這次實踐項目須要兩個兩個,一個是eureka-server,另外一個是須要新建的項目service-hi-hystrix-dashboard,html
1.新建一個項目service-hi-hystrix-dashboardjava
build.gradle文件web
buildscript { ext { springBootVersion = '2.0.4.RELEASE' } repositories { mavenCentral() } dependencies { classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") } } apply plugin: 'java' apply plugin: 'eclipse' apply plugin: 'org.springframework.boot' apply plugin: 'io.spring.dependency-management' group = 'com.example' version = '0.0.1-SNAPSHOT' sourceCompatibility = 1.8 repositories { mavenCentral() } ext { springCloudVersion = 'Finchley.SR1' } dependencies { compile('org.springframework.boot:spring-boot-starter-actuator') #這個必須有,它能啓動metrics filter compile('org.springframework.cloud:spring-cloud-starter-netflix-eureka-client') compile('org.springframework.cloud:spring-cloud-starter-netflix-hystrix') compile('org.springframework.cloud:spring-cloud-starter-netflix-hystrix-dashboard') testCompile('org.springframework.boot:spring-boot-starter-test') } dependencyManagement { imports { mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}" } }
主方法:spring
package com.example.servicehihystrixdashboard; import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; import org.springframework.cloud.netflix.hystrix.EnableHystrix; import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; @EnableDiscoveryClient @RestController @EnableHystrix @EnableHystrixDashboard @SpringBootApplication public class ServiceHiHystrixDashboardApplication { public static void main(String[] args) { SpringApplication.run(ServiceHiHystrixDashboardApplication.class, args); } @Value("${server.port}") String port; @RequestMapping("/hi") @HystrixCommand(fallbackMethod = "hiError") public String home(@RequestParam String name) { return "hi "+name+",i am from port:" +port; } public String hiError(String name) { return "hi,"+name+",sorry,error!"; } }
application.yml文件:apache
server: port: 9294 spring: application: name: service-hi-hystrix-dashboard eureka: client: service-url: defaultZone: http://localhost:8791/eureka/ management: endpoints: web: exposure: include: hystrix.stream
此時依次啓動eureka-server項目和service-hi-hystrix-dashboard項目,啓動成功後,控制檯是這樣的:json
. ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v2.0.4.RELEASE) 2018-08-14 15:36:22.022 INFO 3449 --- [ main] e.s.ServiceHiHystrixDashboardApplication : No active profile set, falling back to default profiles: default 2018-08-14 15:36:22.041 INFO 3449 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@6bc407fd: startup date [Tue Aug 14 15:36:22 CST 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@7c7b252e 2018-08-14 15:36:22.839 INFO 3449 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=f7939dd6-e700-3887-bcd5-6cd87ef02579 2018-08-14 15:36:22.854 INFO 3449 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring 2018-08-14 15:36:23.033 INFO 3449 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$8065379a] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 2018-08-14 15:36:23.327 INFO 3449 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 9294 (http) 2018-08-14 15:36:23.345 INFO 3449 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat] 2018-08-14 15:36:23.345 INFO 3449 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.32 2018-08-14 15:36:23.348 INFO 3449 --- [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/hfguan/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.] 2018-08-14 15:36:23.438 INFO 3449 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext 2018-08-14 15:36:23.438 INFO 3449 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1397 ms 2018-08-14 15:36:23.700 WARN 3449 --- [ost-startStop-1] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources. 2018-08-14 15:36:23.701 INFO 3449 --- [ost-startStop-1] 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. 2018-08-14 15:36:23.707 INFO 3449 --- [ost-startStop-1] c.netflix.config.DynamicPropertyFactory : DynamicPropertyFactory is initialized with configuration sources: com.netflix.config.ConcurrentCompositeConfiguration@175eb86f 2018-08-14 15:36:24.374 INFO 3449 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*] 2018-08-14 15:36:24.374 INFO 3449 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'webMvcMetricsFilter' to: [/*] 2018-08-14 15:36:24.375 INFO 3449 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*] 2018-08-14 15:36:24.375 INFO 3449 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*] 2018-08-14 15:36:24.375 INFO 3449 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*] 2018-08-14 15:36:24.375 INFO 3449 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpTraceFilter' to: [/*] 2018-08-14 15:36:24.375 INFO 3449 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet proxyStreamServlet mapped to [/proxy.stream] 2018-08-14 15:36:24.376 INFO 3449 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/] 2018-08-14 15:36:24.377 INFO 3449 --- [ost-startStop-1] o.s.b.a.e.web.ServletEndpointRegistrar : Registered '/actuator/hystrix.stream' to hystrix.stream-actuator-endpoint 2018-08-14 15:36:24.462 INFO 3449 --- [ main] o.s.ui.freemarker.SpringTemplateLoader : SpringTemplateLoader for FreeMarker: using resource loader [org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@6bc407fd: startup date [Tue Aug 14 15:36:22 CST 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@7c7b252e] and template loader path [classpath:/templates/] 2018-08-14 15:36:24.462 INFO 3449 --- [ main] o.s.w.s.v.f.FreeMarkerConfigurer : ClassTemplateLoader for Spring macros added to FreeMarker configuration 2018-08-14 15:36:24.500 WARN 3449 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources. 2018-08-14 15:36:24.500 INFO 3449 --- [ 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. 2018-08-14 15:36:24.594 INFO 3449 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2018-08-14 15:36:24.809 INFO 3449 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@6bc407fd: startup date [Tue Aug 14 15:36:22 CST 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@7c7b252e 2018-08-14 15:36:24.859 INFO 3449 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/hi]}" onto public java.lang.String com.example.servicehihystrixdashboard.ServiceHiHystrixDashboardApplication.home(java.lang.String) 2018-08-14 15:36:24.860 INFO 3449 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/hystrix]}" onto public java.lang.String org.springframework.cloud.netflix.hystrix.dashboard.HystrixDashboardController.home(org.springframework.ui.Model,org.springframework.web.context.request.WebRequest) 2018-08-14 15:36:24.860 INFO 3449 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/hystrix/{path}]}" onto public java.lang.String org.springframework.cloud.netflix.hystrix.dashboard.HystrixDashboardController.monitor(java.lang.String,org.springframework.ui.Model,org.springframework.web.context.request.WebRequest) 2018-08-14 15:36:24.863 INFO 3449 --- [ 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) 2018-08-14 15:36:24.864 INFO 3449 --- [ 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) 2018-08-14 15:36:24.894 INFO 3449 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2018-08-14 15:36:24.894 INFO 3449 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2018-08-14 15:36:25.377 INFO 3449 --- [ main] o.s.b.a.e.web.EndpointLinksResolver : Exposing 1 endpoint(s) beneath base path '/actuator' 2018-08-14 15:36:25.386 INFO 3449 --- [ 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) 2018-08-14 15:36:25.434 INFO 3449 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup 2018-08-14 15:36:25.442 INFO 3449 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'environmentManager' has been autodetected for JMX exposure 2018-08-14 15:36:25.444 INFO 3449 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'configurationPropertiesRebinder' has been autodetected for JMX exposure 2018-08-14 15:36:25.444 INFO 3449 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'refreshScope' has been autodetected for JMX exposure 2018-08-14 15:36:25.447 INFO 3449 --- [ 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] 2018-08-14 15:36:25.454 INFO 3449 --- [ 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] 2018-08-14 15:36:25.462 INFO 3449 --- [ 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=6bc407fd,type=ConfigurationPropertiesRebinder] 2018-08-14 15:36:25.471 INFO 3449 --- [ main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 0 2018-08-14 15:36:25.482 INFO 3449 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING 2018-08-14 15:36:25.512 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1 2018-08-14 15:36:25.703 INFO 3449 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson 2018-08-14 15:36:25.703 INFO 3449 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson 2018-08-14 15:36:25.803 INFO 3449 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml 2018-08-14 15:36:25.803 INFO 3449 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml 2018-08-14 15:36:25.973 INFO 3449 --- [ main] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration 2018-08-14 15:36:25.989 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Disable delta property : false 2018-08-14 15:36:25.989 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Single vip registry refresh property : null 2018-08-14 15:36:25.989 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Force full registry fetch : false 2018-08-14 15:36:25.989 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Application is null : false 2018-08-14 15:36:25.989 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Registered Applications size is zero : true 2018-08-14 15:36:25.989 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Application version is -1: true 2018-08-14 15:36:25.989 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Getting all instance registry info from the eureka server 2018-08-14 15:36:26.162 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : The response status is 200 2018-08-14 15:36:26.165 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Starting heartbeat executor: renew interval is: 30 2018-08-14 15:36:26.166 INFO 3449 --- [ main] c.n.discovery.InstanceInfoReplicator : InstanceInfoReplicator onDemand update allowed rate per min is 4 2018-08-14 15:36:26.170 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Discovery Client initialized at timestamp 1534232186169 with initial instances count: 1 2018-08-14 15:36:26.174 INFO 3449 --- [ main] o.s.c.n.e.s.EurekaServiceRegistry : Registering application service-hi-hystrix-dashboard with eureka with status UP 2018-08-14 15:36:26.174 INFO 3449 --- [ main] com.netflix.discovery.DiscoveryClient : Saw local status change event StatusChangeEvent [timestamp=1534232186174, current=UP, previous=STARTING] 2018-08-14 15:36:26.176 INFO 3449 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_SERVICE-HI-HYSTRIX-DASHBOARD/10.207.21.172:service-hi-hystrix-dashboard:9294: registering service... 2018-08-14 15:36:26.207 INFO 3449 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_SERVICE-HI-HYSTRIX-DASHBOARD/10.207.21.172:service-hi-hystrix-dashboard:9294 - registration status: 204 2018-08-14 15:36:26.230 INFO 3449 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 9294 (http) with context path '' 2018-08-14 15:36:26.232 INFO 3449 --- [ main] .s.c.n.e.s.EurekaAutoServiceRegistration : Updating port to 9294 2018-08-14 15:36:26.242 INFO 3449 --- [ main] e.s.ServiceHiHystrixDashboardApplication : Started ServiceHiHystrixDashboardApplication in 5.174 seconds (JVM running for 5.787) 2018-08-14 15:36:28.042 INFO 3449 --- [nio-9294-exec-1] ashboardConfiguration$ProxyStreamServlet : Proxy opening connection to: http://localhost:9294/actuator/hystrix.stream 2018-08-14 15:36:28.042 INFO 3449 --- [nio-9294-exec-2] ashboardConfiguration$ProxyStreamServlet : Proxy opening connection to: http://localhost:9294/actuator/hystrix.stream 2018-08-14 15:36:37.799 INFO 3449 --- [nio-9294-exec-6] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring FrameworkServlet 'dispatcherServlet' 2018-08-14 15:36:37.799 INFO 3449 --- [nio-9294-exec-6] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started 2018-08-14 15:36:37.819 INFO 3449 --- [nio-9294-exec-6] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 20 ms
訪問一下http://loclahost:9294/hi?12352tomcat
訪問 http://localhost:9294/actuator/hystrix.streamapp
接下來訪問http://localhost:9294/hystrixeclipse
點擊monitor streammaven