一、说明

上一篇文章我们学习了 Hystrix Dashboard，用他来做数据监控，可以在页面看到加了 @HystrixCommand 注解的接口被访问的次数，成功和失败等状态。如果 client01 配置了 Hystrix Dashboard ，那么这个页面是通过访问 http://client01:8763/hystrix 打开的

然后输入 http://client01:8763/actuator/hystrix.stream 进入监控页面，可以在这个页面监控 client01 的接口情况。

但是，如果现在 client02 也配置了 Hystrix Dashboard ，那么你只能再打开一个监控页面才可以看到 client02 的接口情况。
有没有一种东西可以同时监控所有配置了 Hystrix Dashboard 的 client 呢？
有。那就是 Turbine 。你只需要在其中一个 client ，比如 client01 中配置 Turbine ，在配置文件里指定要监控哪些配置了 Hystrix Dashboard 的 client ，包括 client01 本身，就可以开始监控了。
接下来我们新建一个 turbine server 。

二、添加依赖

        <!-- trubine -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-turbine</artifactId>
        </dependency>

完整 pom 如下

<?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 http://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>2.0.3.RELEASE</version>
        <relativePath/>
    </parent>
    <groupId>com.dhsg.sc</groupId>
    <artifactId>turbine-server</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>turbine-server</name>
    <description>turbine-server</description>

    <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.RELEASE</spring-cloud.version>
    </properties>

    <dependencies>
        <!-- eureka client -->
        <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>

        <!-- actuator -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

        <!-- hystrix -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
        </dependency>

        <!-- trubine -->
        <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>

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

</project>

三、在启动类添加注解 @EnableTurbine

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.hystrix.EnableHystrix;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
import org.springframework.cloud.netflix.turbine.EnableTurbine;

@SpringBootApplication
@EnableEurekaClient
@EnableTurbine
@EnableHystrix
@EnableHystrixDashboard
public class TurbineServerApplication {

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

}

四、修改配置文件

management:
  endpoints:
    web:
      exposure:
        include: "*"
      # Turbine 相关配置
      cors:
        allowed-origins: "*"
        allowed-methods: "*"
# Turbine 相关配置
turbine:
  app-config: client01,eureka-client
  aggregator:
    clusterConfig: default
  clusterNameExpression: new String("default")
  combine-host: true
  instanceUrlSuffix:
    default: actuator/hystrix.stream

完整配置文件如下

server:
  port: 8765

spring:
  application:
    name: turbine-server

management:
  endpoints:
    web:
      # Turbine 相关配置
      cors:
        allowed-origins: "*"
        allowed-methods: "*"

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8761/eureka/
  # 为了在服务注册中心里显示实际的 IP 地址，需添加下面的配置
  instance:
    instance-id: ${spring.cloud.client.ip-address}:${server.port}
    prefer-ip-address: true

# Turbine 相关配置
turbine:
  app-config: client01,eureka-client
  aggregator:
    clusterConfig: default
  clusterNameExpression: new String("default")
  combine-host: true
  instanceUrlSuffix:
    default: actuator/hystrix.stream