zuul报错java.net.UnknownHostException: 4d59d509898a: Name or service not known

是这样的，eureka、zuul和普通的微服务在本地是OK的，部署到docker后，通过zuul访问某个微服务就报错了。用的是serviceId的方式，在eureka界面也能看到各个微服务都是在线的，没有问题，但就是通过zuul的路由访问时会报错。

com.netflix.zuul.exception.ZuulException: Forwarding error 2017/11/24 下午9:49:18 at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.handleException(RibbonRoutingFilter.java:188) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar!/:1.3.5.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.forward(RibbonRoutingFilter.java:163) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar!/:1.3.5.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.run(RibbonRoutingFilter.java:111) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar!/:1.3.5.RELEASE] 2017/11/24 下午9:49:18 at com.netflix.zuul.ZuulFilter.runFilter(ZuulFilter.java:112) ~[zuul-core-1.3.0.jar!/:1.3.0] 2017/11/24 下午9:49:18 at com.netflix.zuul.FilterProcessor.processZuulFilter(FilterProcessor.java:193) ~[zuul-core-1.3.0.jar!/:1.3.0] 2017/11/24 下午9:49:18 at com.netflix.zuul.FilterProcessor.runFilters(FilterProcessor.java:157) ~[zuul-core-1.3.0.jar!/:1.3.0] 2017/11/24 下午9:49:18 at com.netflix.zuul.FilterProcessor.route(FilterProcessor.java:118) ~[zuul-core-1.3.0.jar!/:1.3.0] 2017/11/24 下午9:49:18 at com.netflix.zuul.ZuulRunner.route(ZuulRunner.java:96) ~[zuul-core-1.3.0.jar!/:1.3.0] 2017/11/24 下午9:49:18 at com.netflix.zuul.http.ZuulServlet.route(ZuulServlet.java:116) ~[zuul-core-1.3.0.jar!/:1.3.0] 2017/11/24 下午9:49:18 at com.netflix.zuul.http.ZuulServlet.service(ZuulServlet.java:81) ~[zuul-core-1.3.0.jar!/:1.3.0] 2017/11/24 下午9:49:18 at org.springframework.web.servlet.mvc.ServletWrappingController.handleRequestInternal(ServletWrappingController.java:157) [spring-webmvc-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.cloud.netflix.zuul.web.ZuulController.handleRequest(ZuulController.java:44) [spring-cloud-netflix-core-1.3.5.RELEASE.jar!/:1.3.5.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:50) [spring-webmvc-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) [spring-webmvc-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) [spring-webmvc-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) [spring-webmvc-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) [spring-webmvc-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55) [spring-boot-1.5.7.RELEASE.jar!/:1.5.7.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110) [spring-boot-actuator-1.5.7.RELEASE.jar!/:1.5.7.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) [spring-boot-actuator-1.5.7.RELEASE.jar!/:1.5.7.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar!/:4.3.11.RELEASE] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1457) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_111] 2017/11/24 下午9:49:18 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_111] 2017/11/24 下午9:49:18 at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.20.jar!/:8.5.20] 2017/11/24 下午9:49:18 at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111] 2017/11/24 下午9:49:18Caused by: com.netflix.client.ClientException: null 2017/11/24 下午9:49:18 at com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer(AbstractLoadBalancerAwareClient.java:123) ~[ribbon-loadbalancer-2.2.2.jar!/:2.2.2] 2017/11/24 下午9:49:18 at org.springframework.cloud.netflix.zuul.filters.route.support.AbstractRibbonCommand.run(AbstractRibbonCommand.java:105) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar!/:1.3.5.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.cloud.netflix.zuul.filters.route.support.AbstractRibbonCommand.run(AbstractRibbonCommand.java:43) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar!/:1.3.5.RELEASE] 2017/11/24 下午9:49:18 at com.netflix.hystrix.HystrixCommand$2.call(HystrixCommand.java:302) ~[hystrix-core-1.5.12.jar!/:1.5.12] 2017/11/24 下午9:49:18 at com.netflix.hystrix.HystrixCommand$2.call(HystrixCommand.java:298) ~[hystrix-core-1.5.12.jar!/:1.5.12] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:46) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeMap.call(OnSubscribeMap.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeMap.call(OnSubscribeMap.java:33) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.subscribe(Observable.java:10307) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.subscribe(Observable.java:10274) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.BlockingOperatorToFuture.toFuture(BlockingOperatorToFuture.java:51) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.observables.BlockingObservable.toFuture(BlockingObservable.java:412) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at com.netflix.hystrix.HystrixCommand.queue(HystrixCommand.java:378) ~[hystrix-core-1.5.12.jar!/:1.5.12] 2017/11/24 下午9:49:18 at com.netflix.hystrix.HystrixCommand.execute(HystrixCommand.java:344) ~[hystrix-core-1.5.12.jar!/:1.5.12] 2017/11/24 下午9:49:18 at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.forward(RibbonRoutingFilter.java:157) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar!/:1.3.5.RELEASE] 2017/11/24 下午9:49:18 ... 71 common frames omitted 2017/11/24 下午9:49:18Caused by: java.lang.RuntimeException: java.net.UnknownHostException: 4d59d509898a: Name or service not known 2017/11/24 下午9:49:18 at rx.exceptions.Exceptions.propagate(Exceptions.java:58) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:465) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.observables.BlockingObservable.single(BlockingObservable.java:342) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer(AbstractLoadBalancerAwareClient.java:117) ~[ribbon-loadbalancer-2.2.2.jar!/:2.2.2] 2017/11/24 下午9:49:18 ... 133 common frames omitted 2017/11/24 下午9:49:18Caused by: java.net.UnknownHostException: 4d59d509898a: Name or service not known 2017/11/24 下午9:49:18 at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) ~[na:1.8.0_111] 2017/11/24 下午9:49:18 at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) ~[na:1.8.0_111] 2017/11/24 下午9:49:18 at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) ~[na:1.8.0_111] 2017/11/24 下午9:49:18 at java.net.InetAddress.getAllByName0(InetAddress.java:1276) ~[na:1.8.0_111] 2017/11/24 下午9:49:18 at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_111] 2017/11/24 下午9:49:18 at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_111] 2017/11/24 下午9:49:18 at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:112) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:359) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:381) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:237) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:111) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.3.jar!/:4.5.3] 2017/11/24 下午9:49:18 at org.springframework.cloud.netflix.ribbon.apache.RibbonLoadBalancingHttpClient.execute(RibbonLoadBalancingHttpClient.java:94) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar!/:1.3.5.RELEASE] 2017/11/24 下午9:49:18 at org.springframework.cloud.netflix.ribbon.apache.RibbonLoadBalancingHttpClient.execute(RibbonLoadBalancingHttpClient.java:43) ~[spring-cloud-netflix-core-1.3.5.RELEASE.jar!/:1.3.5.RELEASE] 2017/11/24 下午9:49:18 at com.netflix.client.AbstractLoadBalancerAwareClient$1.call(AbstractLoadBalancerAwareClient.java:109) ~[ribbon-loadbalancer-2.2.2.jar!/:2.2.2] 2017/11/24 下午9:49:18 at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:303) ~[ribbon-loadbalancer-2.2.2.jar!/:2.2.2] 2017/11/24 下午9:49:18 at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:287) ~[ribbon-loadbalancer-2.2.2.jar!/:2.2.2] 2017/11/24 下午9:49:18 at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:231) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:228) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.drain(OnSubscribeConcatMap.java:286) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.onNext(OnSubscribeConcatMap.java:144) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:185) ~[ribbon-loadbalancer-2.2.2.jar!/:2.2.2] 2017/11/24 下午9:49:18 at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:180) ~[ribbon-loadbalancer-2.2.2.jar!/:2.2.2] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:94) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:42) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.unsafeSubscribe(Observable.java:10211) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber$1.call(OperatorRetryWithPredicate.java:127) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.enqueue(TrampolineScheduler.java:73) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.schedule(TrampolineScheduler.java:52) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:79) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:45) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Subscriber.setProducer(Subscriber.java:209) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.subscribe(Observable.java:10307) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.Observable.subscribe(Observable.java:10274) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:445) ~[rxjava-1.1.10.jar!/:1.1.10] 2017/11/24 下午9:49:18 ... 135 common frames omitted 2017/11/24 下午9:49:18 2017/11/24 下午9:49:182017-11-24 21:49:18.865  INFO 1 --- [erListUpdater-0] c.netflix.config.ChainedDynamicProperty  : Flipping property: ec_server_scheduls.ribbon.ActiveConnectionsLimit to use NEXT property: niws.loadbalancer.availabilityFilteringRule.activeConnectionsLimit = 2147483647 2017/11/24 下午9:49:302017-11

解决方案如下：

在微服务里加上这个配置：

eureka:
  instance:
    prefer-ip-address: true

然后就OK了

估计是加上后，就把ip注册到eureka了，不加的话我看过eureka注册界面，是以docker容器的container id注册过去的，譬如container id为abcde，那么当访问该微服务时，eureka以http://abcde/xxx，去访问的，当然是访问不到该服务。配置上面的选项后，就会以内网ip加端口去访问就能访问到了。

那么为什么在本地环境是可以的呢？因为本地环境是localhost注册过去的，各个服务都能解析localhost，而docker不行，每一个docker都是独立的，把docker的container id注册过去，别的微服务是不认识的。