Hystrix之Dashboard使用

Hystrix Dashboard是Hystrix的一个组件，Hystrix Dashboard提供一个断路器的监控面板，可以使我们更好的监控服务和集群的状态，仅仅使用Hystrix Dashboard只能监控到单个断路器的状态，实际开发中还需要结合Turbine使用。

 

1，基于SpringBoot的项目之pom.xml

<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/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>
    <groupId>com.qi.hystrix</groupId>
    <artifactId>dashboard</artifactId>
    <packaging>jar</packaging>
    <version>1.0</version>
    <name>dashboard</name>

    <!-- 配置版本常量 -->
    <properties>
        <jdk.version>1.8</jdk.version>
        <spring.cloud.version>2.0.2.RELEASE</spring.cloud.version>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.6.RELEASE</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.0.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
            <version>${spring.cloud.version}</version>
        </dependency>
        <!-- hystrix-dashboard -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
            <version>${spring.cloud.version}</version>
        </dependency>
        <!-- Spring Boot actuator服务监控与管理 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
            <version>2.0.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>build-info</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

 

2，基于actuator配置application.yml

server:
  port: 8080

info:
  head: head
  body: body
management:
  endpoints:
    web:
      exposure:
        #加载所有的端点，默认只加载了info、health
        include: '*'
  endpoint:
    health:
      show-details: always
    #可以关闭指定的端点
    shutdown:
      enabled: false

 

3，SpringBoot应用启动

 

package com.qi.hystrix;

import com.netflix.hystrix.contrib.javanica.aop.aspectj.HystrixCommandAspect;
import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
import org.springframework.context.annotation.Bean;

@SpringBootApplication
@EnableHystrixDashboard
public class AppHystrixDashboard extends SpringBootServletInitializer {
    public static void main(String[] args) {
        SpringApplication.run(AppHystrixDashboard.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(AppHystrixDashboard.class);
    }

    @Bean
    public ServletRegistrationBean hystrixMetricsStreamServlet() {
        return new ServletRegistrationBean(new HystrixMetricsStreamServlet(), "/hystrix.stream");
    }

    @Bean
    public HystrixCommandAspect hystrixCommandAspect() {
        return new HystrixCommandAspect();
    }
}

 

4，访问Hystrix Dashboard

浏览器输入http://localhost:8080/hystrix，在仪表盘主页面输入http://localhost:8080/hystrix.stream或http://localhost:8080/actuator/hystrix.stream，然后访问基于HystrixCommand实现的controller即可，图片来源与网上，有解释说明，在此借用一下