SpringCloud 熔断器仪表盘监控

 Feign和Ribbon使用熔断器仪表盘监控依赖

    org.springframework.cloud
    spring-cloud-starter-netflix-hystrix-dashboard

在application中增加@EnableHystrixDashboard注解 开启熔断器仪表盘监控 （feign）

package com.lxq.hello.spring.cloud.web.admin.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;

/**
 * @Author Lxq
 * @Date 2020/3/29 13:54
 * @Version 1.0
 */
@EnableHystrixDashboard
@EnableDiscoveryClient
@EnableFeignClients
@SpringBootApplication
public class WebAdminFeignApplication {
    public static void main(String[] args) {
        SpringApplication.run(WebAdminFeignApplication.class, args);
    }
}

 创建 hystrix.stream 的 Servlet 配置
Spring Boot 2.x 版本开启 Hystrix Dashboard 与 Spring Boot 1.x 的方式略有不同，需要增加一个 HystrixMetricsStreamServlet 的配置
创建config文件夹在其文件夹下创建HystrixDashboardConfiguration 类(配置类)
 

package com.lxq.hello.spring.cloud.web.admin.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;

/**
 * @Author Lxq
 * @Date 2020/3/29 14:27
 * @Version 1.0
 */
@Configuration
public class HystrixDashboardConfiguration {

    @Bean
    public ServletRegistrationBean getServlet(){
        HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
        registrationBean.setLoadOnStartup(1);  //开机自启(加载顺序)
        registrationBean.addUrlMappings("/hystrix.stream");   //配置servlet的访问路径
        registrationBean.setName("HystrixMetricsStreamServlet");  //servlet的名称
        return registrationBean;
    }

}

测试
访问http://localhost:8765/hystrix 

输入 http://localhost:8765/hystrix.stream