SpringBoot 项目:Singleton bean creation not allowed while singletons of this factory are in destruct解决

org.springframework.beans.factory.BeanCreationNotAllowedException: Error creating bean with name 'eurekaAutoServiceRegistration': Singleton bean creation not allowed while singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:216) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.event.ApplicationListenerMethodAdapter.getTargetBean(ApplicationListenerMethodAdapter.java:280) ~[spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.event.ApplicationListenerMethodAdapter.doInvoke(ApplicationListenerMethodAdapter.java:250) ~[spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.event.ApplicationListenerMethodAdapter.processEvent(ApplicationListenerMethodAdapter.java:174) ~[spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.event.ApplicationListenerMethodAdapter.onApplicationEvent(ApplicationListenerMethodAdapter.java:137) ~[spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167) ~[spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:383) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:389) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:337) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:994) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:961) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.cloud.context.named.NamedContextFactory.destroy(NamedContextFactory.java:76) [spring-cloud-context-1.2.4.RELEASE.jar:1.2.4.RELEASE]
	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:272) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:578) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:554) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:961) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:523) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:968) [spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1033) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1009) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:961) [spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:794) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:325) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at com.aspire.comp.ivr.client.MainApplication.main(MainApplication.java:28) [classes/:na]

以上是本人起动项目时报的错误！

在往上翻日志会找到导致这个错误其它错误日志，如下：

java.net.BindException: Address already in use: bind

没错，端口被占用！本人使用的8081端口，windows系统

查询端口占用情况：

window+R组合键，调出命令窗口。输入cmd回车

输入命令netstat -ano回车

C:\Users\my_name>netstat -ano

活动连接

  协议  本地地址          外部地址        状态           PID
  TCP    0.0.0.0:135            0.0.0.0:0              LISTENING       304
  TCP    0.0.0.0:371            0.0.0.0:0              LISTENING       2952
  TCP    0.0.0.0:445            0.0.0.0:0              LISTENING       4
  TCP    0.0.0.0:5357           0.0.0.0:0              LISTENING       4
  TCP    0.0.0.0:8081           0.0.0.0:0              LISTENING       5176
  TCP    0.0.0.0:10029          0.0.0.0:0              LISTENING       3144
  TCP    0.0.0.0:33333          0.0.0.0:0              LISTENING       2844
  TCP    0.0.0.0:49152          0.0.0.0:0              LISTENING       712

以上是部分端口占用情况，其中包含8081.

接下来查看是谁占用了该端口：输入指令tasklist|findstr "5176"（5176是对应进程的PID，在行后）

C:\Users\zhanghao_d>tasklist|findstr "5176"
java.exe                      5176 Services                   0    504,352 K