本文设计3个项目
- 1 spring-cloud-eureka-server : 注册中心
- 2 spring-cloud-eureka-client : 注册客户端
- 3 spring-cloud-eureka-feign-client : 注册客户端 使用 feign实现，用到 2的项目
项目目录：
- https://github.com/thefirstwind/springcloud-series/tree/master/spring-cloud-eureka-server
- https://github.com/thefirstwind/springcloud-series/tree/master/spring-cloud-eureka-client
- https://github.com/thefirstwind/springcloud-series/tree/master/spring-cloud-eureka-feign-client
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>package com.thefirstwind.eurekaServer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class EurekaServerApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApplication.class, args);
}
}server:
port: 8761
eureka:
client:
registerWithEureka: false
fetchRegistry: falsecd spring-cloud-eureka-server
mvn spring-boot:run2020-09-24 16:56:58.180 INFO 34651 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@57332cd6: startup date [Thu Sep 24 16:56:58 CST 2020]; root of context hierarchy
2020-09-24 16:56:59.760 INFO 34651 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2020-09-24 16:57:00.065 INFO 34651 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'configurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$c6edcaa6] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.0.0.RELEASE)
2020-09-24 16:57:01.478 INFO 34651 --- [ main] c.t.e.EurekaServerApplication : No active profile set, falling back to default profiles: default
2020-09-24 16:57:01.564 INFO 34651 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@4bd46bce: startup date [Thu Sep 24 16:57:01 CST 2020]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@57332cd6
2020-09-24 16:57:04.153 INFO 34651 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'environmentWebEndpointExtension' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.actuate.autoconfigure.env.EnvironmentEndpointAutoConfiguration; factoryMethodName=environmentWebEndpointExtension; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/actuate/autoconfigure/env/EnvironmentEndpointAutoConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.cloud.autoconfigure.LifecycleMvcEndpointAutoConfiguration$EndpointConfiguration; factoryMethodName=environmentWebEndpointExtension; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/cloud/autoconfigure/LifecycleMvcEndpointAutoConfiguration$EndpointConfiguration.class]]
2020-09-24 16:57:06.291 INFO 34651 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=107e5e83-f1f6-3eb2-a294-6ef0976d89ea
2020-09-24 16:57:06.385 INFO 34651 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2020-09-24 16:57:06.715 INFO 34651 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$c6edcaa6] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-09-24 16:57:07.895 INFO 34651 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8761 (http)
2020-09-24 16:57:08.007 INFO 34651 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-09-24 16:57:08.008 INFO 34651 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.28
2020-09-24 16:57:08.026 INFO 34651 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/xingxn/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
2020-09-24 16:57:08.212 INFO 34651 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-09-24 16:57:08.213 INFO 34651 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 6649 ms
2020-09-24 16:57:12.153 INFO 34651 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2020-09-24 16:57:12.155 INFO 34651 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2020-09-24 16:57:12.155 INFO 34651 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2020-09-24 16:57:12.155 INFO 34651 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2020-09-24 16:57:12.156 INFO 34651 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpTraceFilter' to: [/*]
2020-09-24 16:57:12.156 INFO 34651 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'webMvcMetricsFilter' to: [/*]
2020-09-24 16:57:12.156 INFO 34651 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'servletContainer' to urls: [/eureka/*]
2020-09-24 16:57:12.156 INFO 34651 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2020-09-24 16:57:12.295 INFO 34651 --- [ost-startStop-1] c.s.j.s.i.a.WebApplicationImpl : Initiating Jersey application, version 'Jersey: 1.19.1 03/11/2016 02:08 PM'
2020-09-24 16:57:12.384 INFO 34651 --- [ost-startStop-1] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2020-09-24 16:57:12.385 INFO 34651 --- [ost-startStop-1] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2020-09-24 16:57:12.532 INFO 34651 --- [ost-startStop-1] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2020-09-24 16:57:12.532 INFO 34651 --- [ost-startStop-1] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2020-09-24 16:57:13.069 WARN 34651 --- [ main] o.s.c.n.a.ArchaiusAutoConfiguration : No spring.application.name found, defaulting to 'application'
2020-09-24 16:57:13.075 WARN 34651 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2020-09-24 16:57:13.075 INFO 34651 --- [ 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.
2020-09-24 16:57:13.085 WARN 34651 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2020-09-24 16:57:13.085 INFO 34651 --- [ 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.
2020-09-24 16:57:13.360 INFO 34651 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@4bd46bce: startup date [Thu Sep 24 16:57:01 CST 2020]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@57332cd6
2020-09-24 16:57:13.783 INFO 34651 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2020-09-24 16:57:13.785 INFO 34651 --- [ 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.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2020-09-24 16:57:13.793 INFO 34651 --- [ 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<java.lang.String, java.lang.Object>)
2020-09-24 16:57:13.794 INFO 34651 --- [ 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<java.lang.String, java.lang.Object>)
2020-09-24 16:57:13.850 INFO 34651 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2020-09-24 16:57:13.850 INFO 34651 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2020-09-24 16:57:13.923 INFO 34651 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2020-09-24 16:57:14.427 INFO 34651 --- [ main] o.s.ui.freemarker.SpringTemplateLoader : SpringTemplateLoader for FreeMarker: using resource loader [org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@4bd46bce: startup date [Thu Sep 24 16:57:01 CST 2020]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@57332cd6] and template loader path [classpath:/templates/]
2020-09-24 16:57:14.429 INFO 34651 --- [ main] o.s.w.s.v.f.FreeMarkerConfigurer : ClassTemplateLoader for Spring macros added to FreeMarker configuration
2020-09-24 16:57:14.662 INFO 34651 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2020-09-24 16:57:14.721 INFO 34651 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2020-09-24 16:57:14.722 INFO 34651 --- [ main] com.netflix.discovery.DiscoveryClient : Client configured to neither register nor query for data.
2020-09-24 16:57:14.742 INFO 34651 --- [ main] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1600937834738 with initial instances count: 0
2020-09-24 16:57:14.833 INFO 34651 --- [ main] c.n.eureka.DefaultEurekaServerContext : Initializing ...
2020-09-24 16:57:14.836 INFO 34651 --- [ main] c.n.eureka.cluster.PeerEurekaNodes : Adding new peer nodes [http://localhost:8761/eureka/]
2020-09-24 16:57:15.170 INFO 34651 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2020-09-24 16:57:15.170 INFO 34651 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2020-09-24 16:57:15.170 INFO 34651 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2020-09-24 16:57:15.170 INFO 34651 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2020-09-24 16:57:15.375 INFO 34651 --- [ main] c.n.eureka.cluster.PeerEurekaNodes : Replica node URL: http://localhost:8761/eureka/
2020-09-24 16:57:15.388 INFO 34651 --- [ main] c.n.e.registry.AbstractInstanceRegistry : Finished initializing remote region registries. All known remote regions: []
2020-09-24 16:57:15.389 INFO 34651 --- [ main] c.n.eureka.DefaultEurekaServerContext : Initialized
2020-09-24 16:57:15.559 INFO 34651 --- [ main] s.b.a.e.w.s.WebMvcEndpointHandlerMapping : Mapped "{[/actuator/health],methods=[GET],produces=[application/vnd.spring-boot.actuator.v2+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.web.servlet.AbstractWebMvcEndpointHandlerMapping$OperationHandler.handle(javax.servlet.http.HttpServletRequest,java.util.Map<java.lang.String, java.lang.String>)
2020-09-24 16:57:15.564 INFO 34651 --- [ main] s.b.a.e.w.s.WebMvcEndpointHandlerMapping : Mapped "{[/actuator/info],methods=[GET],produces=[application/vnd.spring-boot.actuator.v2+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.web.servlet.AbstractWebMvcEndpointHandlerMapping$OperationHandler.handle(javax.servlet.http.HttpServletRequest,java.util.Map<java.lang.String, java.lang.String>)
2020-09-24 16:57:15.566 INFO 34651 --- [ main] s.b.a.e.w.s.WebMvcEndpointHandlerMapping : Mapped "{[/actuator],methods=[GET],produces=[application/vnd.spring-boot.actuator.v2+json || application/json]}" onto protected java.util.Map<java.lang.String, java.util.Map<java.lang.String, org.springframework.boot.actuate.endpoint.web.Link>> org.springframework.boot.actuate.endpoint.web.servlet.WebMvcEndpointHandlerMapping.links(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2020-09-24 16:57:15.747 INFO 34651 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2020-09-24 16:57:15.778 INFO 34651 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'configurationPropertiesRebinder' has been autodetected for JMX exposure
2020-09-24 16:57:15.782 INFO 34651 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'environmentManager' has been autodetected for JMX exposure
2020-09-24 16:57:15.786 INFO 34651 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'refreshScope' has been autodetected for JMX exposure
2020-09-24 16:57:15.794 INFO 34651 --- [ 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]
2020-09-24 16:57:15.811 INFO 34651 --- [ 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]
2020-09-24 16:57:15.838 INFO 34651 --- [ 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=4bd46bce,type=ConfigurationPropertiesRebinder]
2020-09-24 16:57:15.868 INFO 34651 --- [ main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 0
2020-09-24 16:57:15.869 INFO 34651 --- [ main] o.s.c.n.e.s.EurekaServiceRegistry : Registering application unknown with eureka with status UP
2020-09-24 16:57:15.881 INFO 34651 --- [ Thread-13] o.s.c.n.e.server.EurekaServerBootstrap : Setting the eureka configuration..
2020-09-24 16:57:15.883 INFO 34651 --- [ Thread-13] o.s.c.n.e.server.EurekaServerBootstrap : Eureka data center value eureka.datacenter is not set, defaulting to default
2020-09-24 16:57:15.884 INFO 34651 --- [ Thread-13] o.s.c.n.e.server.EurekaServerBootstrap : Eureka environment value eureka.environment is not set, defaulting to test
2020-09-24 16:57:15.899 INFO 34651 --- [ Thread-13] o.s.c.n.e.server.EurekaServerBootstrap : isAws returned false
2020-09-24 16:57:15.900 INFO 34651 --- [ Thread-13] o.s.c.n.e.server.EurekaServerBootstrap : Initialized server context
2020-09-24 16:57:15.900 INFO 34651 --- [ Thread-13] c.n.e.r.PeerAwareInstanceRegistryImpl : Got 1 instances from neighboring DS node
2020-09-24 16:57:15.900 INFO 34651 --- [ Thread-13] c.n.e.r.PeerAwareInstanceRegistryImpl : Renew threshold is: 1
2020-09-24 16:57:15.900 INFO 34651 --- [ Thread-13] c.n.e.r.PeerAwareInstanceRegistryImpl : Changing status to UP
2020-09-24 16:57:15.915 INFO 34651 --- [ Thread-13] e.s.EurekaServerInitializerConfiguration : Started Eureka Server
2020-09-24 16:57:16.008 INFO 34651 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8761 (http) with context path ''
2020-09-24 16:57:16.010 INFO 34651 --- [ main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 8761
2020-09-24 16:57:16.013 INFO 34651 --- [ main] c.t.e.EurekaServerApplication : Started EurekaServerApplication in 19.712 seconds (JVM running for 28.603)
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>package com.thefirstwind.eurekaClient;
import com.netflix.discovery.EurekaClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Lazy;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
@RestController
public class EurekaClientApplication {
@Autowired
@Lazy
private EurekaClient eurekaClient;
@Value("${spring.application.name}")
private String appName;
public static void main(String[] args) {
SpringApplication.run(EurekaClientApplication.class, args);
}
@RequestMapping("/greeting")
public String greeting() {
return String.format(
"Hello from '%s'!", eurekaClient.getApplication(appName).getName());
}
}spring:
application:
name: spring-cloud-eureka-client
server:
port: 0
eureka:
client:
serviceUrl:
defaultZone: ${EUREKA_URI:http://localhost:8761/eureka}
instance:
preferIpAddress: true
cd spring-cloud-eureka-client
mvn spring-boot:run2020-09-24 17:12:50.317 INFO 35621 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@143a09e5: startup date [Thu Sep 24 17:12:50 CST 2020]; root of context hierarchy
2020-09-24 17:12:50.979 INFO 35621 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2020-09-24 17:12:51.100 INFO 35621 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'configurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$b538e1d4] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.0.0.RELEASE)
2020-09-24 17:12:51.439 INFO 35621 --- [ main] c.t.e.EurekaClientApplication : No active profile set, falling back to default profiles: default
2020-09-24 17:12:51.486 INFO 35621 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@6e4ec20: startup date [Thu Sep 24 17:12:51 CST 2020]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@143a09e5
2020-09-24 17:12:52.352 INFO 35621 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=a45ee373-8d9d-3366-a0b5-63ca61fe8113
2020-09-24 17:12:52.391 INFO 35621 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2020-09-24 17:12:52.540 INFO 35621 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$b538e1d4] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-09-24 17:12:52.901 INFO 35621 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 0 (http)
2020-09-24 17:12:52.961 INFO 35621 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-09-24 17:12:52.962 INFO 35621 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.28
2020-09-24 17:12:52.976 INFO 35621 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/Users/xingxn/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.]
2020-09-24 17:12:53.115 INFO 35621 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-09-24 17:12:53.115 INFO 35621 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1629 ms
2020-09-24 17:12:53.316 INFO 35621 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2020-09-24 17:12:53.322 INFO 35621 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2020-09-24 17:12:53.323 INFO 35621 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2020-09-24 17:12:53.323 INFO 35621 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2020-09-24 17:12:53.324 INFO 35621 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2020-09-24 17:12:53.575 WARN 35621 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2020-09-24 17:12:53.575 INFO 35621 --- [ 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.
2020-09-24 17:12:53.583 WARN 35621 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2020-09-24 17:12:53.584 INFO 35621 --- [ 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.
2020-09-24 17:12:53.814 INFO 35621 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@6e4ec20: startup date [Thu Sep 24 17:12:51 CST 2020]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@143a09e5
2020-09-24 17:12:53.926 INFO 35621 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/greeting]}" onto public java.lang.String com.thefirstwind.eurekaClient.EurekaClientApplication.greeting()
2020-09-24 17:12:53.933 INFO 35621 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2020-09-24 17:12:53.934 INFO 35621 --- [ 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.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2020-09-24 17:12:54.003 INFO 35621 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2020-09-24 17:12:54.003 INFO 35621 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2020-09-24 17:12:54.076 INFO 35621 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2020-09-24 17:12:54.786 INFO 35621 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2020-09-24 17:12:54.797 INFO 35621 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'configurationPropertiesRebinder' has been autodetected for JMX exposure
2020-09-24 17:12:54.798 INFO 35621 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'environmentManager' has been autodetected for JMX exposure
2020-09-24 17:12:54.800 INFO 35621 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'refreshScope' has been autodetected for JMX exposure
2020-09-24 17:12:54.804 INFO 35621 --- [ 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]
2020-09-24 17:12:54.831 INFO 35621 --- [ 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]
2020-09-24 17:12:54.858 INFO 35621 --- [ 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=6e4ec20,type=ConfigurationPropertiesRebinder]
2020-09-24 17:12:54.876 INFO 35621 --- [ main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 0
2020-09-24 17:12:54.957 INFO 35621 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 50842 (http) with context path ''
2020-09-24 17:12:54.959 INFO 35621 --- [ main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 50842
2020-09-24 17:12:54.976 INFO 35621 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2020-09-24 17:12:55.051 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2020-09-24 17:12:55.407 INFO 35621 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2020-09-24 17:12:55.408 INFO 35621 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2020-09-24 17:12:55.603 INFO 35621 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2020-09-24 17:12:55.604 INFO 35621 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2020-09-24 17:12:55.887 INFO 35621 --- [ main] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration
2020-09-24 17:12:55.955 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Disable delta property : false
2020-09-24 17:12:55.955 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Single vip registry refresh property : null
2020-09-24 17:12:55.955 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Force full registry fetch : false
2020-09-24 17:12:55.955 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Application is null : false
2020-09-24 17:12:55.955 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Registered Applications size is zero : true
2020-09-24 17:12:55.955 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Application version is -1: true
2020-09-24 17:12:55.956 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Getting all instance registry info from the eureka server
2020-09-24 17:12:56.271 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : The response status is 200
2020-09-24 17:12:56.273 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Starting heartbeat executor: renew interval is: 30
2020-09-24 17:12:56.282 INFO 35621 --- [ main] c.n.discovery.InstanceInfoReplicator : InstanceInfoReplicator onDemand update allowed rate per min is 4
2020-09-24 17:12:56.291 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1600938776287 with initial instances count: 0
2020-09-24 17:12:56.301 INFO 35621 --- [ main] o.s.c.n.e.s.EurekaServiceRegistry : Registering application spring-cloud-eureka-client with eureka with status UP
2020-09-24 17:12:56.306 INFO 35621 --- [ main] com.netflix.discovery.DiscoveryClient : Saw local status change event StatusChangeEvent [timestamp=1600938776306, current=UP, previous=STARTING]
2020-09-24 17:12:56.366 INFO 35621 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_SPRING-CLOUD-EUREKA-CLIENT/192.168.31.3:spring-cloud-eureka-client:0: registering service...
2020-09-24 17:12:56.398 INFO 35621 --- [ main] c.t.e.EurekaClientApplication : Started EurekaClientApplication in 6.903 seconds (JVM running for 11.226)
2020-09-24 17:12:56.835 INFO 35621 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_SPRING-CLOUD-EUREKA-CLIENT/192.168.31.3:spring-cloud-eureka-client:0 - registration status: 204
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-feign</artifactId>
</dependency>
<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-thymeleaf</artifactId>
</dependency>
package com.thefirstwind.eurekaFeignClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
@SpringBootApplication
@EnableFeignClients
@Controller
public class EurekaFeignClientApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaFeignClientApplication.class, args);
}
@Autowired
private GreetingClient greetingClient;
@RequestMapping("/get-greeting")
public String greeting(Model model) {
model.addAttribute("greeting", greetingClient.greeting());
return "greeting-view";
}
}package com.thefirstwind.eurekaFeignClient;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
@FeignClient("spring-cloud-eureka-client")
public interface GreetingClient {
@RequestMapping("/greeting")
String greeting();
}<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Greeting Page</title>
</head>
<body>
<h2 th:text="${greeting}"/>
</body>
</html>spring:
application:
name: spring-cloud-eureka-feign-client
server:
port: 8080
eureka:
client:
serviceUrl:
defaultZone: ${EUREKA_URI:http://localhost:8761/eureka}@Autowired
private EurekaClient eurekaClient;
public void doRequest() {
Application application =
eurekaClient.getApplication("spring-cloud-eureka-client");
InstanceInfo instanceInfo = application.getInstances().get(0);
String hostname = instanceInfo.getHostName();
int port = instanceInfo.getPort();
// ...
}cd spring-cloud-eureka-feign-client
mvn spring-boot:run访问地址 http://localhost:8080/get-greeting
验证 注册中心 http://localhost:8761/
- feign 项目 通过 @FeignClient("spring-cloud-eureka-client") 查找 eureka客户端项目，并且发送请求
- https://medium.com/swlh/spring-cloud-service-discovery-with-eureka-16f32068e5c7
- https://medium.com/swlh/spring-cloud-high-availability-for-eureka-b5b7abcefb32