【发布时间】：2016-08-21 10:42:33
【问题描述】：
我使用以下方法定义了一个简单的SpringApplicationRunListener 实现：
@Override
public void finished(ConfigurableApplicationContext configurableApplicationContext, Throwable throwable) {
logger.info("It's finished");
}
当我在没有任何 Spring 云依赖的情况下运行时，我得到以下日志：
2016-04-27 10:37:37.702 INFO 5720 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2016-04-27 10:37:37.703 INFO 5720 --- [ main] b.a.test.LazyFilterRuntimeListener : It's finished
但是，当我添加以下依赖项时：
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
然后“完成”行被记录两次，一次在结尾（比如没有 Spring cloud/Eureka），一次在开始，甚至在 Spring 启动徽标出现之前：
2016-04-27 10:37:35.500 INFO 5720 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@255b53dc: startup date [Wed Apr 27 10:37:35 CEST 2016]; root of context hierarchy
2016-04-27 10:37:35.638 INFO 5720 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2016-04-27 10:37:35.785 INFO 5720 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'encrypt.CONFIGURATION_PROPERTIES' of type [class org.springframework.cloud.bootstrap.encrypt.KeyProperties] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2016-04-27 10:37:35.786 INFO 5720 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'encryptionBootstrapConfiguration' of type [class org.springframework.cloud.bootstrap.encrypt.EncryptionBootstrapConfiguration$$EnhancerBySpringCGLIB$$268d5fc8] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2016-04-27 10:37:35.839 INFO 5720 --- [ main] b.c.test.LazyFilterRuntimeListener : It's finished
2016-04-27 10:37:35.842 INFO 5720 --- [ main] be.company.test.TestApplication : Started TestApplication in 0.499 seconds (JVM running for 0.86)
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.2.7.RELEASE)
...
2016-04-27 10:37:37.702 INFO 5720 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2016-04-27 10:37:37.703 INFO 5720 --- [ main] b.c.test.LazyFilterRuntimeListener : It's finished
2016-04-27 10:37:37.703 INFO 5720 --- [ main] be.company.test.TestApplication : Started TestApplication in 2.423 seconds (JVM running for 2.721)
它还两次提到“Started Application in ...”这一行。
这种行为有什么特殊原因吗？我正在尝试编写一个SpringApplicationRunListener，它依赖于已创建的特定bean。但是，如果我添加spring cloud，第一次到达finished()方法时，上下文还没有创建，所以目前会抛出错误。
【问题讨论】：
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我遇到了同样的问题。你报告问题了吗？如果是这样，你能发布一个链接吗？
-
不，没有报告。我们为我们的案例解决了这个问题。因为我们要求 bean 已经在上下文中，所以我们首先检查 bean 是否存在。 github.com/camunda/camunda-bpm-spring-boot-starter/commit/…。我不知道这个问题是否与 1.2.x 或 1.3.x 相关。
标签： java spring spring-boot spring-cloud