Spring Cloud简介
Spring Cloud是一个基于Spring Boot实现的云应用开发工具，它为基于JVM的云应用开发中涉及的配置管理、服务发现、断路器、智能路由、微代理、控制总线、全局锁、决策竞选、分布式会话和集群状态管理等操作提供了一种简单的开发方式。
Spring Cloud包含了多个子项目（针对分布式系统中涉及的多个不同开源产品），比如：Spring Cloud Config、Spring Cloud Netflix、Spring Cloud CloudFoundry、Spring Cloud AWS、Spring Cloud Security、Spring Cloud Commons、Spring Cloud Zookeeper、Spring Cloud CLI等项目。
微服务架构
“微服务架构”在这几年非常的火热，以至于关于微服务架构相关的开源产品被反复的提及（比如： netflix、dubbo），Spring Cloud也因Spring社区的强大知名度和影响力也被广大架构师与开发者备受关注。
那么什么是“微服务架构”呢？简单的说，微服务架构就是将一个完整的应用从数据存储开始垂直拆分成多个不同的服务，每个服务都能独立部署、独立维护、独立扩展，服务与服务间通过诸如RESTful API的方式互相调用。
对于“微服务架构”，大家在互联网可以搜索到很多相关的介绍和研究文章来进行学习和了解。也可以阅读始祖Martin Fowler的《Microservices》（中文版翻译点击查看），本文不做更多的介绍和描述。
服务治理
在简单介绍了Spring Cloud和微服务架构之后，下面回归本文的主旨内容，如何使用Spring Cloud来实现服务治理。
由于Spring Cloud为服务治理做了一层抽象接口，所以在Spring Cloud应用中可以支持多种不同的服务治理框架，比如：Netflix Eureka、Consul、Zookeeper。在Spring Cloud服务治理抽象层的作用下，我们可以无缝地切换服务治理实现，并且不影响任何其他的服务注册、服务发现、服务调用等逻辑。
所以，下面我们通过Eureka这种种服务治理的实现来体会Spring Cloud这一层抽象所带来的好处。
下一篇介绍基于Consul的服务注册与调用。
Spring Cloud Eureka
首先，我们来尝试使用Spring Cloud Eureka来实现服务治理。
Spring Cloud Eureka是Spring Cloud Netflix项目下的服务治理模块。而Spring Cloud Netflix项目是Spring Cloud的子项目之一，主要内容是对Netflix公司一系列开源产品的包装，它为Spring Boot应用提供了自配置的Netflix OSS整合。通过一些简单的注解，开发者就可以快速的在应用中配置一下常用模块并构建庞大的分布式系统。它主要提供的模块包括：服务发现（Eureka），断路器（Hystrix），智能路由（Zuul），客户端负载均衡（Ribbon）等。
下面，就来具体看看如何使用Spring Cloud Eureka实现服务治理，这里使用eureka-server为服务注册中心工程、eureka-provider服务提供者工程、eureka-consumer服务消费者工程。
准备工作
环境：
windows
jdk 8
maven 3.0
IDEA
构建工程
首先构建父工程，引入父工程依赖：
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
父工程取名为：spring-cloud-eureka
构建子工程，分别创建工程名为：eureka-server、eureka-provider、eureka-consumer并在pom中加入以下依赖：
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
工程构建完成。
服务注册中心工程配置
首先：在eureka-server工程下resource目录下添加application.yml文件并加入以下配置：
#工程名称
spring:
application:
name: eureka-server
#选择哪一个环境的配置
#这里可以在每个环境配置redis，数据库（mysql），消息（kafka）等相关的组件的配置
profiles:
active: dev
#配置eureka注册中心
eureka:
#server:
#配置关闭自我保护模式
#enableSelfPreservation: false
#配置Eureka Server清理无效节点的时间间隔
#eviction-interval-timer-in-ms: 4000
instance:
#配置与此实例相关联的主机名，是其他实例可以用来进行请求的准确名称
hostname: eureka-server
#显示服务ip地址
preferIpAddress: true
#获取服务的ip和端口
instanceId: ${spring.cloud.client.ipAddress}:${server.port}
client:
#配置不将自己注册到eureka注册中心
register-with-eureka: false
#配置此客户端不获取eureka服务器注册表上的注册信息
fetch-registry: false
serviceUrl:
#配置默认节点有信息，这里是获取本机的ip和端口来实现，如果不配置，默认会找8761端口，这里配置的是1001端口，因此会报错
defaultZone: http://${spring.cloud.client.ipAddress}:${server.port}/eureka/
#文档块区分为三个---
---
server:
port: 1001
spring:
profiles: dev
#日志
logging:
config: classpath:log/logback.xml
path: log/eureka-server
#文档块区分为三个---
---
server:
port: 1002
spring:
profiles: test
#日志
logging:
config: classpath:log/logback.xml
path: usr/eureka-server/log/eureka-server
#文档块区分为三个---
---
server:
port: 1003
spring:
profiles: prod
#日志
logging:
config: classpath:log/logback.xml
path: usr/eureka-server/log/eureka-server
这里日志的配置不在详细说明，不知道怎么配置可以参考这篇文章：SpringBoot进阶教程 | 第二篇：日志组件logback实现日志分级打印
其次：创建核心启动类：
@EnableEurekaServer//加上此注解表示将此工程启动后为注册中心
@SpringBootApplication
public class EurekaServerApplication {
public static void main(String[] args) {
new SpringApplicationBuilder(EurekaServerApplication.class).web(true).run(args);
}
}
最后：启动项目，看到如下日志打印信息：
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.3.RELEASE)
2018-07-17 15:05:53.541 INFO 7080 --- [ main] c.z.eureka.EurekaServerApplication : The following profiles are active: dev
2018-07-17 15:05:53.588 INFO 7080 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@5b22b970: startup date [Tue Jul 17 15:05:53 GMT+08:00 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@3af0a9da
2018-07-17 15:05:55.126 INFO 7080 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=cd854175-7c7f-3c0f-8597-c3d23f037104
2018-07-17 15:05:55.147 INFO 7080 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2018-07-17 15:05:55.247 INFO 7080 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.netflix.metrics.MetricsInterceptorConfiguration$MetricsRestTemplateConfiguration' of type [org.springframework.cloud.netflix.metrics.MetricsInterceptorConfiguration$MetricsRestTemplateConfiguration$$EnhancerBySpringCGLIB$$a90c774] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-07-17 15:05:55.259 INFO 7080 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$f47e2430] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-07-17 15:05:55.658 INFO 7080 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 1001 (http)
2018-07-17 15:05:55.670 INFO 7080 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2018-07-17 15:05:55.672 INFO 7080 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.14
2018-07-17 15:05:55.946 INFO 7080 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2018-07-17 15:05:55.947 INFO 7080 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2359 ms
2018-07-17 15:05:57.669 INFO 7080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'metricsFilter' to: [/*]
2018-07-17 15:05:57.680 INFO 7080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-07-17 15:05:57.681 INFO 7080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-07-17 15:05:57.681 INFO 7080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-07-17 15:05:57.681 INFO 7080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2018-07-17 15:05:57.682 INFO 7080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'webRequestTraceFilter' to: [/*]
2018-07-17 15:05:57.683 INFO 7080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'servletContainer' to urls: [/eureka/*]
2018-07-17 15:05:57.683 INFO 7080 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'applicationContextIdFilter' to: [/*]
2018-07-17 15:05:57.683 INFO 7080 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2018-07-17 15:05:58.056 INFO 7080 --- [ost-startStop-1] c.s.j.s.i.a.WebApplicationImpl : Initiating Jersey application, version 'Jersey: 1.19.1 03/11/2016 02:08 PM'
2018-07-17 15:05:58.376 INFO 7080 --- [ost-startStop-1] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2018-07-17 15:05:58.378 INFO 7080 --- [ost-startStop-1] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2018-07-17 15:05:58.617 INFO 7080 --- [ost-startStop-1] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2018-07-17 15:05:58.618 INFO 7080 --- [ost-startStop-1] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2018-07-17 15:06:00.945 INFO 7080 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@5b22b970: startup date [Tue Jul 17 15:05:53 GMT+08:00 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@3af0a9da
2018-07-17 15:06:02.200 INFO 7080 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity
2018-07-17 15:06:02.202 INFO 7080 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-07-17 15:06:02.209 INFO 7080 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/],methods=[GET]}" onto public java.lang.String org.springframework.cloud.netflix.eureka.server.EurekaController.status(javax.servlet.http.HttpServletRequest,java.util.Map
2018-07-17 15:06:02.209 INFO 7080 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/lastn],methods=[GET]}" onto public java.lang.String org.springframework.cloud.netflix.eureka.server.EurekaController.lastn(javax.servlet.http.HttpServletRequest,java.util.Map
2018-07-17 15:06:02.257 INFO 7080 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-17 15:06:02.258 INFO 7080 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-17 15:06:02.590 INFO 7080 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-17 15:06:04.453 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/logfile || /logfile.json],methods=[GET || HEAD]}" onto public void org.springframework.boot.actuate.endpoint.mvc.LogFileMvcEndpoint.invoke(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws javax.servlet.ServletException,java.io.IOException
2018-07-17 15:06:04.454 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/archaius || /archaius.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.456 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/health || /health.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.HealthMvcEndpoint.invoke(javax.servlet.http.HttpServletRequest,java.security.Principal)
2018-07-17 15:06:04.457 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/auditevents || /auditevents.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public org.springframework.http.ResponseEntity org.springframework.boot.actuate.endpoint.mvc.AuditEventsMvcEndpoint.findByPrincipalAndAfterAndType(java.lang.String,java.util.Date,java.lang.String)
2018-07-17 15:06:04.458 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/beans || /beans.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.460 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/pause || /pause.json],methods=[POST]}" onto public java.lang.Object org.springframework.cloud.endpoint.GenericPostableMvcEndpoint.invoke()
2018-07-17 15:06:04.461 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/service-registry/instance-status],methods=[GET]}" onto public org.springframework.http.ResponseEntity org.springframework.cloud.client.serviceregistry.endpoint.ServiceRegistryEndpoint.getStatus()
2018-07-17 15:06:04.461 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/service-registry/instance-status],methods=[POST]}" onto public org.springframework.http.ResponseEntity org.springframework.cloud.client.serviceregistry.endpoint.ServiceRegistryEndpoint.setStatus(java.lang.String)
2018-07-17 15:06:04.462 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/autoconfig || /autoconfig.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.463 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/metrics/{name:.*}],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.MetricsMvcEndpoint.value(java.lang.String)
2018-07-17 15:06:04.463 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/metrics || /metrics.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.466 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/info || /info.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.468 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/loggers/{name:.*}],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.LoggersMvcEndpoint.get(java.lang.String)
2018-07-17 15:06:04.468 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/loggers/{name:.*}],methods=[POST],consumes=[application/vnd.spring-boot.actuator.v1+json || application/json],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.LoggersMvcEndpoint.set(java.lang.String,java.util.Map
2018-07-17 15:06:04.468 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/loggers || /loggers.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.469 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/resume || /resume.json],methods=[POST]}" onto public java.lang.Object org.springframework.cloud.endpoint.GenericPostableMvcEndpoint.invoke()
2018-07-17 15:06:04.471 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/dump || /dump.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.472 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/env],methods=[POST]}" onto public java.lang.Object org.springframework.cloud.context.environment.EnvironmentManagerMvcEndpoint.value(java.util.Map
2018-07-17 15:06:04.473 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/env/reset],methods=[POST]}" onto public java.util.Map
2018-07-17 15:06:04.473 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/mappings || /mappings.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.474 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/features || /features.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.474 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/trace || /trace.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.475 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/env/{name:.*}],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EnvironmentMvcEndpoint.value(java.lang.String)
2018-07-17 15:06:04.476 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/env || /env.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.478 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/restart || /restart.json],methods=[POST]}" onto public java.lang.Object org.springframework.cloud.context.restart.RestartMvcEndpoint.invoke()
2018-07-17 15:06:04.479 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/heapdump || /heapdump.json],methods=[GET],produces=[application/octet-stream]}" onto public void org.springframework.boot.actuate.endpoint.mvc.HeapdumpMvcEndpoint.invoke(boolean,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws java.io.IOException,javax.servlet.ServletException
2018-07-17 15:06:04.480 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/configprops || /configprops.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2018-07-17 15:06:04.480 INFO 7080 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/refresh || /refresh.json],methods=[POST]}" onto public java.lang.Object org.springframework.cloud.endpoint.GenericPostableMvcEndpoint.invoke()
2018-07-17 15:06:04.762 INFO 7080 --- [ main] o.s.ui.freemarker.SpringTemplateLoader : SpringTemplateLoader for FreeMarker: using resource loader [org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@5b22b970: startup date [Tue Jul 17 15:05:53 GMT+08:00 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@3af0a9da] and template loader path [classpath:/templates/]
2018-07-17 15:06:04.763 INFO 7080 --- [ main] o.s.w.s.v.f.FreeMarkerConfigurer : ClassTemplateLoader for Spring macros added to FreeMarker configuration
2018-07-17 15:06:06.416 WARN 7080 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2018-07-17 15:06:06.440 INFO 7080 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2018-07-17 15:06:06.871 WARN 7080 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2018-07-17 15:06:06.872 INFO 7080 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2018-07-17 15:06:07.545 INFO 7080 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2018-07-17 15:06:07.746 INFO 7080 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2018-07-17 15:06:07.746 INFO 7080 --- [ main] com.netflix.discovery.DiscoveryClient : Client configured to neither register nor query for data.
2018-07-17 15:06:07.996 INFO 7080 --- [ main] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1531811167765 with initial instances count: 0
2018-07-17 15:06:08.140 INFO 7080 --- [ main] c.n.eureka.DefaultEurekaServerContext : Initializing ...
2018-07-17 15:06:08.143 WARN 7080 --- [ main] c.n.eureka.cluster.PeerEurekaNodes : The replica size seems to be empty. Check the route 53 DNS Registry
2018-07-17 15:06:08.159 INFO 7080 --- [ main] c.n.e.registry.AbstractInstanceRegistry : Finished initializing remote region registries. All known remote regions: []
2018-07-17 15:06:08.159 INFO 7080 --- [ main] c.n.eureka.DefaultEurekaServerContext : Initialized
2018-07-17 15:06:08.443 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-07-17 15:06:08.458 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'environmentManager' has been autodetected for JMX exposure
2018-07-17 15:06:08.461 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'configurationPropertiesRebinder' has been autodetected for JMX exposure
2018-07-17 15:06:08.462 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'refreshEndpoint' has been autodetected for JMX exposure
2018-07-17 15:06:08.463 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'restartEndpoint' has been autodetected for JMX exposure
2018-07-17 15:06:08.464 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'serviceRegistryEndpoint' has been autodetected for JMX exposure
2018-07-17 15:06:08.465 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'refreshScope' has been autodetected for JMX exposure
2018-07-17 15:06:08.468 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'environmentManager': registering with JMX server as MBean [org.springframework.cloud.context.environment:name=environmentManager,type=EnvironmentManager]
2018-07-17 15:06:08.492 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'restartEndpoint': registering with JMX server as MBean [org.springframework.cloud.context.restart:name=restartEndpoint,type=RestartEndpoint]
2018-07-17 15:06:08.574 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'serviceRegistryEndpoint': registering with JMX server as MBean [org.springframework.cloud.client.serviceregistry.endpoint:name=serviceRegistryEndpoint,type=ServiceRegistryEndpoint]
2018-07-17 15:06:08.586 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'refreshScope': registering with JMX server as MBean [org.springframework.cloud.context.scope.refresh:name=refreshScope,type=RefreshScope]
2018-07-17 15:06:08.603 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'configurationPropertiesRebinder': registering with JMX server as MBean [org.springframework.cloud.context.properties:name=configurationPropertiesRebinder,context=5b22b970,type=ConfigurationPropertiesRebinder]
2018-07-17 15:06:08.608 INFO 7080 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'refreshEndpoint': registering with JMX server as MBean [org.springframework.cloud.endpoint:name=refreshEndpoint,type=RefreshEndpoint]
2018-07-17 15:06:08.609 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Registering beans for JMX exposure on startup
2018-07-17 15:06:08.979 INFO 7080 --- [ main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 0
2018-07-17 15:06:08.980 INFO 7080 --- [ main] o.s.c.n.e.s.EurekaServiceRegistry : Registering application eureka-server with eureka with status UP
2018-07-17 15:06:08.983 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'auditEventsEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=auditEventsEndpoint]
2018-07-17 15:06:08.991 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'featuresEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=featuresEndpoint]
2018-07-17 15:06:08.998 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'requestMappingEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=requestMappingEndpoint]
2018-07-17 15:06:09.000 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'environmentEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=environmentEndpoint]
2018-07-17 15:06:09.002 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'healthEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=healthEndpoint]
2018-07-17 15:06:09.005 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'beansEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=beansEndpoint]
2018-07-17 15:06:09.007 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'infoEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=infoEndpoint]
2018-07-17 15:06:09.010 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'loggersEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=loggersEndpoint]
2018-07-17 15:06:09.017 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'metricsEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=metricsEndpoint]
2018-07-17 15:06:09.019 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'traceEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=traceEndpoint]
2018-07-17 15:06:09.021 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'dumpEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=dumpEndpoint]
2018-07-17 15:06:09.023 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'autoConfigurationReportEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=autoConfigurationReportEndpoint]
2018-07-17 15:06:09.026 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'configurationPropertiesReportEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=configurationPropertiesReportEndpoint]
2018-07-17 15:06:09.028 INFO 7080 --- [ main] o.s.b.a.e.jmx.EndpointMBeanExporter : Located managed bean 'archaiusEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=archaiusEndpoint]
2018-07-17 15:06:09.039 INFO 7080 --- [ Thread-42] o.s.c.n.e.server.EurekaServerBootstrap : Setting the eureka configuration..
2018-07-17 15:06:09.040 INFO 7080 --- [ Thread-42] o.s.c.n.e.server.EurekaServerBootstrap : Eureka data center value eureka.datacenter is not set, defaulting to default
2018-07-17 15:06:09.040 INFO 7080 --- [ Thread-42] o.s.c.n.e.server.EurekaServerBootstrap : Eureka environment value eureka.environment is not set, defaulting to test
2018-07-17 15:06:09.109 INFO 7080 --- [ Thread-42] o.s.c.n.e.server.EurekaServerBootstrap : isAws returned false
2018-07-17 15:06:09.111 INFO 7080 --- [ Thread-42] o.s.c.n.e.server.EurekaServerBootstrap : Initialized server context
2018-07-17 15:06:09.111 INFO 7080 --- [ Thread-42] c.n.e.r.PeerAwareInstanceRegistryImpl : Got 1 instances from neighboring DS node
2018-07-17 15:06:09.111 INFO 7080 --- [ Thread-42] c.n.e.r.PeerAwareInstanceRegistryImpl : Renew threshold is: 1
2018-07-17 15:06:09.111 INFO 7080 --- [ Thread-42] c.n.e.r.PeerAwareInstanceRegistryImpl : Changing status to UP
2018-07-17 15:06:09.118 INFO 7080 --- [ Thread-42] e.s.EurekaServerInitializerConfiguration : Started Eureka Server
2018-07-17 15:06:09.181 INFO 7080 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 1001 (http)
2018-07-17 15:06:09.183 INFO 7080 --- [ main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 1001
2018-07-17 15:06:09.189 INFO 7080 --- [ main] c.z.eureka.EurekaServerApplication : Started EurekaServerApplication in 17.898 seconds (JVM running for 21.087)
2018-07-17 15:06:13.112 INFO 7080 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 0ms
2018-07-17 15:06:17.112 INFO 7080 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 0ms
2018-07-17 15:06:21.173 INFO 7080 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 61ms
2018-07-17 15:06:21.385 INFO 7080 --- [nio-1001-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring FrameworkServlet 'dispatcherServlet'
2018-07-17 15:06:21.386 INFO 7080 --- [nio-1001-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
2018-07-17 15:06:21.435 INFO 7080 --- [nio-1001-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 49 ms
2018-07-17 15:06:22.438 WARN 7080 --- [nio-1001-exec-2] c.n.e.registry.AbstractInstanceRegistry : DS: Registry: lease doesn't exist, registering resource: EUREKA-PROVIDER - 10.25.26.144:8080
2018-07-17 15:06:22.439 WARN 7080 --- [nio-1001-exec-2] c.n.eureka.resources.InstanceResource : Not Found (Renew): EUREKA-PROVIDER - 10.25.26.144:8080
2018-07-17 15:06:22.564 INFO 7080 --- [nio-1001-exec-3] c.n.e.registry.AbstractInstanceRegistry : Registered instance EUREKA-PROVIDER/10.25.26.144:8080 with status UP (replication=false)
2018-07-17 15:06:25.173 INFO 7080 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 0ms
2018-07-17 15:06:29.173 INFO 7080 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Running the evict task with compensationTime 0ms
2018-07-17 15:06:31.169 WARN 7080 --- [nio-1001-exec-4] c.n.e.registry.AbstractInstanceRegistry : DS: Registry: lease doesn't exist, registering resource: UNKNOWN - 10.25.26.144:8081
2018-07-17 15:06:31.169 WARN 7080 --- [nio-1001-exec-4] c.n.eureka.resources.InstanceResource : Not Found (Renew): UNKNOWN - 10.25.26.144:8081
2018-07-17 15:06:31.198 INFO 7080 --- [nio-1001-exec-6] c.n.e.registry.AbstractInstanceRegistry : Registered instance UNKNOWN/10.25.26.144:8081 with status UP (replication=false)
至此eureka注册中心创建完成，浏览器输入地址：http://localhost:1001/
可以看到如下页面，表示服务启动OK
图片.png
这里这看到还没有服务暴露出来，是因为还没创建服务提供者工程。
服务提供者工程配置
这里服务提供者是使用之前SpringBoot进阶教程 | 第三篇：整合Druid连接池以及Druid监控改造而来，这里一样的部分就不再重复说明，下面将说明新增的部分。首先：修改application.yml配置为如下：
#公共配置
server:
port: 80
tomcat:
uri-encoding: UTF-8
spring:
application:
#服务名称，更关键，使用feign进行服务消费将以此为依据
name: eureka-provider
#激活哪一个环境的配置文件
profiles:
active: dev
#连接池配置
datasource:
driver-class-name: com.mysql.jdbc.Driver
# 使用druid数据源
type: com.alibaba.druid.pool.DruidDataSource
druid:
# 配置测试查询语句
validationQuery: SELECT 1 FROM DUAL
# 初始化大小，最小，最大
initialSize: 10
minIdle: 10
maxActive: 200
# 配置一个连接在池中最小生存的时间，单位是毫秒
minEvictableIdleTimeMillis: 180000
testOnBorrow: false
testWhileIdle: true
removeAbandoned: true
removeAbandonedTimeout: 1800
logAbandoned: true
# 打开PSCache，并且指定每个连接上PSCache的大小
poolPreparedStatements: true
maxOpenPreparedStatements: 100
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
filters: stat,wall,log4j
# 通过connectProperties属性来打开mergeSql功能；慢SQL记录
connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
#配置eureka获取服务地址，这里使用的是本地注册中心
eureka:
client:
serviceUrl:
defaultZone: http://localhost:1001/eureka/
#配置Swagger相关信息
instance:
prefer-ip-address: true
instanceId: ${spring.cloud.client.ipAddress}:${server.port}
status-page-url: http://${spring.cloud.client.ipAddress}:${server.port}/swagger-ui.html # ${server.port}为该服务的端口号
#mybatis
mybatis:
# 实体类扫描
type-aliases-package: cn.zhangbox.springboot.entity
# 配置映射文件位置
mapper-locations: classpath:mapper/*.xml
# 开启驼峰匹配
mapUnderscoreToCamelCase: true
---
#开发环境配置
server:
#端口
port: 8080
spring:
profiles: dev
# 数据源配置
datasource:
url: jdbc:mysql://101.132.66.175:3306/student?useUnicode=true&characterEncoding=utf8&useSSL=false&tinyInt1isBit=true
username: root
password: 123456
#日志
logging:
config: classpath:log/logback.xml
path: log/eureka-provider
---
#测试环境配置
server:
#端口
port: 80
spring:
profiles: test
# 数据源配置
datasource:
url: jdbc:mysql://127.0.0.1:3306/eureka-provider?useUnicode=true&characterEncoding=utf8&useSSL=false&tinyInt1isBit=true
username: root
password: 123456
#日志
logging:
config: classpath:log/logback.xml
path: /home/log/eureka-provider
---
#生产环境配置
server:
#端口
port: 8080
spring:
profiles: prod
# 数据源配置
datasource:
url: jdbc:mysql://127.0.0.1:3306/eureka-provider?useUnicode=true&characterEncoding=utf8&useSSL=false&tinyInt1isBit=true
username: root
password: 123456
#日志
logging:
config: classpath:log/logback.xml
path: /home/log/eureka-provider
其次：在config目录下增加SwaggerConfig类加入以下代码：
@Configuration
@EnableSwagger2
public class SwaggerConfig {
@Bean
public Docket userApi() {
Docket docket = new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo())
.select()
.apis(RequestHandlerSelectors.basePackage("cn.zhangbox.eureka.provider.controller"))//过滤的接口，有这扫描才会看到接口信息
.paths(PathSelectors.any())
.build();
return docket;
}
private ApiInfo apiInfo() {
return new ApiInfoBuilder().title("eureka服务端提供者接口平台").description("服务相关数据接口")
.termsOfServiceUrl("http://www.zhang.box.cn/").contact("技术开发部")
.license("Licence Version 1.0").licenseUrl("#").version("1.0").build();
}
}
这里如果不会使用swagger的整合可以参考这篇文章：SpringBoot非官方教程 | 第十一篇：SpringBoot集成swagger2，构建优雅的Restful API
接着：创建核心启动类：
@EnableDiscoveryClient //使用该注解将注册服务到eureka
@SpringBootApplication
@MapperScan("cn.zhangbox.eureka.provider.dao")//配置mybatis接口包扫描
public class EurekaProviderApplication extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(EurekaProviderApplication.class, args);
}
}
最后：启动项目，看到如下日志打印信息：
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.3.RELEASE)
2018-07-17 15:29:29.267 INFO 12312 --- [ main] c.z.e.p.EurekaProviderApplication : The following profiles are active: dev
2018-07-17 15:29:29.295 INFO 12312 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@51827393: startup date [Tue Jul 17 15:29:29 GMT+08:00 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@4241e0f4
2018-07-17 15:29:30.902 INFO 12312 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'filterRegistrationBean' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=druidDBConfig; factoryMethodName=filterRegistrationBean; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [cn/zhangbox/eureka/provider/config/DruidDBConfig.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=com.alibaba.druid.spring.boot.autoconfigure.stat.DruidWebStatFilterConfiguration; factoryMethodName=filterRegistrationBean; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [com/alibaba/druid/spring/boot/autoconfigure/stat/DruidWebStatFilterConfiguration.class]]
2018-07-17 15:29:31.251 INFO 12312 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=608dd1ca-975a-302d-aa26-cd8dca769951
2018-07-17 15:29:31.277 INFO 12312 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2018-07-17 15:29:31.389 INFO 12312 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$d6e9b9c7] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-07-17 15:29:31.449 INFO 12312 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$f303bcc4] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-07-17 15:29:32.818 INFO 12312 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2018-07-17 15:29:32.829 INFO 12312 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2018-07-17 15:29:32.830 INFO 12312 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.14
2018-07-17 15:29:33.250 INFO 12312 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2018-07-17 15:29:33.250 INFO 12312 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 3955 ms
2018-07-17 15:29:33.605 INFO 12312 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'statViewServlet' to [/druid/*]
2018-07-17 15:29:33.607 INFO 12312 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2018-07-17 15:29:33.608 INFO 12312 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'statViewServlet' to [/druid/*]
2018-07-17 15:29:33.608 INFO 12312 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet statViewServlet was not registered (possibly already registered?)
2018-07-17 15:29:33.614 INFO 12312 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-07-17 15:29:33.614 INFO 12312 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-07-17 15:29:33.614 INFO 12312 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-07-17 15:29:33.614 INFO 12312 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2018-07-17 15:29:33.615 INFO 12312 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'webStatFilter' to urls: [/*]
2018-07-17 15:29:36.473 INFO 12312 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/student/list],methods=[GET]}" onto public java.lang.String cn.zhangbox.eureka.provider.controller.StudentConteroller.list(java.lang.String,java.lang.Integer,org.springframework.ui.ModelMap)
2018-07-17 15:29:36.475 INFO 12312 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v2/api-docs],methods=[GET],produces=[application/json || application/hal+json]}" onto public org.springframework.http.ResponseEntity
2018-07-17 15:29:36.478 INFO 12312 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/swagger-resources/configuration/ui]}" onto org.springframework.http.ResponseEntity
2018-07-17 15:29:36.479 INFO 12312 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/swagger-resources]}" onto org.springframework.http.ResponseEntity
2018-07-17 15:29:36.480 INFO 12312 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/swagger-resources/configuration/security]}" onto org.springframework.http.ResponseEntity
2018-07-17 15:29:36.483 INFO 12312 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity
2018-07-17 15:29:36.483 INFO 12312 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-07-17 15:29:37.292 INFO 12312 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@51827393: startup date [Tue Jul 17 15:29:29 GMT+08:00 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@4241e0f4
2018-07-17 15:29:37.651 INFO 12312 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-17 15:29:37.651 INFO 12312 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-17 15:29:37.717 INFO 12312 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-17 15:29:38.371 WARN 12312 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2018-07-17 15:29:38.385 INFO 12312 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2018-07-17 15:29:38.390 WARN 12312 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2018-07-17 15:29:38.391 INFO 12312 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2018-07-17 15:29:38.619 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-07-17 15:29:38.622 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'statFilter' has been autodetected for JMX exposure
2018-07-17 15:29:38.622 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'dataSource' has been autodetected for JMX exposure
2018-07-17 15:29:38.631 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'environmentManager' has been autodetected for JMX exposure
2018-07-17 15:29:38.633 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'configurationPropertiesRebinder' has been autodetected for JMX exposure
2018-07-17 15:29:38.634 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'refreshScope' has been autodetected for JMX exposure
2018-07-17 15:29:38.638 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'environmentManager': registering with JMX server as MBean [org.springframework.cloud.context.environment:name=environmentManager,type=EnvironmentManager]
2018-07-17 15:29:38.942 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'refreshScope': registering with JMX server as MBean [org.springframework.cloud.context.scope.refresh:name=refreshScope,type=RefreshScope]
2018-07-17 15:29:38.955 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'configurationPropertiesRebinder': registering with JMX server as MBean [org.springframework.cloud.context.properties:name=configurationPropertiesRebinder,context=51827393,type=ConfigurationPropertiesRebinder]
2018-07-17 15:29:38.963 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located MBean 'dataSource': registering with JMX server as MBean [com.alibaba.druid.spring.boot.autoconfigure:name=dataSource,type=DruidDataSourceWrapper]
2018-07-17 15:29:38.965 INFO 12312 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located MBean 'statFilter': registering with JMX server as MBean [com.alibaba.druid.filter.stat:name=statFilter,type=StatFilter]
2018-07-17 15:29:39.410 INFO 12312 --- [ main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 0
2018-07-17 15:29:39.418 INFO 12312 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2018-07-17 15:29:39.548 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2018-07-17 15:29:40.130 INFO 12312 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2018-07-17 15:29:40.131 INFO 12312 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2018-07-17 15:29:40.256 INFO 12312 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2018-07-17 15:29:40.256 INFO 12312 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2018-07-17 15:29:41.457 INFO 12312 --- [ main] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration
2018-07-17 15:29:41.579 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Disable delta property : false
2018-07-17 15:29:41.579 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Single vip registry refresh property : null
2018-07-17 15:29:41.579 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Force full registry fetch : false
2018-07-17 15:29:41.579 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Application is null : false
2018-07-17 15:29:41.579 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Registered Applications size is zero : true
2018-07-17 15:29:41.579 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Application version is -1: true
2018-07-17 15:29:41.579 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Getting all instance registry info from the eureka server
2018-07-17 15:29:42.334 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : The response status is 200
2018-07-17 15:29:42.336 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Starting heartbeat executor: renew interval is: 30
2018-07-17 15:29:42.339 INFO 12312 --- [ main] c.n.discovery.InstanceInfoReplicator : InstanceInfoReplicator onDemand update allowed rate per min is 4
2018-07-17 15:29:42.344 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1531812582343 with initial instances count: 0
2018-07-17 15:29:42.364 INFO 12312 --- [ main] o.s.c.n.e.s.EurekaServiceRegistry : Registering application eureka-provider with eureka with status UP
2018-07-17 15:29:42.365 INFO 12312 --- [ main] com.netflix.discovery.DiscoveryClient : Saw local status change event StatusChangeEvent [timestamp=1531812582365, current=UP, previous=STARTING]
2018-07-17 15:29:42.367 INFO 12312 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_EUREKA-PROVIDER/10.25.26.144:8080: registering service...
2018-07-17 15:29:42.369 INFO 12312 --- [ main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 2147483647
2018-07-17 15:29:42.369 INFO 12312 --- [ main] d.s.w.p.DocumentationPluginsBootstrapper : Context refreshed
2018-07-17 15:29:42.450 INFO 12312 --- [ main] d.s.w.p.DocumentationPluginsBootstrapper : Found 1 custom documentation plugin(s)
2018-07-17 15:29:42.575 INFO 12312 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_EUREKA-PROVIDER/10.25.26.144:8080 - registration status: 204
2018-07-17 15:29:42.741 INFO 12312 --- [ main] s.d.s.w.s.ApiListingReferenceScanner : Scanning for api listing references
2018-07-17 15:29:42.849 WARN 12312 --- [ main] s.d.s.w.r.p.ParameterDataTypeReader : Trying to infer dataType org.springframework.ui.ModelMap
2018-07-17 15:29:43.087 INFO 12312 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2018-07-17 15:29:43.088 INFO 12312 --- [ main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 8080
2018-07-17 15:29:43.094 INFO 12312 --- [ main] c.z.e.p.EurekaProviderApplication : Started EurekaProviderApplication in 16.419 seconds (JVM running for 21.462)
至此eureka-provider服务提供者创建完成，浏览器输入地址：http://localhost:1001/
可以看到如下页面，表示服务注册OK
图片.png
点击Status下的ip后可以跳转看到swagger的页面并可是测试服务提供者的接口，如下：
图片.png
服务消费者工程配置
这里构建的工程名为eureka-consumer,上文已经构建了工程但是没有创建目录，这里只需要在java目录下创建config、controller，service，包即可，这里服务的消费是通过feign来进行服务调用的，后面会有专门以篇文章来讲feign。首先：在eureka-consumer工程下resource目录下添加application.yml文件并加入以下配置：
#公共配置
server:
port: 80
tomcat:
uri-encoding: UTF-8
spring:
#服务名称，更关键，使用feign进行服务消费将以此为依据
application:
name: eureka-consumer
#激活哪一个环境的配置文件
profiles:
active: dev
#配置eureka获取服务地址，这里使用的是本地注册中心
eureka:
client:
serviceUrl:
defaultZone: http://localhost:1001/eureka/
#配置instance相关信息
instance:
prefer-ip-address: true
instanceId: ${spring.cloud.client.ipAddress}:${server.port}
status-page-url: http://${spring.cloud.client.ipAddress}:${server.port}/swagger-ui.html # ${server.port}为该服务的端口号
---
#开发环境配置
server:
#端口
port: 8081
spring:
profiles: dev
#日志
logging:
config: classpath:log/logback.xml
path: log/eureka-consumer
---
#测试环境配置
server:
#端口
port: 8082
spring:
profiles: test
#日志
logging:
config: classpath:log/logback.xml
path: /home/log/eureka-consumer
---
#生产环境配置
server:
#端口
port: 8083
spring:
profiles: prod
#日志
logging:
config: classpath:log/logback.xml
path: /home/log/eureka-consumer
其次：在config目录下增加SwaggerConfig类加入以下代码：
@Configuration
@EnableSwagger2
public class SwaggerConfig {
@Bean
public Docket userApi() {
Docket docket = new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo())
.select()
.apis(RequestHandlerSelectors.basePackage("cn.zhangbox.eureka.consumer.controller"))//过滤的接口，有这扫描才会看到接口信息
.paths(PathSelectors.any())
.build();
return docket;
}
private ApiInfo apiInfo() {
return new ApiInfoBuilder().title("eureka服务端消费者接口平台").description("服务相关数据接口")
.termsOfServiceUrl("http://www.zhang.box.cn/").contact("技术开发部")
.license("Licence Version 1.0").licenseUrl("#").version("1.0").build();
}
}
接着：在service包下创建StudentConsumerService类并加入以下代码：
@FeignClient(value = "eureka-provider")
public interface StudentConsumerService {
/**
* 查询所有的学生信息
*
* @param sname
* @param age
* @return
*/
@RequestMapping(value = "/student/list",method = RequestMethod.GET)
String getStudentList(@RequestParam(value = "sname") String sname, @RequestParam(value = "age") Integer age);
}
然后：在controller包下创建StudentConteroller并加入如下代码：
@Controller
@RequestMapping("/student")
@Api(value = "eureka-consumer", description = "学生查询接口")
public class StudentConteroller {
private static final Logger LOGGER = LoggerFactory.getLogger(StudentConteroller.class);
@Autowired
StudentConsumerService studentService;
/**
* 查询所有的学生信息
*
* @param sname
* @param age
* @param modelMap
* @return
*/
@ResponseBody
@GetMapping("/consumer/list")
public String list(
@ApiParam(value = "学生姓名") @RequestParam(required = false) String sname,
@ApiParam(value = "年龄") @RequestParam(required = false) Integer age,
ModelMap modelMap) {
String json = null;
try {
json = studentService.getStudentList(sname, age);
} catch (Exception e) {
e.printStackTrace();
modelMap.put("ren_code", "0");
modelMap.put("ren_msg", "查询失败===>" + e);
LOGGER.error("查询失败===>" + e);
json = JSON.toJSONString(modelMap);
}
return json;
}
}
接着：创建核心启动类：
@EnableFeignClients//开启Feign调用接口
@EnableDiscoveryClient//开启客户端服务，没有这个注解会报Feign找不到对应服务的错误
@SpringBootApplication
public class EurekaConsumerApplication extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(EurekaConsumerApplication.class, args);
}
}
最后：启动项目，看到如下日志打印信息：
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.3.RELEASE)
2018-07-17 15:56:10.446 INFO 9400 --- [ main] c.z.e.c.EurekaConsumerApplication : The following profiles are active: dev
2018-07-17 15:56:10.480 INFO 9400 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7a799159: startup date [Tue Jul 17 15:56:10 GMT+08:00 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@3b8f0a79
2018-07-17 15:56:11.536 INFO 9400 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=6ee65f72-d692-3f45-bb25-4625a69b17da
2018-07-17 15:56:11.558 INFO 9400 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2018-07-17 15:56:11.590 INFO 9400 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'cn.zhangbox.eureka.consumer.service.StudentConsumerService' of type [org.springframework.cloud.netflix.feign.FeignClientFactoryBean] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-07-17 15:56:11.640 INFO 9400 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$89a7f8be] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-07-17 15:56:12.196 INFO 9400 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8081 (http)
2018-07-17 15:56:12.265 INFO 9400 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2018-07-17 15:56:12.271 INFO 9400 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.14
2018-07-17 15:56:12.658 INFO 9400 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2018-07-17 15:56:12.658 INFO 9400 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2178 ms
2018-07-17 15:56:12.841 INFO 9400 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2018-07-17 15:56:12.847 INFO 9400 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-07-17 15:56:12.881 INFO 9400 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-07-17 15:56:12.881 INFO 9400 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-07-17 15:56:12.881 INFO 9400 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2018-07-17 15:56:12.985 INFO 9400 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@6723610b: startup date [Tue Jul 17 15:56:12 GMT+08:00 2018]; parent: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7a799159
2018-07-17 15:56:13.039 INFO 9400 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2018-07-17 15:56:13.898 INFO 9400 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/student/consumer/list],methods=[GET]}" onto public java.lang.String cn.zhangbox.eureka.consumer.controller.StudentConteroller.list(java.lang.String,java.lang.Integer,org.springframework.ui.ModelMap)
2018-07-17 15:56:13.900 INFO 9400 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/v2/api-docs],methods=[GET],produces=[application/json || application/hal+json]}" onto public org.springframework.http.ResponseEntity
2018-07-17 15:56:13.902 INFO 9400 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/swagger-resources/configuration/ui]}" onto org.springframework.http.ResponseEntity
2018-07-17 15:56:13.903 INFO 9400 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/swagger-resources]}" onto org.springframework.http.ResponseEntity
2018-07-17 15:56:13.904 INFO 9400 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/swagger-resources/configuration/security]}" onto org.springframework.http.ResponseEntity
2018-07-17 15:56:13.907 INFO 9400 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity
2018-07-17 15:56:13.908 INFO 9400 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-07-17 15:56:14.482 INFO 9400 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7a799159: startup date [Tue Jul 17 15:56:10 GMT+08:00 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@3b8f0a79
2018-07-17 15:56:14.555 INFO 9400 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-17 15:56:14.555 INFO 9400 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-17 15:56:14.643 INFO 9400 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-17 15:56:15.188 WARN 9400 --- [ main] o.s.c.n.a.ArchaiusAutoConfiguration : No spring.application.name found, defaulting to 'application'
2018-07-17 15:56:15.218 WARN 9400 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2018-07-17 15:56:15.218 INFO 9400 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2018-07-17 15:56:15.223 WARN 9400 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2018-07-17 15:56:15.223 INFO 9400 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2018-07-17 15:56:15.373 INFO 9400 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-07-17 15:56:15.383 INFO 9400 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'environmentManager' has been autodetected for JMX exposure
2018-07-17 15:56:15.385 INFO 9400 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'configurationPropertiesRebinder' has been autodetected for JMX exposure
2018-07-17 15:56:15.387 INFO 9400 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'refreshScope' has been autodetected for JMX exposure
2018-07-17 15:56:15.391 INFO 9400 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'environmentManager': registering with JMX server as MBean [org.springframework.cloud.context.environment:name=environmentManager,type=EnvironmentManager]
2018-07-17 15:56:15.428 INFO 9400 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'refreshScope': registering with JMX server as MBean [org.springframework.cloud.context.scope.refresh:name=refreshScope,type=RefreshScope]
2018-07-17 15:56:15.442 INFO 9400 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located managed bean 'configurationPropertiesRebinder': registering with JMX server as MBean [org.springframework.cloud.context.properties:name=configurationPropertiesRebinder,context=7a799159,type=ConfigurationPropertiesRebinder]
2018-07-17 15:56:15.562 INFO 9400 --- [ main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 0
2018-07-17 15:56:15.570 INFO 9400 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2018-07-17 15:56:15.634 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2018-07-17 15:56:16.225 INFO 9400 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2018-07-17 15:56:16.225 INFO 9400 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2018-07-17 15:56:16.345 INFO 9400 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2018-07-17 15:56:16.346 INFO 9400 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2018-07-17 15:56:16.826 INFO 9400 --- [ main] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration
2018-07-17 15:56:16.965 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Disable delta property : false
2018-07-17 15:56:16.966 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Single vip registry refresh property : null
2018-07-17 15:56:16.966 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Force full registry fetch : false
2018-07-17 15:56:16.966 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Application is null : false
2018-07-17 15:56:16.966 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Registered Applications size is zero : true
2018-07-17 15:56:16.967 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Application version is -1: true
2018-07-17 15:56:16.967 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Getting all instance registry info from the eureka server
2018-07-17 15:56:17.184 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : The response status is 200
2018-07-17 15:56:17.186 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Starting heartbeat executor: renew interval is: 30
2018-07-17 15:56:17.189 INFO 9400 --- [ main] c.n.discovery.InstanceInfoReplicator : InstanceInfoReplicator onDemand update allowed rate per min is 4
2018-07-17 15:56:17.195 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1531814177194 with initial instances count: 1
2018-07-17 15:56:17.218 INFO 9400 --- [ main] o.s.c.n.e.s.EurekaServiceRegistry : Registering application unknown with eureka with status UP
2018-07-17 15:56:17.219 INFO 9400 --- [ main] com.netflix.discovery.DiscoveryClient : Saw local status change event StatusChangeEvent [timestamp=1531814177219, current=UP, previous=STARTING]
2018-07-17 15:56:17.221 INFO 9400 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_UNKNOWN/10.25.26.144:8081: registering service...
2018-07-17 15:56:17.222 INFO 9400 --- [ main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 2147483647
2018-07-17 15:56:17.223 INFO 9400 --- [ main] d.s.w.p.DocumentationPluginsBootstrapper : Context refreshed
2018-07-17 15:56:17.261 INFO 9400 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_UNKNOWN/10.25.26.144:8081 - registration status: 204
2018-07-17 15:56:17.280 INFO 9400 --- [ main] d.s.w.p.DocumentationPluginsBootstrapper : Found 1 custom documentation plugin(s)
2018-07-17 15:56:17.305 INFO 9400 --- [ main] s.d.s.w.s.ApiListingReferenceScanner : Scanning for api listing references
2018-07-17 15:56:17.379 WARN 9400 --- [ main] s.d.s.w.r.p.ParameterDataTypeReader : Trying to infer dataType org.springframework.ui.ModelMap
2018-07-17 15:56:17.614 INFO 9400 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8081 (http)
2018-07-17 15:56:17.616 INFO 9400 --- [ main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 8081
2018-07-17 15:56:17.621 INFO 9400 --- [ main] c.z.e.c.EurekaConsumerApplication : Started EurekaConsumerApplication in 9.852 seconds (JVM running for 12.176)
至此eureka-consumer服务提供者创建完成，浏览器输入地址：http://127.0.0.1:8081/swagger-ui.html
同样也可以点击eureka控制台中Application为EUREKA-CONSUMER后Status下的ip后可以跳转看到swagger的页面并可是测试服务消费者的接口,可以看到如下页面，并点击try it out按钮，返回了正确的学生信息数据
图片.png
返回数据如下：
图片.png
{
"ren_code": "0",
"ren_msg": "查询成功",
"studentList": [{
"age": "17",
"birth": "2010-07-22",
"dept": "王同学学习成绩很不错",
"sex": "1",
"sname": "王同学",
"sno": 1
}, {
"age": "17",
"birth": "2010-07-22",
"dept": "李同学学习成绩很不错",
"sex": "1",
"sname": "李同学",
"sno": 2
}]
}
以上就是spring cloud基于eurka实现分布式服务注册与消费的整合流程，是不是很简单，你也来小试牛刀一把吧。
写在最后
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作者：星缘1314
链接：https://www.jianshu.com/p/cb57e2ae84f4
來源：简书
简书著作权归作者所有，任何形式的转载都请联系作者获得授权并注明出处。
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