Hystrix-Dashboard-可视化监控中心

一）在项目中使用Dashboard（仪表盘）

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。,说白了。就是通过配置Hystrix Dashboard,我们可以通过浏览页面看运行情况

1.在项目中加入坐标

1）Hystrix
2）actutor
3）dashboard

2.pom文件

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.sxt</groupId>
    <artifactId>24-hystrix-threadpool-dashboard</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>24-hystrix-threadpool-dashboard</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.SR2</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

<!--        使用可视化界面需要添加的坐标-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
        </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>
<!--        使用可视化界面需要添加的坐标-->

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </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>

2.启动进行访问

启动类需要添加两个重要的注解
1.@EnableHystrix:开启Hystrix
2.@EnableHystrixDashboard:开启Dashboard

@SpringBootApplication
@EnableEurekaClient
@EnableCircuitBreaker
@EnableHystrix  //启动Hystrix
@EnableHystrixDashboard //启动可视化数据Dashboard 
public class Application
{

    public static void main(String[] args)
    {
        SpringApplication.run(Application.class, args);
    }
    
    
     /**
     * 配置路径映射，获取JSON格式的请求数据
     * @return
     */
    @Bean
    public ServletRegistrationBean hystrixMetricsStreamServlet() {
        ServletRegistrationBean registration = new ServletRegistrationBean(new HystrixMetricsStreamServlet());
        registration.addUrlMappings("/hystrix.stream");
        return registration;
    }
}

使用浏览器访问数据
调用的服务之后可以查看到服务请求结果

3.在可视化页面内查看JSON数据

图解图形页面的列表

最后

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