Spring Cloud Stream和GCP pub sub作为活页夹卡住了

Question

我尝试在这里运行示例https://github.com/spring-cloud/spring-cloud-gcp/tree/master/spring-cloud-gcp-samples/spring-cloud-gcp-pubsub-binder-sample我期待它在我的默认项目上创建一个主题。 Tomcat服务启动了，但是甚至连index.html页面都没有加载（应该有一条消息，比如“Tomcat在端口上启动：8080（http）带有上下文路径''”），所以它似乎卡住了，在我补充说：

@Autowired
private Source source;

这是日志

2019-02-14 12:06:54.305  INFO 3560 --- [           main] com.example.demo.DemoApplication         : Starting DemoApplication on 2019-02-14 12:06:54.309  INFO 3560 --- [           main] com.example.demo.DemoApplication         : No active profile set, falling back to default profiles: default
2019-02-14 12:06:55.362  INFO 3560 --- [           main] faultConfiguringBeanFactoryPostProcessor : No bean named 'errorChannel' has been explicitly defined. Therefore, a default PublishSubscribeChannel will be 
(http)
2019-02-14 12:06:56.246  INFO 3560 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2019-02-14 12:06:56.247  INFO 3560 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.14]
2019-02-14 12:06:56.257  INFO 3560 --- [           main] 2019-02-14 12:06:56.385  INFO 3560 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2019-02-14 12:06:56.385  INFO 3560 --- [           main] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 2027 ms
2019-02-14 12:06:56.970  INFO 3560 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2019-02-14 12:06:57.079  INFO 3560 --- [           main] o.s.b.a.w.s.WelcomePageHandlerMapping    : Adding welcome page: class path resource [static/index.html]
2019-02-14 12:06:57.253  WARN 3560 --- [           main] c.g.a.oauth2.DefaultCredentialsProvider  : Your application has authenticated using end user credentials from Google Cloud SDK. We recommend that most server applications use service accounts instead. If your application continues to use end user credentials from Cloud SDK, you might receive a "quota exceeded" or "API not enabled" error. For more information about service accounts, see https://cloud.google.com/docs/authentication/.
2019-02-14 12:06:57.383  INFO 3560 --- [           main] o.s.c.g.a.c.GcpContextAutoConfiguration  : The default project ID is xxxxxx-xxxxx
2019-02-14 12:06:58.373  INFO 3560 --- [           main] o.s.i.monitor.IntegrationMBeanExporter   : Registering MessageChannel nullChannel
2019-02-14 12:06:58.395  INFO 3560 --- [           main] o.s.i.monitor.IntegrationMBeanExporter   : Registering MessageChannel output
2019-02-14 12:06:58.455  INFO 3560 --- [           main] o.s.i.monitor.IntegrationMBeanExporter   : Registering MessageChannel errorChannel
2019-02-14 12:06:58.492  INFO 3560 --- [           main] o.s.i.monitor.IntegrationMBeanExporter   : Registering MessageHandler errorLogger
2019-02-14 12:06:58.525  INFO 3560 --- [           main] o.s.i.endpoint.EventDrivenConsumer       : Adding {logging-channel-adapter:_org.springframework.integration.errorLogger} as a subscriber to the 'errorChannel' channel
2019-02-14 12:06:58.525  INFO 3560 --- [           main] o.s.i.channel.PublishSubscribeChannel    : Channel 'application.errorChannel' has 1 subscriber(s).
2019-02-14 12:06:58.525  INFO 3560 --- [           main] o.s.i.endpoint.EventDrivenConsumer       : started _org.springframework.integration.errorLogger

可能会发生什么？

Answer 1

你在spring.cloud.stream.bindings.input.destination中定义了application.properties吗？绑定器将为您的主题创建匿名订阅（如果没有配置），但它不会自行创建主题。

Answer 2

这是一个权限问题。 GOOGLE_APPLICATION_CREDENTIALS环境设置不正确。