我已经通过链接:Unable to connect to Command Metric Stream for Hystrix Dashboard with Spring Cloud并尝试了一些选项,但还没有任何结果。我正在开发Spring Cloud Code + Hystrix + Turbine。
能告诉我这是什么问题吗?我正在使用Spring Boot v2.0.4.RELEASE
。
H YST日系dashboard application.Java
@EnableTurbine
@EnableHystrixDashboard
@SpringBootApplication
public class HystrixDashboardApplication {
public static void main(String[] args) {
SpringApplication.run(HystrixDashboardApplication.class, args);
}
}
pom.hml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<spring-cloud.version>Finchley.SR1</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-turbine</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
tollrate-billboard
应用程序具有以下代码TollrateBillboardApplication.java
@EnableCircuitBreaker
@SpringBootApplication
@EnableEurekaClient
public class TollrateBillboardApplication {
public static void main(String[] args) {
SpringApplication.run(TollrateBillboardApplication.class, args);
}
}
dashboard controller.Java
@Controller
public class DashboardController {
@LoadBalanced
@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder) {
return builder.build();
}
@Autowired
private RestTemplate restTemplate;
@HystrixCommand(fallbackMethod = "getTollRateBackup")
@RequestMapping("/dashboard")
public String GetTollRate(@RequestParam int stationId, Model m) {
TollRate tr = restTemplate.getForObject("http://pluralsight-toll-service/tollrate/" + stationId, TollRate.class);
System.out.println("stationId: " + stationId);
m.addAttribute("rate", tr.getCurrentRate());
return "dashboard";
}
public String getTollRateBackup(@RequestParam int stationId, Model m) {
System.out.println("Fallback operation called");
m.addAttribute("rate", "1.00");
return "dashboard";
}
}
bootstrap.properties
spring.application.name=pluralsight-tollrate-billboard
application.properties
server.port=8082
# eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka/
eureka.client.register-with-eureka=true
eureka.client.fetch-registry=true
#http://cloud.spring.io/spring-cloud-static/Finchley.RELEASE/single/spring-cloud.html#_environment_changes
management.endpoints.web.exposure.include=hystrix.stream
CURL命令结果:
curl "http://localhost:8085/clusters"
产量
[
{
"name": "PLURALSIGHT-FASTPASS-CONSOLE",
"link": "http://localhost:8085/turbine.stream?cluster=PLURALSIGHT-FASTPASS-CONSOLE"
},
{
"name": "PLURALSIGHT-TOLLRATE-BILLBOARD",
"link": "http://localhost:8085/turbine.stream?cluster=PLURALSIGHT-TOLLRATE-BILLBOARD"
}
]
EDIT-1 ::,我正在使用“hystrix-turbine”
@EnableTurbineStream
@SpringBootApplication
public class HystrixTurbineApplication {
public static void main(String[] args) {
SpringApplication.run(HystrixTurbineApplication.class, args);
}
}
现在,我收到以下错误:
2018-09-03 22:23:45.808 WARN 2820 --- [nio-8085-exec-5] ashboardConfiguration$ProxyStreamServlet : Failed opening connection to http://localhost:8085/turbine.stream?cluster=PLURALSIGHT-FASTPASS-CONSOLE : 404 : HTTP/1.1 404
2018-09-03 22:23:45.808 WARN 2820 --- [nio-8085-exec-2] ashboardConfiguration$ProxyStreamServlet : Failed opening connection to http://localhost:8085/turbine.stream?cluster=PLURALSIGHT-FASTPASS-CONSOLE : 404 : HTTP/1.1 404
@Sayali我尝试在我自己的系统中重新创建错误,并设法让它工作,这里有一些检查你可以做:
1)第1张屏幕截图中的网址不正确。 Hystrix仪表板中的流URL应为:
http://localhost:8085/turbine.stream?cluster=PLURALSIGHT-TOLLRATE-BILLBOARD
该URL应指向主类中具有@EnableTurbine
注释的仪表板应用程序的端口。
2)检查您是否收到了以下答复:
(使用你的浏览器)(这应该来自你使用@EnableCircuitBreaker
启用hystrix的应用程序)
如果你得到ping,那么至少你的hystrix流是可访问的。如果没有,检查你是否有:依赖的org.springframework.boot:spring-boot-starter-actuator
和
确保在主类中具有@EnableCircuitBreaker
的应用程序的application.properties文件中设置了以下属性:
management.endpoints.web.exposure.include= hystrix.stream, info, health
再次检查URL。
3)在移动到涡轮机流之前,请让涡轮机部分工作,所以到目前为止,您可以进行以下更改:
@EnableTurbine // instead of @EnableTurbineStream
@SpringBootApplication
public class HystrixTurbineApplication {
public static void main(String[] args) {
SpringApplication.run(HystrixTurbineApplication.class, args);
}
}
另外,要使用TurbineStream:
您可能希望让Hystrix命令将指标推送到Turbine。 Spring Cloud通过消息传递实现这一点。要在客户端上执行此操作,请为spring-cloud-netflix-hystrix-stream和您选择的spring-cloud-starter-stream- *添加依赖项。
参考:http://cloud.spring.io/spring-cloud-static/Finchley.SR1/single/spring-cloud.html#_turbine_stream
我希望这有帮助。请评论以帮助我知道这是否适合您。