为解决如下报错日志问题：

2020/3/6 下午12:07:49 [2020-03-06 04:07:49.968] [Thread-8] [org.springframework.jmx.export.annotation.AnnotationMBeanExporter] 
[INFO] Unregistering JMX-exposed beans on shutdown

2020/3/6 下午12:07:49 [2020-03-06 04:07:49.968] [Thread-8] [org.springframework.jmx.export.annotation.AnnotationMBeanExporter] 
[INFO] Unregistering JMX-exposed beans

2020/3/6 下午12:07:49 [2020-03-06 04:07:49.983] [Thread-8] [com.alibaba.druid.pool.DruidDataSource] [INFO] {dataSource-1} closed

2020/3/6 下午12:07:49 [2020-03-06 04:07:49.984] [Thread-8] [com.netflix.discovery.DiscoveryClient] [INFO] Shutting down DiscoveryClient ...

2020/3/6 下午12:07:49 [2020-03-06 04:07:49.988] [Thread-8] [org.springframework.context.annotation.CommonAnnotationBeanPostProcessor]

 [WARN] Invocation of destroy method failed on bean with name 'scopedTarget.eurekaClient': org.springframework.beans.factory.

BeanCreationNotAllowedException: Error creating bean with name 'eurekaInstanceConfigBean': 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!)

在pom.xml文件中加入了新的jar依赖后问题解决：

<!--springboot web模块支持-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
 

工作记录。