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  • Spring Cloud(Dalston.SR5)--Hystrix 监控

    在服务调用者加入 Actuator ,可以对服务调用者的健康情况进行实时监控,例如,断路器是否打开、当前负载情况等。

    • 服务调用者

      需要增加 actuator依赖, 修改 POM.xml 中增加以下依赖项如下:

      <dependency>

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

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

      </dependency>

         

    • 创建监控项目

      创建 hystrix-dashboard 项目,增加相关依赖 hystrix 和 hystrix-dashboard,修改 POM.xml 中增加以下依赖项:

      <?xmlversion="1.0"encoding="UTF-8"?>

      <projectxmlns="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>org.lixue.hystrix</groupId>

      <artifactId>hystrix-dashboard</artifactId>

      <version>0.0.1-SNAPSHOT</version>

      <packaging>jar</packaging>

         

      <name>hystrix-dashboard</name>

      <description>DemoprojectforSpringBoot</description>

         

      <parent>

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

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

      <version>1.5.12.RELEASE</version>

      <relativePath/><!--lookupparentfromrepository-->

      </parent>

         

      <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>Dalston.SR5</spring-cloud.version>

      </properties>

         

      <dependencies>

      <dependency>

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

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

      </dependency>

      <dependency>

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

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

      </dependency>

      <dependency>

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

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

         

    • 修改启动类

      使用注解 @EnableHystrixDashboard 开启 Hystrix Dashboard支持

      package org.lixue.hystrix;

         

      import org.springframework.boot.SpringApplication;

      import org.springframework.boot.autoconfigure.SpringBootApplication;

      import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;

         

      @SpringBootApplication

      @EnableHystrixDashboard

      public class HystrixDashboardApplication{

         

      public static void main(String[]args){

      SpringApplication.run(HystrixDashboardApplication.class,args);

      }

      }

         

    • 增加配置

      修改 src/main/resources/application.yml 配置文件,增加相关配置:

      #配置应用名称

      spring:

      application:

      name:hystrix-dashboard

      #服务端口

      server:

      port:10002

         

    • 测试验证

      启动项目,访问 http://localhost:10002/hystrix 可以打开 Hystrix 监控主页(不支持 IE 和 Edge),输入需要监控的站点 http://localhost:8077/hystrix.stream 点击 Monitor Stream 可以打开监控页面,这时通过服务调用者来调用服务,可以看到监控数据变化:

         

      监控数据的说明可以参考官方提供的说明如下:

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  • 原文地址:https://www.cnblogs.com/li3807/p/8916838.html
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