場景

SpringCloud-使用熔斷器防止服務雪崩-Ribbon和Feign方式(附代碼下載)：

https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/102616697

在上面已經實作使用Ribbon和Feign的方式使用熔斷器，但是如果服務一直在被熔斷需要怎么解決，

所以這里使用熔斷儀表盤監控熔斷，

這里使用feign的方式使用監控，

注：

博客：
https://blog.csdn.net/badao_liumang_qizhi
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實作

在pom.xml中加入依賴

<dependency>    <groupId>org.springframework.cloud</groupId>    <artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId></dependency>

然后在Application中添加注解@EnableHystrixDashboard

package com.badao.hello.spring.cloud.web.feign;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.client.discovery.EnableDiscoveryClient;import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;import org.springframework.cloud.openfeign.EnableFeignClients;@SpringBootApplication@EnableDiscoveryClient@EnableFeignClients@EnableHystrixDashboardpublic class WebAdminFeignApplication {    public static void main(String[] args) {        SpringApplication.run(WebAdminFeignApplication.class, args);    }}

創建hystrix.stream的Servlet配置

在包下新建config包，在config包下新建config配置類

package com.badao.hello.spring.cloud.web.feign.config;import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;import org.springframework.boot.web.servlet.ServletRegistrationBean;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;@Configurationpublic class HystrixDashboardConfiguration {    @Bean    public ServletRegistrationBean getServlet() {        HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();        ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);        registrationBean.setLoadOnStartup(1);        registrationBean.addUrlMappings("/hystrix.stream");        registrationBean.setName("HystrixMetricsStreamServlet");        return registrationBean;    }}