springcloud遇到的各种坑

Love The Way You Lie 2023-02-12 14:25 114阅读 0赞

# 一、报错信息如下：org.springframework.web.client.ResourceAccessException #

2020-05-26 14:53:16.212  WARN [,,,] 14348 --- [ender@7cef0200}] z.r.AsyncReporter$BoundedAsyncReporter   : Spans were dropped due to exceptions. All subsequent errors will be logged at FINE level.
    2020-05-26 14:53:16.219  WARN [,,,] 14348 --- [ender@7cef0200}] z.r.AsyncReporter$BoundedAsyncReporter   : Dropped 2 spans due to ResourceAccessException(I/O error on POST request for "http://localhost:9411/api/v2/spans": connect timed out; nested exception is java.net.SocketTimeoutException: connect timed out)
    
    org.springframework.web.client.ResourceAccessException: I/O error on POST request for "http://localhost:9411/api/v2/spans": connect timed out; nested exception is java.net.SocketTimeoutException: connect timed out
    	at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:751) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.cloud.sleuth.zipkin2.sender.ZipkinRestTemplateWrapper.doExecute(ZipkinRestTemplateSenderConfiguration.java:228) ~[spring-cloud-sleuth-zipkin-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:644) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.cloud.sleuth.zipkin2.sender.RestTemplateSender.post(RestTemplateSender.java:129) ~[spring-cloud-sleuth-zipkin-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.cloud.sleuth.zipkin2.sender.RestTemplateSender$HttpPostCall.doExecute(RestTemplateSender.java:142) ~[spring-cloud-sleuth-zipkin-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.cloud.sleuth.zipkin2.sender.RestTemplateSender$HttpPostCall.doExecute(RestTemplateSender.java:132) ~[spring-cloud-sleuth-zipkin-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at zipkin2.Call$Base.execute(Call.java:380) ~[zipkin-2.19.0.jar:na]
    	at zipkin2.reporter.AsyncReporter$BoundedAsyncReporter.flush(AsyncReporter.java:285) ~[zipkin-reporter-2.11.0.jar:na]
    	at zipkin2.reporter.AsyncReporter$Flusher.run(AsyncReporter.java:354) [zipkin-reporter-2.11.0.jar:na]
    	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
    Caused by: java.net.SocketTimeoutException: connect timed out
    	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[na:1.8.0_181]
    	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) ~[na:1.8.0_181]
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_181]
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_181]
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_181]
    	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[na:1.8.0_181]
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_181]
    	at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_181]
    	at sun.net.NetworkClient.doConnect(NetworkClient.java:175) ~[na:1.8.0_181]
    	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463) ~[na:1.8.0_181]
    	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558) ~[na:1.8.0_181]
    	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242) ~[na:1.8.0_181]
    	at sun.net.www.http.HttpClient.New(HttpClient.java:339) ~[na:1.8.0_181]
    	at sun.net.www.http.HttpClient.New(HttpClient.java:357) ~[na:1.8.0_181]
    	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220) ~[na:1.8.0_181]
    	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156) ~[na:1.8.0_181]
    	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050) ~[na:1.8.0_181]
    	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984) ~[na:1.8.0_181]
    	at org.springframework.http.client.SimpleBufferingClientHttpRequest.executeInternal(SimpleBufferingClientHttpRequest.java:76) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:53) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:742) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	... 9 common frames omitted

# 二、IDEA快速打开Run DashBoard窗口 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70]  
**解决办法看参考链接：**

## [参考链接地址][Link 1] ##

# 三、Request execution error. endpoint=DefaultEndpoint\{ serviceUrl='http://localhost:8761/eureka/\} #

2020-05-27 11:42:04.550 ERROR [,,,] 1128 --- [  restartedMain] c.n.d.s.t.d.RedirectingEurekaHttpClient  : Request execution error. endpoint=DefaultEndpoint{  serviceUrl='http://localhost:8761/eureka/}
    
    com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused: connect
    	at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:187) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
    	at com.sun.jersey.api.client.filter.GZIPContentEncodingFilter.handle(GZIPContentEncodingFilter.java:123) ~[jersey-client-1.19.1.jar:1.19.1]
    	at com.netflix.discovery.EurekaIdentityHeaderFilter.handle(EurekaIdentityHeaderFilter.java:27) ~[eureka-client-1.9.13.jar:1.9.13]
    	at com.sun.jersey.api.client.Client.handle(Client.java:652) ~[jersey-client-1.19.1.jar:1.19.1]
    	at com.sun.jersey.api.client.WebResource.handle(WebResource.java:682) ~[jersey-client-1.19.1.jar:1.19.1]
    	at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) ~[jersey-client-1.19.1.jar:1.19.1]
    	at com.sun.jersey.api.client.WebResource$Builder.get(WebResource.java:509) ~[jersey-client-1.19.1.jar:1.19.1]
    	at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.getApplicationsInternal(AbstractJerseyEurekaHttpClient.java:194) ~[eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.getApplications(AbstractJerseyEurekaHttpClient.java:165) ~[eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.MetricsCollectingEurekaHttpClient.execute(MetricsCollectingEurekaHttpClient.java:73) ~[eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.executeOnNewServer(RedirectingEurekaHttpClient.java:118) ~[eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.execute(RedirectingEurekaHttpClient.java:79) ~[eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:120) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.java:1069) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:983) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:430) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:276) [eureka-client-1.9.13.jar:1.9.13]
    	at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:272) [eureka-client-1.9.13.jar:1.9.13]
    	at org.springframework.cloud.netflix.eureka.CloudEurekaClient.<init>(CloudEurekaClient.java:67) [spring-cloud-netflix-eureka-client-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.eurekaClient(EurekaClientAutoConfiguration.java:324) [spring-cloud-netflix-eureka-client-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
    	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
    	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
    	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) [spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) [spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:636) [spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) [spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) [spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) [spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) [spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$1(AbstractBeanFactory.java:359) [spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.cloud.context.scope.GenericScope$BeanLifecycleWrapper.getBean(GenericScope.java:389) ~[spring-cloud-context-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.cloud.context.scope.GenericScope.get(GenericScope.java:186) ~[spring-cloud-context-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:356) [spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) [spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration.getTargetObject(EurekaRegistration.java:129) ~[spring-cloud-netflix-eureka-client-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration.getEurekaClient(EurekaRegistration.java:117) ~[spring-cloud-netflix-eureka-client-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
    	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
    	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
    	at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:282) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.cloud.context.scope.GenericScope$LockedScopedProxyFactoryBean.invoke(GenericScope.java:499) ~[spring-cloud-context-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration$$EnhancerBySpringCGLIB$$340ac289.getEurekaClient(<generated>) ~[spring-cloud-netflix-eureka-client-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.maybeInitializeClient(EurekaServiceRegistry.java:57) ~[spring-cloud-netflix-eureka-client-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.register(EurekaServiceRegistry.java:38) ~[spring-cloud-netflix-eureka-client-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration.start(EurekaAutoServiceRegistration.java:83) ~[spring-cloud-netflix-eureka-client-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:894) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:162) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]
    	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at cn.wwfww.springcloud.CloudConsumerOrder80Application.main(CloudConsumerOrder80Application.java:19) ~[classes/:na]
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
    	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
    	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
    	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    Caused by: java.net.ConnectException: Connection refused: connect

原因：没有连上注册中心eureka  
解决方法：  
将依赖删除(不想删除Eureka就配置Eureka)

<dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            </dependency>

# 四、org.springframework.web.client.ResourceAccessException: I/O error on POST request for “http://localhost:9411/api/v2/spans”: #

org.springframework.web.client.ResourceAccessException: I/O error on POST request for "http://localhost:9411/api/v2/spans": connect timed out; nested exception is java.net.SocketTimeoutException: connect timed out
    	at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:751) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.cloud.sleuth.zipkin2.sender.ZipkinRestTemplateWrapper.doExecute(ZipkinRestTemplateSenderConfiguration.java:228) ~[spring-cloud-sleuth-zipkin-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:644) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.cloud.sleuth.zipkin2.sender.RestTemplateSender.post(RestTemplateSender.java:129) ~[spring-cloud-sleuth-zipkin-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.cloud.sleuth.zipkin2.sender.RestTemplateSender$HttpPostCall.doExecute(RestTemplateSender.java:142) ~[spring-cloud-sleuth-zipkin-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.springframework.cloud.sleuth.zipkin2.sender.RestTemplateSender$HttpPostCall.doExecute(RestTemplateSender.java:132) ~[spring-cloud-sleuth-zipkin-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at zipkin2.Call$Base.execute(Call.java:380) ~[zipkin-2.19.0.jar:na]
    	at zipkin2.reporter.AsyncReporter$BoundedAsyncReporter.flush(AsyncReporter.java:285) ~[zipkin-reporter-2.11.0.jar:na]
    	at zipkin2.reporter.AsyncReporter$Flusher.run(AsyncReporter.java:354) [zipkin-reporter-2.11.0.jar:na]
    	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
    Caused by: java.net.SocketTimeoutException: connect timed out
    	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[na:1.8.0_181]
    	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) ~[na:1.8.0_181]
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_181]
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_181]
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_181]
    	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[na:1.8.0_181]
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_181]
    	at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_181]
    	at sun.net.NetworkClient.doConnect(NetworkClient.java:175) ~[na:1.8.0_181]
    	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463) ~[na:1.8.0_181]
    	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558) ~[na:1.8.0_181]
    	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242) ~[na:1.8.0_181]
    	at sun.net.www.http.HttpClient.New(HttpClient.java:339) ~[na:1.8.0_181]
    	at sun.net.www.http.HttpClient.New(HttpClient.java:357) ~[na:1.8.0_181]
    	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220) ~[na:1.8.0_181]
    	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156) ~[na:1.8.0_181]
    	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050) ~[na:1.8.0_181]
    	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984) ~[na:1.8.0_181]
    	at org.springframework.http.client.SimpleBufferingClientHttpRequest.executeInternal(SimpleBufferingClientHttpRequest.java:76) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:53) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:742) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	... 9 common frames omitted

原因：

pom依赖中含有 zipkin 依赖，没有配置 zipkin-server, 默认提交9411

解决办法：将这个依赖删除

<dependency
               <groupId>org.springframework.cloud</groupId>-->
               <artifactId>spring-cloud-starter-zipkin</artifactId>-->
           </dependency>

[参考链接][Link 2]

# 五、org.springframework.web.util.NestedServletException: Request processing failed #

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://CLOUD-PAYMENT-SERVICE/payment/payment/getPayment/223": CLOUD-PAYMENT-SERVICE; nested exception is java.net.UnknownHostException: CLOUD-PAYMENT-SERVICE
    	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at brave.servlet.TracingFilter.doFilter(TracingFilter.java:65) [brave-instrumentation-servlet-5.9.0.jar:na]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.springframework.cloud.sleuth.instrument.web.ExceptionLoggingFilter.doFilter(ExceptionLoggingFilter.java:50) ~[spring-cloud-sleuth-core-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at brave.servlet.TracingFilter.doFilter(TracingFilter.java:82) [brave-instrumentation-servlet-5.9.0.jar:na]
    	at org.springframework.cloud.sleuth.instrument.web.LazyTracingFilter.doFilter(TraceWebServletAutoConfiguration.java:138) [spring-cloud-sleuth-core-2.2.1.RELEASE.jar:2.2.1.RELEASE]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108) [spring-boot-actuator-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1591) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_181]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_181]
    	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.29.jar:9.0.29]
    	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
    Caused by: org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://CLOUD-PAYMENT-SERVICE/payment/payment/getPayment/223": CLOUD-PAYMENT-SERVICE; nested exception is java.net.UnknownHostException: CLOUD-PAYMENT-SERVICE
    	at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:751) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:677) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.client.RestTemplate.getForObject(RestTemplate.java:318) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at cn.wwfww.springcloud.controller.OrderController.getPayment(OrderController.java:47) ~[classes/:na]
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
    	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
    	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
    	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	... 51 common frames omitted
    Caused by: java.net.UnknownHostException: CLOUD-PAYMENT-SERVICE

原因：

注入RestTemplate时没有加@LoadBalanced注解

解决办法：添加@LoadBalanced注解，如下所示：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70 1]

# 六、[Eureka自我保护机制开启了但是服务还是被删掉了][Eureka] #

# 七、整合zookeeper时项目启动报错 #

org.apache.zookeeper.KeeperException$UnimplementedException: KeeperErrorCode = Unimplemented for /services/cloud-payment-service/32122bf4-cb1e-495f-bdcb-38098889ee6c
    	at org.apache.zookeeper.KeeperException.create(KeeperException.java:103) ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
    	at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
    	at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:1525) ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
    	at org.apache.curator.framework.imps.CreateBuilderImpl$17.call(CreateBuilderImpl.java:1181) ~[curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.framework.imps.CreateBuilderImpl$17.call(CreateBuilderImpl.java:1158) ~[curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.connection.StandardConnectionHandlingPolicy.callWithRetry(StandardConnectionHandlingPolicy.java:64) ~[curator-client-4.0.1.jar:na]
    	at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:100) ~[curator-client-4.0.1.jar:na]
    	at org.apache.curator.framework.imps.CreateBuilderImpl.pathInForeground(CreateBuilderImpl.java:1155) ~[curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.framework.imps.CreateBuilderImpl.protectedPathInForeground(CreateBuilderImpl.java:605) ~[curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:595) ~[curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:49) ~[curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.x.discovery.details.ServiceDiscoveryImpl.internalRegisterService(ServiceDiscoveryImpl.java:236) ~[curator-x-discovery-4.0.1.jar:na]
    	at org.apache.curator.x.discovery.details.ServiceDiscoveryImpl.reRegisterServices(ServiceDiscoveryImpl.java:456) ~[curator-x-discovery-4.0.1.jar:na]
    	at org.apache.curator.x.discovery.details.ServiceDiscoveryImpl.access$100(ServiceDiscoveryImpl.java:58) ~[curator-x-discovery-4.0.1.jar:na]
    	at org.apache.curator.x.discovery.details.ServiceDiscoveryImpl$1.stateChanged(ServiceDiscoveryImpl.java:78) ~[curator-x-discovery-4.0.1.jar:na]
    	at org.apache.curator.framework.state.ConnectionStateManager$2.apply(ConnectionStateManager.java:274) [curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.framework.state.ConnectionStateManager$2.apply(ConnectionStateManager.java:270) [curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.framework.listen.ListenerContainer$1.run(ListenerContainer.java:93) [curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.shaded.com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:435) [curator-client-4.0.1.jar:na]
    	at org.apache.curator.framework.listen.ListenerContainer.forEach(ListenerContainer.java:85) [curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.framework.state.ConnectionStateManager.processEvents(ConnectionStateManager.java:268) [curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.framework.state.ConnectionStateManager.access$000(ConnectionStateManager.java:44) [curator-framework-4.0.1.jar:4.0.1]
    	at org.apache.curator.framework.state.ConnectionStateManager$1.call(ConnectionStateManager.java:120) [curator-framework-4.0.1.jar:4.0.1]
    	at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) [na:1.8.0_181]
    	at java.util.concurrent.FutureTask.run(FutureTask.java) [na:1.8.0_181]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_181]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_181]
    	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]

原因：

zookeeper自带jar包版本冲突

解决办法：  
排除自带的jar包，因为我用的zookeeper是3.4.9的，所以先排除自带的3.5.3jar包，在引入3.4.9的包

<dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>
                
                <exclusions>
                    <exclusion>
                        <groupId>org.apache.zookeeper</groupId>
                        <artifactId>zookeeper</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            
            
            <dependency>
                <groupId>org.apache.zookeeper</groupId>
                <artifactId>zookeeper</artifactId>
                <version>3.4.9</version>
            </dependency>

# 八、启动报java.lang.IllegalStateException: Failed to load property source from location ‘classpath:/application.yml’ #

java.lang.IllegalStateException: Failed to load property source from location 'classpath:/application.yml'
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:545) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadForFileExtension(ConfigFileApplicationListener.java:494) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:464) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$null$7(ConfigFileApplicationListener.java:443) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_181]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$8(ConfigFileApplicationListener.java:443) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_181]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:440) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$0(ConfigFileApplicationListener.java:335) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.FilteredPropertySource.apply(FilteredPropertySource.java:54) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:323) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:214) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:198) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:188) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:176) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:345) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at cn.wwfww.springcloud.CloudProviderPayment9001Application.main(CloudProviderPayment9001Application.java:24) [classes/:na]
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
    	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
    	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
    	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    Caused by: org.yaml.snakeyaml.scanner.ScannerException: while scanning for the next token
    found character '`' that cannot start any token. (Do not use ` for indentation)
     in 'reader', line 4, column 3:
          `port: 9001
          ^
    
    	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:419) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingValue.produce(ParserImpl.java:586) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:148) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:124) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:239) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:230) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:218) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:144) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:85) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:125) ~[snakeyaml-1.25.jar:na]
    	at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:548) ~[snakeyaml-1.25.jar:na]
    	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:160) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:134) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
    	at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:75) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadDocuments(ConfigFileApplicationListener.java:562) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:518) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
    	... 30 common frames omitted
    
    Disconnected from the target VM, address: '127.0.0.1:61184', transport: 'socket'
    
    Process finished with exit code 0

原因：  
application.yml里面写错，主要观察是否多出空格和多打了写什么

解决办法：这次我不小心按到键盘多了个符号，去掉就行  
![排除自带的jar包，因为我用的zookeeper是3.4.9的，所以先排除自带的3.5.3jar包，在引入3.4.9的包][jar_zookeeper_3.4.9_3.5.3jar_3.4.9]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200526203411604.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw==,size_16,color_FFFFFF,t_70
[Link 1]: https://blog.csdn.net/weixin_43814195/article/details/92806513?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522159049657619726869006054%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=159049657619726869006054&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_v2~rank_v25-1-92806513.nonecase&utm_term=IDEA%E5%BF%AB%E9%80%9F%E6%89%93%E5%BC%80Run%20DashBoard%E7%AA%97%E5%8F%A3
[Link 2]: https://gitee.com/log4j/pig/issues/I161YA#note_2119281
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200528152607510.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw==,size_16,color_FFFFFF,t_70
[Eureka]: https://blog.csdn.net/weixin_43085797/article/details/106420341
[jar_zookeeper_3.4.9_3.5.3jar_3.4.9]: https://img-blog.csdnimg.cn/20200610105613779.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw==,size_16,color_FFFFFF,t_70