springcloud / spring-cloud-code Goto Github PK

  gateway:
    discovery:
      locator:
      #开启服务发现路由匹配规则
        enabled: true
        filters:
        - name: Hystrix
          args:
            name: default
            fallbackUri: forward:/fallback

这么配置filters报错,为什么discovery 配置filters不生效.

1.Token透传拦截器
postMan截图：

在项目中Header会被转成小写

2.Feign Response No converter found
在CH4-2中 我在服务提供方添加了响应Feign Response的方法

并且在项目中添加了一个消息转换器

但是调用的时候报错
Failed to write HTTP message: org.springframework.http.converter.HttpMessageNotWritableException: No converter found for return value of type: class feign.Response

不知道要添加什么类型的消息转换器

欢迎各位读者按照下面格式反馈读者书评

• 本书优点:xxxxx
• 本书不足:xxxx
• 第二版展望:xxxxx

eureka-server-peer1.yml 中配置有问题
启动一个eureka server配置有问题（禁止自注册）
改为：
register-with-eureka: false
fetch-registry: false

第11章里，“使用网络访问工具访问地址: http://localhost:9090/config-info/dev/master。”中的地址应该为: http://localhost:9090/config-info-dev/master

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-1.9.2.jar:1.9.2]
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.post(WebResource.java:570) ~[jersey-client-1.19.1.jar:1.19.1]
at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.register(AbstractJerseyEurekaHttpClient.java:56) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.MetricsCollectingEurekaHttpClient.execute(MetricsCollectingEurekaHttpClient.java:73) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.executeOnNewServer(RedirectingEurekaHttpClient.java:118) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.execute(RedirectingEurekaHttpClient.java:79) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:120) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.DiscoveryClient.register(DiscoveryClient.java:829) [eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.InstanceInfoReplicator.run(InstanceInfoReplicator.java:121) [eureka-client-1.9.2.jar:1.9.2]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_181]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_181]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_181]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [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]
Caused by: java.net.ConnectException: Connection refused: connect
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 org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:121) ~[httpclient-4.5.5.jar:4.5.5]
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180) ~[httpclient-4.5.5.jar:4.5.5]
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144) ~[httpclient-4.5.5.jar:4.5.5]
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:134) ~[httpclient-4.5.5.jar:4.5.5]
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:610) ~[httpclient-4.5.5.jar:4.5.5]
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:445) ~[httpclient-4.5.5.jar:4.5.5]
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.5.jar:4.5.5]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:118) ~[httpclient-4.5.5.jar:4.5.5]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.5.jar:4.5.5]
at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:173) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
... 29 common frames omitted

2018-10-25 10:20:01.151 WARN 14860 --- [nfoReplicator-0] c.n.d.s.t.d.RetryableEurekaHttpClient : Request execution failed with message: java.net.ConnectException: Connection refused: connect
2018-10-25 10:20:01.152 WARN 14860 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_EUREKA-SERVER/CTOPC10081636.boe.com.cn:eureka-server - registration failed Cannot execute request on any known
server

com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server
at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:112) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.DiscoveryClient.register(DiscoveryClient.java:829) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.InstanceInfoReplicator.run(InstanceInfoReplicator.java:121) [eureka-client-1.9.2.jar:1.9.2]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_181]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_181]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_181]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [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]

第3章 Spring Cloud Eureka 下篇 第37页 表3-6 : 行2和行4重复

咨询consul配置的一个问题，配置项的路径必须是config/consul-config/xxx
我写代码发现必须是在这个路径下的配置项目才能找到配置项
不然就报错
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'kkk' in value "${kkk}"

@bean("custom_route")
public RouteLocator customerRouteLocator(RouteLocatorBuilder builder) {
return builder.routes()
.route(r -> r.path("/test/customFilter")
.filters(f -> f.filter(new CustomGatewayFilter()).stripPrefix(1))
.uri("http://localhost:7001/test")
.order(0)
.id("custom_filter")
)
.build();
}
我在看书过程中发现：/test/customFilter 并不能路由到http://localhost:7001/test路径下，会报404错误，通过日志跟踪发现，gateway找的是http://localhost:7001/test/customFilter，与书中案例出现冲突！ 望解惑！！谢谢！

我曾经在项目中使用书中说的方法去配置全局负载均衡策略的时候发现这种配置方式无法得到预期的效果。

自定义的负载均衡服务继承AvailabilityFilteringRule去重写了选择服务器的方法

@Bean
public IRule rule() {
    return new RibbonRule();
}

public class RibbonRule extends AvailabilityFilteringRule {
@Override
public Server choose(Object key) {
    ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.currentRequestAttributes();
    HttpServletRequest request = attributes.getRequest();
    // Get the actual ip address
    key = RequestUtils.getIpAddress(request);
    ILoadBalancer lb = getLoadBalancer();
    Server returnServer = null;
    List<Server> server = getPredicate().getEligibleServers(lb.getAllServers(), String.valueOf(key));
    for (Server s : server) {
        if (StringUtils.contains(s.getHost(), String.valueOf(key))) {
            returnServer = s;
        }
    }
    if (returnServer == null) {
        returnServer = super.choose(key);
    }
    return returnServer;    }}

这种配置方式在只请求第一次的场景下不会有任何问题，但是在第二次请求的时候ILoadBalancer没有办法获取到正确的服务器导致请求失败

我在init方法中同时去请求了a-center和b-center两个微服务，第一次没问题，第二次请求a-center的feign获取到的是b-center的IP地址

public void init() {
   //a-center
   a.getA();
   //b-center
    b.getB();
}

在Ribbon的文档给的案例上配置全局负载均衡是通过@RibbonClients这个注解的defaultConfiguration属性来实现的

@RibbonClients(defaultConfiguration = RibbonRule.class)
public class RibbonClientConfiguration {

}

所以~~~~我想知道是哪里的问题

前几章都挺好的，到了第六章Hystrix，例子跑不起来，报：找不着方法 org.HdrHistogram.Histogram.(I)V，而且写的一点都不细致，这本书最大的败笔就是这章！

Spring Cloud 容器化部署的时候，服务注册失败，你们是不是更改了docker的网络设置？

第三章中启动eurkeaserver的时候，配置中registerWithEureka: true
为什么会配置true，这样的话他就不是server了，这会导致项目启动报错

工程CH5-2
1.感觉AvoidScan是多余的
如果想为Ribbon单个客户端进行配置 只需如下配置即可
1.@RibbonClient(name = "client-a", configuration = TestConfiguration.class)

2.编写TestConfiguration类代码如下

因为你添加了@configuration 然后又用AvoidScan将类排除在Spring容器扫描 个人感觉是多余的 并且Ribbon的配置貌似是区分大小写的 CLIENT-A的调用是不会引用到client-a的配置的

2.在CH5-2中 配置超时和重试都没有生效
服务调用方

关于超时:我在服务提供方打了断点让程序卡住 但是客户端却没有触发超时机制
关于重试:我先启动两个节点 后下线一个节点 但是客户端没有进行失败重试 即使在我添加了spring-retry依赖后，依然没触发重试机制 不知道是不是因为直接通过RestTemplate调用不会触发Ribbon的超时和重试机制。以上是个人见解 如有误解的地方 请多多包涵哈

按照书中代码来做,并不会实现文件上传，会报500异常。

后台错误日志如下:

配置文件应按照图中的格式进行编写 感谢作者耐心解答

我记得config server端还得配置config.server.xxx 这类配置的吧？

cloud:
consul:
host: 127.0.0.1

这个host是随便写集群中的一个实例吗

this.routeDefinitionWriter.delete(Mono.just(id));
这一步跟断点的时候走到的InMemoryRouteDefinitionRepository类里面的删除方法,
但是代码似乎不执行一样,
方法走完了之后请求actuator/gateway/routes发现路由规则仍然存在

这个zuul和oauth2整合权限登陆后报了这个错误，我用的cloud版本是Greenwich.M3，这个怎么处理，有大佬遇到过吗，谢谢

com.netflix.zuul.exception.ZuulException: Filter threw Exception
at com.netflix.zuul.FilterProcessor.processZuulFilter(FilterProcessor.java:227) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.FilterProcessor.runFilters(FilterProcessor.java:157) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.FilterProcessor.error(FilterProcessor.java:105) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.ZuulRunner.error(ZuulRunner.java:112) [zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.http.ZuulServlet.error(ZuulServlet.java:145) [zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.http.ZuulServlet.service(ZuulServlet.java:83) [zuul-core-1.3.1.jar:1.3.1]
at org.springframework.web.servlet.mvc.ServletWrappingController.handleRequestInternal(ServletWrappingController.java:165) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.cloud.netflix.zuul.web.ZuulController.handleRequest(ZuulController.java:44) [spring-cloud-netflix-zuul-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:158) [spring-boot-actuator-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:126) [spring-boot-actuator-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:111) [spring-boot-actuator-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) [spring-boot-actuator-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) [spring-security-web-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.security.oauth2.client.filter.OAuth2ClientContextFilter.doFilter(OAuth2ClientContextFilter.java:60) [spring-security-oauth2-2.2.1.RELEASE.jar:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.31.jar:8.5.31]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_131]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_131]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar:8.5.31]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]
Caused by: java.lang.ClassCastException: org.apache.http.conn.HttpHostConnectException cannot be cast to com.netflix.zuul.exception.ZuulException
at org.springframework.cloud.netflix.zuul.filters.post.SendErrorFilter.findZuulException(SendErrorFilter.java:104) ~[spring-cloud-netflix-zuul-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.cloud.netflix.zuul.filters.post.SendErrorFilter.run(SendErrorFilter.java:73) ~[spring-cloud-netflix-zuul-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at com.netflix.zuul.ZuulFilter.runFilter(ZuulFilter.java:117) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.FilterProcessor.processZuulFilter(FilterProcessor.java:193) ~[zuul-core-1.3.1.jar:1.3.1]
... 97 common frames omitted

Eureka实战-3【支持Remote Region】，实战
http://www.dengb.com/Javabc/1372927.html

这 Remote Region不起作用了，我这，一直报错：
zuul-gateway zone1

2019-10-21 11:24:13.478 WARN 1108 --- [o-10001-exec-10] o.s.c.n.z.filters.post.SendErrorFilter : Error during filtering

com.netflix.zuul.exception.ZuulException: Forwarding error
at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.handleException(RibbonRoutingFilter.java:189) ~[spring-cloud-netflix-zuul-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.forward(RibbonRoutingFilter.java:164) ~[spring-cloud-netflix-zuul-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.run(RibbonRoutingFilter.java:112) ~[spring-cloud-netflix-zuul-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at com.netflix.zuul.ZuulFilter.runFilter(ZuulFilter.java:117) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.FilterProcessor.processZuulFilter(FilterProcessor.java:193) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.FilterProcessor.runFilters(FilterProcessor.java:157) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.FilterProcessor.route(FilterProcessor.java:118) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.ZuulRunner.route(ZuulRunner.java:96) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.http.ZuulServlet.route(ZuulServlet.java:116) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.http.ZuulServlet.service(ZuulServlet.java:81) ~[zuul-core-1.3.1.jar:1.3.1]
at org.springframework.web.servlet.mvc.ServletWrappingController.handleRequestInternal(ServletWrappingController.java:165) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.cloud.netflix.zuul.web.ZuulController.handleRequest(ZuulController.java:44) [spring-cloud-netflix-zuul-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) [spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:158) [spring-boot-actuator-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:126) [spring-boot-actuator-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:111) [spring-boot-actuator-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) [spring-boot-actuator-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) [tomcat-embed-core-8.5.31.jar:8.5.31]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.31.jar:8.5.31]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_151]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_151]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar:8.5.31]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_151]
Caused by: com.netflix.hystrix.exception.HystrixRuntimeException: demo-client timed-out and no fallback available.
at com.netflix.hystrix.AbstractCommand$22.call(AbstractCommand.java:819) ~[hystrix-core-1.5.12.jar:1.5.12]
at com.netflix.hystrix.AbstractCommand$22.call(AbstractCommand.java:804) ~[hystrix-core-1.5.12.jar:1.5.12]
at rx.internal.operators.OperatorOnErrorResumeNextViaFunction$4.onError(OperatorOnErrorResumeNextViaFunction.java:140) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onError(OnSubscribeDoOnEach.java:87) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onError(OnSubscribeDoOnEach.java:87) ~[rxjava-1.3.8.jar:1.3.8]
at com.netflix.hystrix.AbstractCommand$DeprecatedOnFallbackHookApplication$1.onError(AbstractCommand.java:1472) ~[hystrix-core-1.5.12.jar:1.5.12]
at com.netflix.hystrix.AbstractCommand$FallbackHookApplication$1.onError(AbstractCommand.java:1397) ~[hystrix-core-1.5.12.jar:1.5.12]
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onError(OnSubscribeDoOnEach.java:87) ~[rxjava-1.3.8.jar:1.3.8]
at rx.observers.Subscribers$5.onError(Subscribers.java:230) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeThrow.call(OnSubscribeThrow.java:44) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeThrow.call(OnSubscribeThrow.java:28) ~[rxjava-1.3.8.jar:1.3.8]
at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[rxjava-1.3.8.jar:1.3.8]
at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.3.8.jar:1.3.8]
at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.3.8.jar:1.3.8]
at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.3.8.jar:1.3.8]
at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.3.8.jar:1.3.8]
at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OperatorOnErrorResumeNextViaFunction$4.onError(OperatorOnErrorResumeNextViaFunction.java:142) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onError(OnSubscribeDoOnEach.java:87) ~[rxjava-1.3.8.jar:1.3.8]
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onError(OnSubscribeDoOnEach.java:87) ~[rxjava-1.3.8.jar:1.3.8]
at com.netflix.hystrix.AbstractCommand$HystrixObservableTimeoutOperator$1$1.run(AbstractCommand.java:1154) ~[hystrix-core-1.5.12.jar:1.5.12]
at com.netflix.hystrix.strategy.concurrency.HystrixContextRunnable$1.call(HystrixContextRunnable.java:45) ~[hystrix-core-1.5.12.jar:1.5.12]
at com.netflix.hystrix.strategy.concurrency.HystrixContextRunnable$1.call(HystrixContextRunnable.java:41) ~[hystrix-core-1.5.12.jar:1.5.12]
at com.netflix.hystrix.strategy.concurrency.HystrixContextRunnable.run(HystrixContextRunnable.java:61) ~[hystrix-core-1.5.12.jar:1.5.12]
at com.netflix.hystrix.AbstractCommand$HystrixObservableTimeoutOperator$1.tick(AbstractCommand.java:1159) ~[hystrix-core-1.5.12.jar:1.5.12]
at com.netflix.hystrix.util.HystrixTimer$1.run(HystrixTimer.java:99) ~[hystrix-core-1.5.12.jar:1.5.12]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_151]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) ~[na:1.8.0_151]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) ~[na:1.8.0_151]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) ~[na:1.8.0_151]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_151]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_151]
... 1 common frames omitted
Caused by: java.util.concurrent.TimeoutException: null
at com.netflix.hystrix.AbstractCommand.handleTimeoutViaFallback(AbstractCommand.java:997) ~[hystrix-core-1.5.12.jar:1.5.12]
at com.netflix.hystrix.AbstractCommand.access$500(AbstractCommand.java:60) ~[hystrix-core-1.5.12.jar:1.5.12]
at com.netflix.hystrix.AbstractCommand$12.call(AbstractCommand.java:610) ~[hystrix-core-1.5.12.jar:1.5.12]
at com.netflix.hystrix.AbstractCommand$12.call(AbstractCommand.java:601) ~[hystrix-core-1.5.12.jar:1.5.12]
at rx.internal.operators.OperatorOnErrorResumeNextViaFunction$4.onError(OperatorOnErrorResumeNextViaFunction.java:140) ~[rxjava-1.3.8.jar:1.3.8]
... 15 common frames omitted

按照源码3.5.5整合https时发现，启动eureka-server 在启动一个eureka-client 发现eureka-server有报错 eureka-server自动调用https://localhost:8761/peerreplication/batch/ (个人猜测是在高可用的时候同步注册信息的接口) 报错 所以eureka-server是不是也要将内置的jersey支持https

编写Global Filter作用于所有的路由，添加如下代码处理

exchange.getRequest().mutate()
                .headers(httpHeaders -> httpHeaders.remove("Authorization"))
                .build() 

apollo配置zuul 配置下发问题更正

1、对于12章中的zuul 网关配置更新下发，图12-48 多了一个等号， 正确的配图如下：

2、兼容apollo发布版, 案例配置文件中添加一个meta 的地址， 具体如下所示：

apollo:
  bootstrap:
    enabled: true
    namespaces: application
  meta: http://localhost:8080

推荐看案例源代码配置项；

书中的案例 通过定义一个filter 将X-Forwarded-Prefix添加到header中 但是实际发现greenwich版本中 这个header被gateway自动添加进去了 这种情况下发现swagger取api-docs的时候baseUrl有错误 这个是否是书中老版本的原因

zuul代码中ch8-7的zuul-server的bootstrap.yml配置有误

我并没有看过书籍，我在这里说出我的疑问：

在FeignAutoConfiguration的源代码中，明确指出

	// the following configuration is for alternate feign clients if
	// ribbon is not on the class path.
	// see corresponding configurations in FeignRibbonClientAutoConfiguration
	// for load balanced ribbon clients.
	@Configuration
	@ConditionalOnClass(ApacheHttpClient.class)
	@ConditionalOnMissingClass("com.netflix.loadbalancer.ILoadBalancer")
	@ConditionalOnProperty(value = "feign.httpclient.enabled", matchIfMissing = true)
	protected static class HttpClientFeignConfiguration {

		@Autowired(required = false)
		private HttpClient httpClient;

		@Bean
		@ConditionalOnMissingBean(Client.class)
		public Client feignClient() {
			if (this.httpClient != null) {
				return new ApacheHttpClient(this.httpClient);
			}
			return new ApacheHttpClient();
		}
	}	

    @Configuration
	@ConditionalOnClass(OkHttpClient.class)
	@ConditionalOnMissingClass("com.netflix.loadbalancer.ILoadBalancer")
	@ConditionalOnProperty(value = "feign.okhttp.enabled", matchIfMissing = true)
	protected static class OkHttpFeignConfiguration {

		@Autowired(required = false)
		private okhttp3.OkHttpClient okHttpClient;

		@Bean
		@ConditionalOnMissingBean(Client.class)
		public Client feignClient() {
			if (this.okHttpClient != null) {
				return new OkHttpClient(this.okHttpClient);
			}
			return new OkHttpClient();
		}
	}

1. 首先，cloud代码中先是使用的是httpClient,但是在下面的代码有又有只要存在okhttp包，启用okhttp,仔细看咱们的源码，可以看出，咱们引用了okhttp的包，所以是生效的，只要feign.okhttp.enabled=true那么，okhttp就是生效的，咱们的配置文件就没有作用了。
2. 我们考虑首次为何会失败的问题，查阅代码能找到，feign默认的超时参数是这样的

private final int connectTimeoutMillis;
private final int readTimeoutMillis;

public Options(int connectTimeoutMillis, int readTimeoutMillis) {
  this.connectTimeoutMillis = connectTimeoutMillis;
  this.readTimeoutMillis = readTimeoutMillis;
}

public Options() {
  this(10 * 1000, 60 * 1000);
}

啥意思呢

1. connectTimeoutMillis连接超时的时间为：10*1000 就是10秒
2. readTimeoutMillis 读取超时时间为：60*1000 也就是一分钟

那么@SoftwareKing 同学提交的代码是怎么样的呢：

 @Bean
 public okhttp3.OkHttpClient okHttpClient(){
     return new okhttp3.OkHttpClient.Builder()
              //设置连接超时
             .connectTimeout(60, TimeUnit.SECONDS)
             //设置读超时
             .readTimeout(60, TimeUnit.SECONDS)
             //设置写超时
             .writeTimeout(60,TimeUnit.SECONDS)
             //是否自动重连
             .retryOnConnectionFailure(true)
             .connectionPool(new ConnectionPool())
             //构建OkHttpClient对象
             .build();
 }

设置了，一分钟的超时时间，所以就解决了首次超时的问题。

为何10秒钟连接不到服务或者响应不会来呢，想必书籍里面应该已经提及到了，我就不就阐述了

启动报错

org.springframework.context.ApplicationContextException: Unable to start reactive web server; nested exception is java.lang.IllegalStateException: java.lang.IllegalStateException: org.springframework.boot.web.server.WebServerException: Could not load key store 'classpath:samples.jks'
	at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.onRefresh(ReactiveWebServerApplicationContext.java:81) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:544) ~[spring-context-5.1.16.RELEASE.jar:5.1.16.RELEASE]
	at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:66) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at com.upcwangying.cloud.samples.gateway.SamplesGatewayApplication.main(SamplesGatewayApplication.java:44) [classes/:na]
Caused by: java.lang.IllegalStateException: java.lang.IllegalStateException: org.springframework.boot.web.server.WebServerException: Could not load key store 'classpath:samples.jks'
	at org.springframework.boot.web.embedded.netty.SslServerCustomizer.apply(SslServerCustomizer.java:85) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.embedded.netty.NettyReactiveWebServerFactory.createHttpServer(NettyReactiveWebServerFactory.java:137) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.embedded.netty.NettyReactiveWebServerFactory.getWebServer(NettyReactiveWebServerFactory.java:63) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext$ServerManager.<init>(ReactiveWebServerApplicationContext.java:196) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext$ServerManager.get(ReactiveWebServerApplicationContext.java:213) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.createWebServer(ReactiveWebServerApplicationContext.java:88) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.onRefresh(ReactiveWebServerApplicationContext.java:78) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	... 8 common frames omitted
Caused by: java.lang.IllegalStateException: org.springframework.boot.web.server.WebServerException: Could not load key store 'classpath:samples.jks'
	at org.springframework.boot.web.embedded.netty.SslServerCustomizer.getKeyManagerFactory(SslServerCustomizer.java:123) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.embedded.netty.SslServerCustomizer.getContextBuilder(SslServerCustomizer.java:90) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.embedded.netty.SslServerCustomizer.lambda$apply$0(SslServerCustomizer.java:78) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at reactor.netty.http.server.HttpServerSecure.<init>(HttpServerSecure.java:37) ~[reactor-netty-0.8.19.RELEASE.jar:0.8.19.RELEASE]
	at reactor.netty.http.server.HttpServer.secure(HttpServer.java:447) ~[reactor-netty-0.8.19.RELEASE.jar:0.8.19.RELEASE]
	at org.springframework.boot.web.embedded.netty.SslServerCustomizer.apply(SslServerCustomizer.java:77) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	... 14 common frames omitted
Caused by: org.springframework.boot.web.server.WebServerException: Could not load key store 'classpath:samples.jks'
	at org.springframework.boot.web.embedded.netty.SslServerCustomizer.loadStore(SslServerCustomizer.java:177) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.embedded.netty.SslServerCustomizer.loadKeyStore(SslServerCustomizer.java:158) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.embedded.netty.SslServerCustomizer.getKeyStore(SslServerCustomizer.java:131) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	at org.springframework.boot.web.embedded.netty.SslServerCustomizer.getKeyManagerFactory(SslServerCustomizer.java:109) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	... 19 common frames omitted
Caused by: java.io.FileNotFoundException: class path resource [samples.jks] cannot be resolved to URL because it does not exist
	at org.springframework.util.ResourceUtils.getURL(ResourceUtils.java:137) ~[spring-core-5.1.16.RELEASE.jar:5.1.16.RELEASE]
	at org.springframework.boot.web.embedded.netty.SslServerCustomizer.loadStore(SslServerCustomizer.java:172) ~[spring-boot-2.1.15.RELEASE.jar:2.1.15.RELEASE]
	... 22 common frames omitted

第四章 Spring Cloud Feign
4.1.3 Feign的工作原理 小节（第78页）。两处地方，应该是@FeignClient 而不是 @FeignClients