15、Feign整合断路器监控Hystrix Dashboard

ribbon可以整合整合断路器监控hystrix dashboard，feign也不能少, 本篇讲解一下feign如何整合断路器监控hystrix dashboard。本篇主要整合sc-eureka-client-consumer-feign-hystrix项目和sc-hystrix-dashboard项目。

 

1、 新建项目sc-feign-hystrix-dashboard，对应的pom.xml文件如下

 

<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-feign-hystrix-dashboard</artifactid>

  <version>0.0.1-snapshot</version>

  <packaging>jar</packaging>

 

  <name>sc-feign-hystrix-dashboard</name>

  <url>http://maven.apache.org</url>

 

<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>

 

<!-- 说明是一个 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>

 

<!-- <dependency>

        <groupid>org.springframework.cloud</groupid>

        <artifactid>spring-cloud-starter-feign</artifactid>

    <version>1.4.5.release</version>

   </dependency> -->

 

<dependency>

<groupid>org.springframework.cloud</groupid>

<artifactid>spring-cloud-starter-openfeign</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.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.boot</groupid>

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

</dependency>

 

</dependencies>

</project>

 

 

 

说明：可以看出这个pom.xml文件是sc-eureka-client-consumer-feign-hystrix项目和sc-hystrix-dashboard项目的并集。

 

2、 新建spring root 启动类feigndashboardapplication.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.dashboard.enablehystrixdashboard;

import org.springframework.cloud.openfeign.enablefeignclients;

 

@springbootapplication

@enableeurekaclient

@enablefeignclients

@enablehystrixdashboard

public class feigndashboardapplication {

 

public static void main(string[] args) {

springapplication.run(feigndashboardapplication.class, args);

}

 

}

 

 

这个启动类的注解是sc-eureka-client-consumer-feign-hystrix项目和sc-hystrix-dashboard项目的并集

3、 其他项目文件说明如下，具体见源码

 

 

 

 

4、 启动注册中心sc-eureka-server和服务提供者sc-eureka-client-provider，并确保启动成功

 

5、 启动sc-feign-hystrix-dashboard项目，并验证是否启动成功

方式一：访问注册中心查看sc-feign-hystrix-dashboard项目配置的服务名是否注册成功

 

 

 

 

方式二：访问仪表盘dashboard对的地址http://127.0.0.1:5800/hystrix

 

 

 

6、 使用hystrix dashboard查看服务情况

在下图标注处输入 

 

 

然后点击monitor stream按钮

 

 

 

 

7、 使用postman访问任意服务接口，以访问获取用户信息接口为例

http://127.0.0.1:5800/feign/user/getuser/3

 

 

 

尽量多访问几次，然后查看仪表盘bashboard监控后台，发现之前一直处于loading的界面发生了变化，如下图，图中单元具体含义可以访问网站

https://github.com/netflix-skunkworks/hystrix-dashboard/wiki

 

 

 

 

 

访问也出现大量数据，这些数据就是对服务的监控数据。