springcloud微服务 - 集成Zuul网关 无法通过网关

本文记录了在SpringCloud微服务中集成Zuul网关时遇到的问题,描述了配置过程及错误现象。尽管服务已成功注册到Eureka注册中心,但尝试通过Zuul网关访问服务时,却出现访问失败的错误。作者计划在后续内容中分享解决办法。

springcloud微服务 - 集成Zuul网关 无法通过网关

今天上午配置了下zuul网关,结果无法通过网关。具体如下:
下面先贴下我做的动作。
1、application.yml文件:

server:
  port: 9004

eureka:
  instance:
    hostname: 127.0.0.1
  client:
    service-url:
      defaultZone: http://${eureka.instance.hostname}:9000/eureka
    register-with-eureka: true
    fetch-registry: true

spring:
  #profiles:
  #active: dev
  application:
    name: zuul

#路由规则定义。这里定义两种路由规则route1和route2#,代表访问网关/test01/**或/test02/**时。
#路由到服务名为 eurekaclient1或 eurekaclient2中的服务集群去。
zuul:
  routes:
    route1:
      path: /test01/**
      serviceId: eurekaclient1
    route2:
      path: /test02/**
      serviceId: eurekaclient2

2、pom文件:

<!-- 添加Zuul网关-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
            <version>2.2.8.RELEASE</version>
        </dependency>

3、启动类添加注解:

@SpringBootApplication
@EnableEurekaClient
@EnableZuulProxy
public class ZuulApplication {

    public static void main(String[] args) {
        SpringApplication.run(ZuulApplication.class, args);
    }

}

搞完这几步,启动全部服务。首先访问注册中心,已确认全部服务已经注册到注册中心,eurekaclient1、eurekaclient2中都有个返回值为该服务的服务名称的接口“/server”。但是当通过网关“http://localhost:9004/test01/server”访问eurekaclient1和eurekaclient2,却发现一直报如下错误:

java.lang.NoSuchMethodError: org.springframework.boot.web.servlet.error.ErrorController.getErrorPath()Ljava/lang/String;
	at org.springframework.cloud.netflix.zuul.web.ZuulHandlerMapping.lookupHandler(ZuulHandlerMapping.java:87) ~[spring-cloud-netflix-zuul-2.2.8.RELEASE.jar:2.2.8.RELEASE]
	at org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.getHandlerInternal(AbstractUrlHandlerMapping.java:152) ~[spring-webmvc-5.3.7.jar:5.3.7]
	at org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:498) ~[spring-webmvc-5.3.7.jar:5.3.7]
	at org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1257) ~[spring-webmvc-5.3.7.jar:5.3.7]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039) ~[spring-webmvc-5.3.7.jar:5.3.7]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.7.jar:5.3.7]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.7.jar:5.3.7]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.7.jar:5.3.7]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) ~[tomcat-embed-core-9.0.46.jar:4.0.FR]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.7.jar:5.3.7]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.46.jar:4.0.FR]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.7.jar:5.3.7]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.7.jar:5.3.7]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:103) ~[spring-web-5.3.7.jar:5.3.7]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:103) ~[spring-web-5.3.7.jar:5.3.7]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:710) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:398) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:257) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:352) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:177) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_40]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_40]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.46.jar:9.0.46]
	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]

2021-06-04 12:29:49.144 ERROR 416 --- [nio-9003-exec-2] o.a.c.c.C.[Tomcat].[localhost]           : Exception Processing ErrorPage[errorCode=0, location=/error]

后续内容,下午会更新,休息。

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