Eureka注册的服务，消费端无法访问

爱被打了一巴掌 2022-05-22 10:55 272阅读 0赞

项目需要改造为微服务，选择Spring Cloud，先根据文末的参考资料（方志朋的博客），跑通很多示例程序。其中前两节就是服务注册与发现，服务消费者。代码写完，并启动后，可以通过访问 [http://localhost:8764/hi?name=forezp ，][http_localhost_8764_hi_name_forezp]达到需要的结果。

项目Spring Cloud改造主要过程如下：

*  创建微服务order-relation,

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>com.fhbean.restservice</groupId>
        <artifactId>order-relation</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
    
        <name>order-relation</name>
        <description>Order RelationShip synchronized</description>
    
        <parent>
    	<groupId>org.springframework.boot</groupId>
    	<artifactId>spring-boot-starter-parent</artifactId>
    	<version>2.0.0.RELEASE</version>
    	<relativePath/> 
        </parent>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>
                    spring-cloud-starter-netflix-eureka-client
                </artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
            
        </dependencies>
    
        <build>
            <plugins>
                
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-resources-plugin</artifactId>
                    <configuration>
                        <encoding>UTF-8</encoding>
                    </configuration>
                </plugin>
                
                
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <configuration>
                        <source>1.7</source>
                        <target>1.7</target>
                        <encoding>UTF-8</encoding>
                    </configuration>
                </plugin>
                
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>Finchley.M9</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
        <repositories>
            <repository>
                <id>spring-milestones</id>
                <name>Spring Milestones</name>
                <url>https://repo.spring.io/milestone</url>
                <snapshots>
                    <enabled>false</enabled>
                </snapshots>
            </repository>
        </repositories>
    </project>

OrderRelationApplication.java

package com.fhbean.restservice.orderrelation;
    
    import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
    import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
    import org.springframework.context.annotation.ComponentScan;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.context.annotation.PropertySource;
    
    @Configuration
    @PropertySource(value = {"classpath:config.properties","classpath:log4j.properties","classpath:upload.properties"}, 
    ignoreResourceNotFound = true)
    @ComponentScan(basePackages = "com.fhbean.restservice.orderrelation.service,com.fhbean.restservice")
    @MapperScan("com.chinaunicom.wsp.restservice.orderrelation.dao")
    @EnableEurekaClient
    @SpringBootApplication
    public class OrderRelationApplication extends SpringBootServletInitializer {
    
    	public static void main(String[] args) {
    		SpringApplication.run(OrderRelationApplication.class, args);		
    	}
    	
    }

创建controller, OrderRelationController.java

package com.fhbean.restservice.orderrelation.controller;
    
    import javax.servlet.http.HttpServletRequest;
    
    import org.apache.log4j.Logger;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    import net.sf.json.JSONObject;
    
    /**
     */
    @Controller
    @RequestMapping("/mblOrderRelation")
    public class OrderRelationController  extends HandlerInterceptorAdapter {
    
    	private static final Logger LOGGER = Logger
    			.getLogger(OrderRelationController.class);
    	/**
    	 * 获取订购产品时间
    	 * example 
    	 * http://localhost:8080/mblOrderRelation/getOrderTime?userCode=80780b615c7e4b00683a9fc36428c00a
    	 * 
    	 * @author: wender
    	 * @date: 2017年8月2日 下午3:00:12
    	 * @param userCode
    	 * @return
    	 */
    	 @RequestMapping(value = "/getOrderTime", method = { RequestMethod.GET})
    	 @ResponseBody
    	 public Object getOrderTime(String userCode){
    		 
    		 return "hello, " + userCode;
    	
    	 }
    
    }

application.yml

eureka:
      client:
        service-url:
          defaultZone: http://localhost:8761/eureka/
          
    server: 
      port: 8762
      
    spring:
      application:
        name: order-relation
        
    logging: 
      level: 
        com.fhbean: DEBUG

*  创建eureka项目，order-relation-eureka

pom.xml

OrderRelationEurekaApplication.java

package com.fhbean.restservice.orderrelation;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
    
    @EnableEurekaServer
    @SpringBootApplication
    public class OrderRelationEurekaApplication {
    
    	public static void main(String[] args) {
    		SpringApplication.run(OrderRelationEurekaApplication.class, args);
    	}
    }

application.yml

server:
      port: 8761
      
    eureka:
      instance:
        hostname: localhost
      client:
        register-with-eureka: false
        fetch-registry: false
        service-url:
          defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

*  创建消费者项目，order-relation-ribbon

pom.xml

OrderRelationRibbonApplication.java

package com.fhbean.restservice.orderrelation;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    import org.springframework.cloud.client.loadbalancer.LoadBalanced;
    import org.springframework.context.annotation.Bean;
    import org.springframework.web.client.RestTemplate;
    
    @SpringBootApplication
    @EnableDiscoveryClient
    public class OrderRelationRibbonApplication {
    	
    	@Bean
    	@LoadBalanced
    	RestTemplate restTemplate() {
    		return new RestTemplate();
    	}
    
    	public static void main(String[] args) {
    		SpringApplication.run(OrderRelationRibbonApplication.class, args);
    	}
    }

OrderRelationController.java

package com.fhbean.restservice.orderrelation.controller;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.RestController;
    
    import com.fhbean.restservice.orderrelation.service.OrderRelationService;
    
    @RestController
    public class OrderRelationController {
    
    	@Autowired
    	OrderRelationService orderRelationService;
    	
    	/**
    	 * http://localhost:8764/getOrderTime?userCode=80780b615c7e4b00683a9fc36428c00a
    	 * @param userCode
    	 * @return
    	 */
    	@RequestMapping(value="/getOrderTime", method = RequestMethod.GET)
    	public String getOrderTime(@RequestParam String userCode) {
    		return orderRelationService.getOrderTime(userCode);
    	}
    
    	@RequestMapping(value = "/hi", method = RequestMethod.GET)
    	public String hi(@RequestParam String name) {
    		return orderRelationService.hiService(name);
    	}
    	
    }

OrderRelationService.java

package com.fhbean.restservice.orderrelation.service;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    import org.springframework.web.client.RestTemplate;
    
    @Service
    public class OrderRelationService {
    
    	@Autowired
    	RestTemplate restTemplate;
    	
    	/**
    	 * name 80780b615c7e4b00683a9fc36428c00a
    	 * @param userCode
    	 * @return
    	 */
    	public String getOrderTime(String userCode) {
    		return restTemplate.getForObject("http://ORDER-RELATION/mblOrderRelation/getOrderTime?userCode="+userCode, String.class);
    	}
    	
    	public String hiService(String name) {
    		return restTemplate.getForObject("http://ORDER-RELATION/hi?name=" + name, String.class);
    	}
    	
    }

application.yml

eureka:
      client:
        service-url:
          defaultZone: http://localhost:8761/eureka/
          
    server:
      port: 8764
      
    spring:
      application:
        name: order-relation-ribbon

*  验证

以SpringBoot方式依次运行这三个项目order-relation-eureka、order-relation、order-relation-ribbon

访问http://localhost:8761/

可以看到注册成功的两个微服务**ORDER-RELATION**, **ORDER-RELATION-RIBBON**

但是访问 http://localhost:8764/getOrderTime?userCode=80780b615c7e4b00683a9fc36428c00a 时，报异常，无法的到已经注册的服务

2018-06-22 14:40:54.866 ERROR 17080 --- [nio-8764-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://ORDER-RELATION/mblOrderRelation/getOrderTime": Connection timed out: connect; nested exception is java.net.ConnectException: Connection timed out: connect] with root cause
    
    java.net.ConnectException: Connection timed out: connect
    	at java.net.DualStackPlainSocketImpl.connect0(Native Method) ~[na:1.8.0_121]
    	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79) ~[na:1.8.0_121]
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_121]
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_121]
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_121]
    	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[na:1.8.0_121]
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_121]
    	at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_121]
    	at java.net.Socket.connect(Socket.java:538) ~[na:1.8.0_121]
    	at sun.net.NetworkClient.doConnect(NetworkClient.java:180) ~[na:1.8.0_121]
    	at sun.net.www.http.HttpClient.openServer(HttpClient.java:432) ~[na:1.8.0_121]
    	at sun.net.www.http.HttpClient.openServer(HttpClient.java:527) ~[na:1.8.0_121]
    	at sun.net.www.http.HttpClient.<init>(HttpClient.java:211) ~[na:1.8.0_121]
    	at sun.net.www.http.HttpClient.New(HttpClient.java:308) ~[na:1.8.0_121]
    	at sun.net.www.http.HttpClient.New(HttpClient.java:326) ~[na:1.8.0_121]
    	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202) ~[na:1.8.0_121]
    	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138) ~[na:1.8.0_121]
    	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032) ~[na:1.8.0_121]
    	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966) ~[na:1.8.0_121]
    	at org.springframework.http.client.SimpleBufferingClientHttpRequest.executeInternal(SimpleBufferingClientHttpRequest.java:76) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:53) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:108) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.cloud.client.loadbalancer.LoadBalancerRequestFactory.lambda$createRequest$0(LoadBalancerRequestFactory.java:59) ~[spring-cloud-commons-2.0.0.RELEASE.jar:2.0.0.RELEASE]
    	at org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.execute(RibbonLoadBalancerClient.java:112) ~[spring-cloud-netflix-ribbon-2.0.0.RELEASE.jar:2.0.0.RELEASE]
    	at org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.execute(RibbonLoadBalancerClient.java:94) ~[spring-cloud-netflix-ribbon-2.0.0.RELEASE.jar:2.0.0.RELEASE]
    	at org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor.intercept(LoadBalancerInterceptor.java:55) ~[spring-cloud-commons-2.0.0.RELEASE.jar:2.0.0.RELEASE]
    	at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:92) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.http.client.InterceptingClientHttpRequest.executeInternal(InterceptingClientHttpRequest.java:76) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:53) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:723) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:680) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.web.client.RestTemplate.getForObject(RestTemplate.java:332) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at com.fhbean.restservice.orderrelation.service.OrderRelationService.getOrderTime(OrderRelationService.java:22) ~[classes/:na]
    	at com.fhbean.restservice.orderrelation.controller.OrderRelationController.getOrderTime(OrderRelationController.java:23) ~[classes/:na]
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
    	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
    	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
    	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[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.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:1142) [na:1.8.0_121]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
    	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar:8.5.31]
    	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]

*  解决思路如下

改造 order-relation项目的OrderRelationApplication.java，使之可以跑通测试方法hi

OrderRelationApplication.java

package com.fhbean.restservice.orderrelation;
    
    import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
    import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
    import org.springframework.context.annotation.ComponentScan;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.context.annotation.PropertySource;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.RestController;
    
    
    @Configuration
    @PropertySource(value = {"classpath:config.properties","classpath:log4j.properties","classpath:upload.properties"}, 
    ignoreResourceNotFound = true)
    @ComponentScan(basePackages = "com.fhbean.restservice.orderrelation.service,com.fhbean.restservice")
    @MapperScan("com.chinaunicom.wsp.restservice.orderrelation.dao")
    @EnableEurekaClient
    @SpringBootApplication
    @RestController
    public class OrderRelationApplication extends SpringBootServletInitializer {
    
    	public static void main(String[] args) {
    		SpringApplication.run(OrderRelationApplication.class, args);		
    	}
    	
        @RequestMapping(value = "/hi", method = RequestMethod.GET)
        public String home(@RequestParam String name) {
            return "hi " + name + ", I am from OrderRelationApplication";
        }
    }

order-relation-ribbon项目中，OrderRelationController.java，OrderRelationService.java已经在之前的代码中列出了hi方法。

重新启动项目，并访问http://localhost:8764/hi?name=80780b615c7e4b00683a9fc36428c00a，可以打出需要的结果。同时，http://localhost:8764/getOrderTime?userCode=80780b615c7e4b00683a9fc36428c00a，也正常了。说明结构没有问题，也没有少导哪个springboot包。

继续在order-relation项目查找问题的根源

把OrderRelationApplication.java类的hi方法注释，并重新启动order-relation项目。再次访问http://localhost:8764/getOrderTime?userCode=80780b615c7e4b00683a9fc36428c00a，正常。

经查是因为在OrderRelationApplication.java中增加了@RestController注解。

还有一个解决办法，就是在OrderRelationApplication.java中，扫描包中增加controller的包路径，即@ComponentScan(basePackages = "com.fhbean.restservice.orderrelation.controller,com.fhbean.restservice.orderrelation.service,com.fhbean.restservice")

参考

*  [史上最简单的 SpringCloud 教程 | 第一篇: 服务的注册与发现（Eureka）][SpringCloud _ _ _ _Eureka]
 *  [史上最简单的SpringCloud教程 | 第二篇: 服务消费者（rest+ribbon）][SpringCloud_ _ _ _rest_ribbon]

[http_localhost_8764_hi_name_forezp]: http://localhost:8764/hi?name=forezp
[SpringCloud _ _ _ _Eureka]: http://blog.csdn.net/forezp/article/details/69696915
[SpringCloud_ _ _ _rest_ribbon]: http://blog.csdn.net/forezp/article/details/69788938