14、Ribbon整合斷路器監控Hystrix Dashboard

上一篇只是大概介紹了一下斷路器Hystrix Dashboard監控，如何使用Hystrix Dashboard監控微服務的狀態呢？這篇看看Ribbon如何整合斷路器監控Hystrix Dashboard。今天的項目主要整合sc-eureka-client-consumer-ribbon-hystrix項目和sc-hystrix-dashboard項目

1、 新建項目sc-ribbon-hystrix-dashboard，對應的pom.xml文件

<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>

  <groupId>spring-cloud</groupId>

  <artifactId>sc-ribbon-hystrix-dashboard</artifactId>

  <version>0.0.1-SNAPSHOT</version>

  <packaging>jar</packaging>

  <parent>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

<version>2.0.4.RELEASE</version>

</parent>

<dependencyManagement>

<dependencies>

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-dependencies</artifactId>

<version>Finchley.RELEASE</version>

<type>pom</type>

<scope>import</scope>

</dependency>

</dependencies>

</dependencyManagement>

<properties>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

<maven.compiler.source>1.8</maven.compiler.source>

<maven.compiler.target>1.8</maven.compiler.target>

</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-ribbon</artifactId>

    <version>1.4.5.RELEASE</version>

</dependency> -->

<dependency>

<groupId>org.springframework.cloud</groupId>

<artifactId>spring-cloud-starter-netflix-ribbon</artifactId>

</dependency>

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-web</artifactId>

</dependency>

<!--

<dependency>

    <groupId>org.springframework.cloud</groupId>

    <artifactId>spring-cloud-starter-hystrix</artifactId>

    <version>1.4.5.RELEASE</version>

</dependency> -->

<dependency>

    <groupId>org.springframework.cloud</groupId>

    <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>

</dependency>

<!-- <dependency>

    <groupId>org.springframework.cloud</groupId>

    <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>

    <version>1.4.5.RELEASE</version>

</dependency> -->

<dependency>

    <groupId>org.springframework.cloud</groupId>

    <artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>

</dependency>

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-actuator</artifactId>

</dependency>

</dependencies>

</project>

可以看到這個pom.xml文件是sc-eureka-client-consumer-ribbon-hstrix項目和sc-hystrix-dashboard項目的pom.xml的並集

2、 新建spring boot 啟動類HystrixDashboardApplication.java

package sc.consumer;

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;

@SpringBootApplication

@EnableEurekaClient

@EnableHystrix

@EnableHystrixDashboard

public class HystrixDashboardApplication {

public static void main(String[] args) {

SpringApplication.run(HystrixDashboardApplication.class, args);

}

}

可以看到這個啟動類的註解也是sc-eureka-client-consumer-ribbon-hstrix項目和sc-hystrix-dashboard項目的啟動類的並集

3、 其他的java類就不多說了，項目介面如下

4、 分別啟動配置中心和sc-eureka-server和服務提供者sc-eureka-client-provider

5、 啟動項目sc-ribbon-hystrix-dashboard

方式一：http://127.0.0.1:5600/hystrix驗證是否啟動成功

方式二：訪問http://127.0.0.1:5600/hystrix.stream

這個是訪問DashboardServletConfig.java這個servlet對應的地址

      上篇說了一下下圖這段英文的大概意思

6、 演示一下單應用模式下的斷路器監控Hystrix Dashboard

在url里輸入：http://127.0.0.1:5600/hystrix.stream（IP和埠對應服務消費者的IP和埠）

然後點擊Monitor Stream按鈕

7、 使用postman訪問任何介面，以獲取用戶列表為例（http://127.0.0.1:5600/cli/user/listUser），多訪問幾次在查看對應的監控界面

發現監控界面的圖出現了動態變化，這個就是對服務調用的監控。圖中相關單元的含義可以查看：

https://github.com/Netflix-Skunkworks/hystrix-dashboard/wiki

http://127.0.0.1:5600/hystrix.stream對應的界面也出現了大量數據，這個也是對服務調用監控的數據。

其他介面也自行測試。