Hystrix: Dashboard流监控
接上两张服务熔断
开始搭建Dashboard流监控
pom依赖
<?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>springcloud</artifactId><groupId>com.kuang</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>springcloud-consumer-hystrix-dashboard</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target></properties><!-- 消费者：实体类+web 不需要连接数据库，跟前端打交道的 --><dependencies><!-- Hystrix依赖 --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-hystrix</artifactId><version>1.4.6.RELEASE</version></dependency><!-- Hystrix依赖 --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-hystrix-dashboard</artifactId><version>1.4.6.RELEASE</version></dependency><!-- Ribbon 集成 --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-ribbon</artifactId><version>1.4.6.RELEASE</version></dependency><!-- Eureka --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka</artifactId><version>1.4.6.RELEASE</version></dependency><dependency><groupId>com.kuang</groupId><artifactId>springcloud-api</artifactId><version>1.0-SNAPSHOT</version></dependency><!-- web 支持 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- 热部署 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId></dependency></dependencies></project><!-- Hystrix依赖 --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-hystrix</artifactId><version>1.4.6.RELEASE</version> </dependency><!-- Hystrix依赖 --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-hystrix-dashboard</artifactId><version>1.4.6.RELEASE</version> </dependency>
主启动类
package com.kuang.springcloud;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;@SpringBootApplication
@EnableHystrixDashboard//开启
public class DeptConsumerDashboard_9001 {public static void main(String[] args) {SpringApplication.run(DeptConsumerDashboard_9001.class,args);}
}
启动
访问http://localhost:9001/hystrix
启动集群7001
在8001提供者里加个依赖
<!-- Hystrix依赖 --> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-hystrix</artifactId><version>1.4.6.RELEASE</version> </dependency>
在熔断里用这个监控才有效
主启动类里加一个bean放入IOC容器里
package com.kuang.springcloud;import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.Bean;@SpringBootApplication
@EnableEurekaClient //在服务启动后自动注册到 eureka服务端
@EnableDiscoveryClient//服务发现~
@EnableCircuitBreaker//添加对熔断的支持 ,开启断路器
public class DeptApplicationProviderHystrix_8001 {public static void main(String[] args) {SpringApplication.run(DeptApplicationProviderHystrix_8001.class,args);}//增加一个Servlet,配合我们的监控使用@Beanpublic ServletRegistrationBean hystrixMetricsStreamServlet(){ServletRegistrationBean registrationBean = new ServletRegistrationBean(new HystrixMetricsStreamServlet());registrationBean.addUrlMappings("/actuator/hystrix.stream");//添加映射路径return registrationBean;}}
服务熔断机制