1四、Ribbon整合斷路器監控Hystrix Dashboard

公衆號： java樂園

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

一、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>

能夠看到這個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

二、新建spring boot 啓動類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);
        
    }

}

能夠看到這個啓動類的註解也是sc-eureka-client-consumer-ribbon-hstrix項目和sc-hystrix-dashboard項目的啓動類的並集

三、其餘的java類就很少說了，項目接口以下

四、分別啓動配置中心和sc-eureka-server和服務提供者sc-eureka-client-provider

五、啓動項目sc-ribbon-hystrix-dashboard
方式一：http://127.0.0.1:5600/hystrix驗證是否啓動成功

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

六、演示一下單應用模式下的斷路器監控Hystrix Dashboard
在url裏輸入：http://127.0.0.1:5600/hystrix.stream（IP和端口對應服務消費者的IP和端口）

而後點擊Monitor Stream按鈕

七、使用postman訪問任何接口，以獲取用戶列表爲例（http://127.0.0.1:5600/cli/user/listUser），多訪問幾回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能夠查看：
https://github.com/Netflix-Sk...

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。

其餘接口也自行測試。