SpringCloud中Client向Eureka注册中心注册服务成功后不久就Unregistering（Unregistering application 服务名 with eureka with）

不念不忘少年蓝@ 2023-09-28 11:47 98阅读 0赞

在SpringCloud中Server端启动成功了，再去启动Client项目，可能会出现这样的问题，Console日志如下：

2022-06-22 16:04:41.990  INFO 14964 --- [           main] c.c.c.ConfigServicePropertySourceLocator : Fetching config from server at : http://localhost:9001/
    2022-06-22 16:04:42.560  INFO 14964 --- [           main] c.c.c.ConfigServicePropertySourceLocator : Located environment: name=config, profiles=[test], label=master, version=28afd1f94d37c7a7fc60e402dab302bb178fae5c, state=null
    2022-06-22 16:04:42.560  INFO 14964 --- [           main] b.c.PropertySourceBootstrapConfiguration : Located property source: [BootstrapPropertySource {name='bootstrapProperties-configClient'}, BootstrapPropertySource {name='bootstrapProperties-https://gitee.com/llongtong/zeno-training-platform-config.git/file:C:\Users\SAMSUNG\AppData\Local\Temp\config-repo-7871456846147239475\config-test.yml'}]
    2022-06-22 16:04:42.576  INFO 14964 --- [           main] com.zeno.ConfigClientTestApplication     : No active profile set, falling back to default profiles: default
    2022-06-22 16:04:42.866  INFO 14964 --- [           main] o.s.cloud.context.scope.GenericScope     : BeanFactory id=788e2244-e364-3193-959b-c9162cfcdae6
    2022-06-22 16:04:43.971  INFO 14964 --- [           main] DiscoveryClientOptionalArgsConfiguration : Eureka HTTP Client uses RestTemplate.
    2022-06-22 16:04:44.845  WARN 14964 --- [           main] iguration$LoadBalancerCaffeineWarnLogger : Spring Cloud LoadBalancer is currently working with the default cache. You can switch to using Caffeine cache, by adding it and org.springframework.cache.caffeine.CaffeineCacheManager to the classpath.
    2022-06-22 16:04:44.892  INFO 14964 --- [           main] o.s.c.n.eureka.InstanceInfoFactory       : Setting initial instance status as: STARTING
    2022-06-22 16:04:44.923  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Initializing Eureka in region us-east-1
    2022-06-22 16:04:44.923  INFO 14964 --- [           main] c.n.d.s.r.aws.ConfigClusterResolver      : Resolving eureka endpoints via configuration
    2022-06-22 16:04:44.939  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Disable delta property : false
    2022-06-22 16:04:44.939  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Single vip registry refresh property : null
    2022-06-22 16:04:44.939  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Force full registry fetch : false
    2022-06-22 16:04:44.939  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Application is null : false
    2022-06-22 16:04:44.939  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Registered Applications size is zero : true
    2022-06-22 16:04:44.939  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Application version is -1: true
    2022-06-22 16:04:44.939  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Getting all instance registry info from the eureka server
    2022-06-22 16:04:45.111  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : The response status is 200
    2022-06-22 16:04:45.111  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Starting heartbeat executor: renew interval is: 30
    2022-06-22 16:04:45.111  INFO 14964 --- [           main] c.n.discovery.InstanceInfoReplicator     : InstanceInfoReplicator onDemand update allowed rate per min is 4
    2022-06-22 16:04:45.111  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Discovery Client initialized at timestamp 1655885085111 with initial instances count: 3
    2022-06-22 16:04:45.111  INFO 14964 --- [           main] o.s.c.n.e.s.EurekaServiceRegistry        : Registering application CONFIG-CLIENT with eureka with status UP
    2022-06-22 16:04:45.111  INFO 14964 --- [           main] com.netflix.discovery.DiscoveryClient    : Saw local status change event StatusChangeEvent [timestamp=1655885085111, current=UP, previous=STARTING]
    2022-06-22 16:04:45.126  INFO 14964 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient    : DiscoveryClient_CONFIG-CLIENT/LONGTONG.mshome.net:config-client:8453: registering service...
    2022-06-22 16:04:45.126  INFO 14964 --- [           main] com.zeno.ConfigClientTestApplication     : Started ConfigClientTestApplication in 5.828 seconds (JVM running for 8.011)
    2022-06-22 16:04:45.142  INFO 14964 --- [ionShutdownHook] o.s.c.n.e.s.EurekaServiceRegistry        : Unregistering application CONFIG-CLIENT with eureka with status DOWN
    2022-06-22 16:04:45.142  INFO 14964 --- [ionShutdownHook] com.netflix.discovery.DiscoveryClient    : Saw local status change event StatusChangeEvent [timestamp=1655885085142, current=DOWN, previous=UP]
    2022-06-22 16:04:45.142  INFO 14964 --- [ionShutdownHook] com.netflix.discovery.DiscoveryClient    : Shutting down DiscoveryClient ...
    2022-06-22 16:04:45.173  INFO 14964 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient    : DiscoveryClient_CONFIG-CLIENT/LONGTONG.mshome.net:config-client:8453 - registration status: 204
    2022-06-22 16:04:45.173  INFO 14964 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient    : DiscoveryClient_CONFIG-CLIENT/LONGTONG.mshome.net:config-client:8453: registering service...
    2022-06-22 16:04:45.173  INFO 14964 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient    : DiscoveryClient_CONFIG-CLIENT/LONGTONG.mshome.net:config-client:8453 - registration status: 204
    2022-06-22 16:04:45.173  INFO 14964 --- [ionShutdownHook] com.netflix.discovery.DiscoveryClient    : Unregistering ...
    2022-06-22 16:04:45.173  INFO 14964 --- [ionShutdownHook] com.netflix.discovery.DiscoveryClient    : DiscoveryClient_CONFIG-CLIENT/LONGTONG.mshome.net:config-client:8453 - deregister  status: 200
    2022-06-22 16:04:45.189  INFO 14964 --- [ionShutdownHook] com.netflix.discovery.DiscoveryClient    : Completed shut down of DiscoveryClient
    
    Process finished with exit code 0

其中，出了问题的大概可以从这里排查。 ![54e3905300184ab0804f5168666483a2.png][]

前面显示注册成功了，现在立马又开始倒戈。这是由于可能SpringWeb依赖是继承父模块的，所以我们这个模块里没有写Web依赖。

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

在我们这个模块pom文件里加上web依赖就搞定了。

[54e3905300184ab0804f5168666483a2.png]: https://img-blog.csdnimg.cn/54e3905300184ab0804f5168666483a2.png