Spring Cloud 2.x系列之Feign整合断路器监控Hystrix Dashboard

2022-06-30 16:33:36 浏览数 (1)

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【Spring Cloud 2.x系列之Feign整合断路器Hystrix】和sc-hystrix-dashboard项目【Spring Cloud 2.x系列之如何使用断路器监控Hystrix Dashboard】。

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

代码语言：javascript复制
<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/4.0.0http://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【Spring Cloud 2.x系列之Feign整合断路器Hystrix】和sc-hystrix-dashboard项目【Spring Cloud 2.x系列之如何使用断路器监控Hystrix Dashboard】的并集。

2、 新建spring boot 启动类FeignDashboardApplication.java

代码语言：javascript复制
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http://127.0.0.1:5800/hystrix.stream

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http://127.0.0.1:5800/hystrix.stream也出现大量数据，这些数据就是对微服务的监控数据。

其他接口的监控情况可以自行访问，然后观察断路器监控Hystrix Dashboard的后台

源码：

代码语言：javascript复制
https://gitee.com/hjj520/spring-cloud-2.x
http springcloud spring xml

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