01.hystrix dashboard 一次只能监控一个服务实例，使用 turbine 可以汇集监控信息，将聚合后的信息提供给 hystrix dashboard 来集中展示和监控

02.新建 sp10-turbine 项目


03.pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.3.1.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>cn.tedu</groupId>
	<artifactId>sp10-turbine</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>sp10-turbine</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>1.8</java.version>
		<spring-cloud.version>Hoxton.SR12</spring-cloud.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-netflix-eureka-client</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>
			<exclusions>
				<exclusion>
					<groupId>org.junit.vintage</groupId>
					<artifactId>junit-vintage-engine</artifactId>
				</exclusion>
			</exclusions>
		</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>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

04.application.yml

  application:
    name: turbine
    
server:
  port: 5001
  
eureka:
  client:
    service-url:
      defaultZone: http://eureka1:2001/eureka,http://eureka2:2002/eureka
      
turbine:
  app-config: order-service
  cluster-name-expression: new String("default")

05.主程序
添加 @EnableTurbine 和 @EnableDiscoveryClient 注解

package cn.tedu.sp10;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.turbine.EnableTurbine;

@SpringBootApplication
@EnableDiscoveryClient
@EnableTurbine
public class Sp10TurbineApplication {

	public static void main(String[] args) {
		SpringApplication.run(Sp10TurbineApplication.class, args);
	}

}

06.访问测试
8201服务器产生监控数据:
http://localhost:8201/abc123
http://localhost:8201/

8202服务器产生监控数据:
http://localhost:8202/abc123
http://localhost:8202/

turbine 监控路径
http://localhost:5001/turbine.stream

在 hystrix dashboard 中填入turbine 监控路径，开启监控
http://localhost:4001/hystrix

turbine聚合了order-service两台服务器的hystrix监控信息