SpringCloud教程 | 第6篇:服务监控豪猪（hystrix-dashboard）配置

一、Hystrix Dashboard简介

在微服务架构中为例保证程序的可用性，防止程序出错导致网络阻塞，出现了断路器模型。断路器的状况反应了一个程序的可用性和健壮性，它是一个重要指标。Hystrix Dashboard是作为断路器状态的一个组件，提供了数据监控和友好的图形化界面。

二、创建Module->microservicecloud-consumer-hystrix-dashboard

创建前请先创建 microservicecloud-provider-dept-hystrix 参考（SpringCloud教程 | 第N篇:断路器（Hystrix））

2.1 豪猪 POM.xml配置

<?xml version="1.0" encoding="UTF-8"?>

<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">
    <parent>
        <artifactId>mall</artifactId>
        <groupId>com.linjia</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>microservicecloud-consumer-hystrix-dashboard</artifactId>

    <name>microservicecloud-consumer-hystrix-dashboard</name>
    <!-- FIXME change it to the project's website -->
    <url>http://www.example.com</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.linjia</groupId>
            <artifactId>microservicecloud-api</artifactId>
            <version>${project.version}</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- hystrix和 hystrix-dashboard相关 -->
        <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>
        <!-- Ribbon相关   Ribbon与zookeeper区别，zookeeper 高一致性，ribbon 高可用-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-ribbon</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>

        <!-- 修改后立即生效，热部署 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>springloaded</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
        <!-- web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

    </dependencies>

    <build>
        <finalName>${name}</finalName>
    </build>
</project>

2.2 豪猪 yml配置

server:
  port: 9001


#  provider 中pom 中添加
#  <!-- actuator监控信息完善 -->
#            <dependency>
#                <groupId>org.springframework.boot</groupId>
#                <artifactId>spring-boot-starter-actuator</artifactId>
#            </dependency>


#http://localhost:9001/hystrix 访问

2.3 豪猪启动类

package com.linjia.springcloud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;

@SpringBootApplication
@EnableHystrixDashboard  //启动豪猪
public class DashBoard_Application
{
	public static void main(String[] args)
	{
		SpringApplication.run(DashBoard_Application.class, args);
	}
}

启动项目：启动注册中心eureka,

启动 microservicecloud-provider-dept-hystrix（注意修改POM监控配置）

启动 microservicecloud-consumer-hystrix-dashboard

#  启动项目后访问
#  第一步：http://localhost:8002/dept/get/1
#  第二步：http://localhost:8002/hystrix.stream
#  第三步： 启动microservicecloud-consumer-hystrix-dashboard
#  第四步：http://localhost:9001/hystrix

配置 ：http://localhost:9001/hystrix  内容

查看结果：

实心圆：共有两种含义，它通过颜色的变化代表了实例的健康程度，他的健康度从绿色<黄色<橙色<红色递减；

圆的大小变化：流量越大改实心圆就越大；

SpringCloud教程 | 第6篇:服务监控 豪猪（hystrix-dashboard）配置