'org.springframework.cloud.gcp.pubsub.core.PubSubTemplate' that could not be found.


Action:

Consider defining a bean of type 'org.springframework.cloud.gcp.pubsub.core.PubSubTemplate' in your configuration.


Process finished with exit code 1

我该如何解决这个问题？

Answer 1

GcpPubSubAutoConfiguration 提供了创建包括PubSubTemplate在内的必要bean的自动配置功能。对于您的情况，错过了某些事情，请确保已建立依赖项或重新创建以下bean以使其起作用。

    @Bean
    public PubSubTemplate pubSubTemplate(PubSubPublisherTemplate pubSubPublisherTemplate,
            PubSubSubscriberTemplate pubSubSubscriberTemplate) {
        return new PubSubTemplate(pubSubPublisherTemplate, pubSubSubscriberTemplate);
    }

此外，请确保根据application.properties中的以下属性创建 GcpContextAutoConfiguration 。

spring.cloud.gcp.credentials.location=${gcp_credentials}

入门依赖：

      <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-gcp-starter-pubsub</artifactId>
        </dependency>

Answer 2

解决方案

我添加了此依赖项

implementation 'org.springframework.cloud:spring-cloud-gcp-autoconfigure:1.1.0.RELEASE'

我的依赖项

dependencies {
    implementation 'org.springframework.cloud:spring-cloud-gcp-pubsub:1.1.0.RELEASE'
    implementation 'org.springframework.cloud:spring-cloud-gcp-autoconfigure:1.1.0.RELEASE'
    implementation "org.springframework.boot:spring-boot-starter-web:2.1.2.RELEASE"
    implementation 'org.springframework.integration:spring-integration-core:5.1.2.RELEASE'
}

Answer 3

如果使用正在注册您的频道，消息处理程序等的外部配置类，请确保使用@Import({GcpPubSubAutoConfiguration.class})注释该配置类

@Configuration
@Import({GcpPubSubAutoConfiguration.class})
public class PubSubConfig{

}

Google Cloud Pub / Sub API和Spring Boot应用程序出现问题

3 个答案: