feign.RetryableException：读取超时，执行GET http：// forex-service / currency-exchange / from / EUR / to / INR \ r \ n \ tat feign.FeignException.errorExecu

Question

我正在跟踪来自http://www.springboottutorial.com/microservices-with-spring-boot-part-5-eureka-naming-server的微服务代码，并使用Spring Boot和Spring Cloud的最新版本，到目前为止是2.1.2.RELEASE和Greenwich.RC2。

当我点击

  

卷曲-XGET http://localhost:8100/currency-converter-feign/from/EUR/to/INR/quantity/10000

我遇到了错误。

  

{“时间戳”：“ 2019-01-21T16：48：19.250 + 0000”，“状态”：500，“错误”：“内部服务器错误”，“消息”：“读取超时，执行GET {{ 3}}“，” trace“：” feign.RetryableException：读取超时，执行GET http://forex-service/currency-exchange/from/EUR/to/INR \ r \ n \ tat feign.FeignException.errorExecuting（FeignException.java:84）\ r \ n \ tat feign。 SynchronousMethodHandler.executeAndDecode（SynchronousMethodHandler.java:113）\ r \ n \ t feign.SynchronousMethodHandler.invoke（SynchronousMethodHandler.java:78）\ r \ n \ tat feign.ReflectiveFeign $ FeignInvocationHandler.invoke（ReflectiveFeign.java:103）\ r \ n \ tat com.sun.proxy。$ Proxy84.retrieveExchangeValue（未知来源）\ r \ n \ tat com.prateek.currencyconversion.CurrencyConversionController.convertCurrencyFeign（CurrencyConversionController.java:47）\ r \ n \ tat sun.reflect。 NativeMethodAccessorImpl.invoke0（本机方法）\ r \ n \ tat sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）\ r \ n \ tat sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）\ r \ n n \ tat java.lang.refl ect.Method.invoke（Method.java:498）\ r \ n \ tat org.springframework.web.method.support.InvocableHandlerMethod.doInvoke（InvocableHandlerMethod.java:189）\ r \ n \ tat org.springframework.web。 method.support.InvocableHandlerMethod.invokeForRequest（InvocableHandlerMethod.java:138）\ r \ n \ tat org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle（ServletInvocableHandlerMethod.java:102）\ r \ n \ tat org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod（RequestMappingHandlerAdapter.java:895）\ r \ n \ tat org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal（RequestMappingHandlerAdapter。 java：800）\ r \ n \ tat org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle（AbstractHandlerMethodAdapter.java:87）\ r \ n \ tat org.springframework.web.servlet.DispatcherServlet.doDispatch（ DispatcherServlet.java:1038)\r\n\tat org.springframework.web.servlet.DispatcherServlet.doService （DispatcherServlet.java:942)\r\n\t org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:1005）\ r \ n \ tat org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet .java：897）\ r \ n \ tat javax.servlet.http.HttpServlet.service（HttpServlet.java:634）\ r \ n \ tat org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:882 ）\ r \ n \ tat javax.servlet.http.HttpServlet.service（HttpServlet.java:741）\ r \ n \ tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:231）\ r \ n \ tat org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）\ r \ n \ tat org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:53）\ r \ n \ tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）\ r \ n \ tat org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）\ r \ n \ tat org.springframework.web.filter.RequestContextFilter.doFi lterInternal（RequestContextFilter.java:99）\ r \ n \ tat org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）\ r \ n \ tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ ApplicationFilterChain.java:193)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）\ r \ n \ tat org.springframework.web.filter.FormContentFilter.doFilterInternal（FormContentFilter。 java：92）\ r \ n \ tat org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）\ r \ n \ tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java： 193）\ r \ n \ tat org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）\ r \ n \ tat org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal（HiddenHttpMethodFilter.java:93） \ r \ n \ tat org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）\ r \ n \ tat org.apache.catalina.core.Appl icationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）\ r \ n \ tat org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）\ r \ n \ tat org.springframework.web.filter.CharacterEncodingFilter。 doFilterInternal（CharacterEncodingFilter.java:200）\ r \ n \ tat org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）\ r \ n \ tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ ApplicationFilterChain.java:193)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）\ r \ n \ tat org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve。 java：199）\ r \ n \ tat org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:96）\ r \ n \ tat org.apache.catalina.authenticator.AuthenticatorBase.invoke（AuthenticatorBase.java： 490）\ r \ n \ tat org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:139）\ r \ n \ tat org.apache.catalina.valves.ErrorReportValve .invoke（ErrorReportValve.java:92）\ r \ n \ tat org.apache.catalina.core.StandardEngineValve.invoke（StandardEngineValve.java:74）\ r \ n \ tat org.apache.catalina.connector.CoyoteAdapter.service （CoyoteAdapter.java:343)\r\n\tat org.apache.coyote.http11.Http11Processor.service（Http11Processor.java:408）\ r \ n \ tat org.apache.coyote.AbstractProcessorLight.process（AbstractProcessorLight.java ：66）\ r \ n \ tat org.apache.coyote.AbstractProtocol $ ConnectionHandler.process（AbstractProtocol.java:834）\ r \ n \ tat org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun（NioEndpoint .java：1417）\ r \ n \ tat org.apache.tomcat.util.net.SocketProcessorBase.run（SocketProcessorBase.java:49）\ r \ n \ tat java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java ：1149）\ r \ n \ tat java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:624）\ r \ n \ tat org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run（TaskThread .java：61）\ r \ n \ tat java.lang.Thread.run（Thread.java:748）\ r \ n原因：java.net.SocketTim eoutException：读取超时\ r \ n \ tat java.net.SocketInputStream.socketRead0（本机方法）\ r \ n \ tat java.net.SocketInputStream.socketRead（SocketInputStream.java:116）\ r \ n \ tat java。 net.SocketInputStream.read（SocketInputStream.java:171）\ r \ n \ tat java.net.SocketInputStream.read（SocketInputStream.java:141）\ r \ n \ tat java.io.BufferedInputStream.fill（BufferedInputStream.java： 246）\ r \ n \ tat java.io.BufferedInputStream.read1（BufferedInputStream.java:286）\ r \ n \ tat java.io.BufferedInputStream.read（BufferedInputStream.java:345）\ r \ n \ tat sun。 net.www.http.HttpClient.parseHTTPHeader（HttpClient.java:735）\ r \ n \ t sun.net.www.http.HttpClient.parseHTTP（HttpClient.java:678）\ r \ n \ tat sun.net www.protocol.http.HttpURLConnection.getInputStream0（HttpURLConnection.java:1587）\ r \ n \ tat sun.net.www.protocol.http.HttpURLConnection.getInputStream（HttpURLConnection.java:1492）\ r \ n \ tat java。 net.HttpURLConnection.getResponseCode（HttpURLConnection.java:480）\ r \ n \ t feign.Client $ Default.convertResponse（Client.java:143）\ r \ n \ tat fe ign.Client $ Default.execute（Client.java:68）\ r \ n \ tat org.springframework.cloud.openfeign.ribbon.FeignLoadBalancer.execute（FeignLoadBalancer.java:90）\ r \ n \ tat org.springframework。 cloud.openfeign.ribbon.FeignLoadBalancer.execute（FeignLoadBalancer.java:56）\ r \ n \ tat com.netflix.client.AbstractLoadBalancerAwareClient $ 1.call（AbstractLoadBalancerAwareClient.java:104）\ r \ n \ tat com.netflix.loadbalancer .reactive.LoadBalancerCommand $ 3 $ 1.call（LoadBalancerCommand.java:303）\ r \ n \ tat com.netflix.loadbalancer.reactive.LoadBalancerCommand $ 3 $ 1.call（LoadBalancerCommand.java:287）\ r \ n \ tat rx.internal .util.ScalarSynchronousObservable $ 3.call（ScalarSynchronousObservable.java:231）\ r \ n \ tat rx.internal.util.ScalarSynchronousObservable $ 3.call（ScalarSynchronousObservable.java:228）\ r \ n \ tat rx.Observable。 .java：10327）\ r \ n \ tat rx.internal.operators.OnSubscribeConcatMap $ ConcatMapSubscriber.drain（OnSubscribeConcatMap.java:286）\ r \ n \ tat rx.internal.operators.OnSubscribeConcatMap $ ConcatMapSubscriber.onN ext（OnSubscribeCo100 10754 0 10754 0 0 2397 0-：-：-0:00:04-：-：-25201.call（LoadBalancerCommand.java:185）\ r \ n \ tat com.netflix .loadbalancer.reactive.LoadBalancerCommand $ 1.call（LoadBalancerCommand.java:180）\ r \ n \ tat rx.Observable.unsafeSubscribe（Observable.java:10327）\ r \ n \ tat rx.internal.operators.OnSubscribeConcatMap.call（ OnSubscribeConcatMap.java:94)\r\n\tat rx.internal.operators.OnSubscribeConcatMap.call（OnSubscribeConcatMap.java:42）\ r \ n \ tat rx.Observable.unsafeSubscribe（Observable.java:10327）\ r \ n \ tat rx.internal.operators.OperatorRetryWithPredicate $ SourceSubscriber $ 1.call（OperatorRetryWithPredicate.java:127）\ r \ n \ tat rx.internal.schedulers.TrampolineScheduler $ InnerCurrentThreadScheduler.enqueue（TrampolineScheduler \ java：73）\ r tat rx.internal.schedulers.TrampolineScheduler $ InnerCurrentThreadScheduler.schedule（TrampolineScheduler.java:52）\ r \ n \ tat rx.internal.operators.OperatorRetryWithPredicate $ SourceSubscriber.onNext（OperatorRetryWithPredicate.java:79）\ r \ n rx.internal.operators.OperatorRetryWithPredicate $ SourceSubscriber.onNext（OperatorRetryWithPredicate.java:45）\ r \ n \ tat rx.internal.util.ScalarSynchronousObservable $ WeakSingleProducer.request（ScalarSynchronousObservable.java:276） Subscriber.setProducer（Subscriber.java:209）\ r \ n \ tat rx.internal.util.ScalarSynchronousObservable $ JustOnSubscribe.call（ScalarSynchronousObservable.java:138）\ r \ n \ tat rx.internal.util.ScalarSynchronousObservable $ Just调用（ScalarSynchronousObservable.java:129)\r\n\tat rx.internal.operators.OnSubscribeLift.call（OnSubscribeLift.java:48）\ r \ n \ tat rx.internal.operators.OnSubscribeLift.call（OnSubscribeLift.java： 30）\ r \ n \ tat rx.internal.operators.OnSubscribeLift.call（OnSubscribeLift.java:48）\ r \ n \ tat rx.internal.operators.OnSubscribeLift.call（OnSubscribeLift.java:30）\ r \ n \ tat rx.internal.operators.OnSubscribeLift.call（OnSubscribeLift.java:48）\ r \ n \ tat rx.internal.operators.OnSubscribeLift.call（OnSubscribeLift.java:30）\ r \ n \ tat rx.Observable。订阅（Obser vable.java:10423)\r\n\tat rx.Observable.subscribe（Observable.java:10390）\ r \ n \ tat rx.observables.BlockingObservable.blockForSingle（BlockingObservable.java:443）\ r \ n \ tat rx.observables.BlockingObservable.single（BlockingObservable.java:340）\ r \ n \ tat com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer（AbstractLoadBalancerAwareClient.java:112）\ r \ n \ tat org.springframework.cloud.openfeign ribbon.LoadBalancerFeignClient.execute（LoadBalancerFeignClient.java:65）\ r \ n \ t feign.SynchronousMethodHandler.executeAndDecode（SynchronousMethodHandler.java:108）\ r \ n \ t ... 58 more \ r \ n“，” path“ ：“ / currency-converter-feign / from / EUR / to / INR / quantity / 10000”}

http://forex-service/currency-exchange/from/EUR/to/INR

Answer 1

我不确定通过添加以下更改现在如何正常工作。

<repositories>
    <repository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </repository>
    <repository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
</repositories>

<pluginRepositories>
    <pluginRepository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </pluginRepository>
    <pluginRepository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </pluginRepository>
</pluginRepositories>