Unable to connect to Command Metric Stream的解决办法（适合解决各个版本依懒）

1.在运行的Application类里面加入以下方法

package com.roncoo.shop;

import org.springframework.beans.factory.annotation.Value;
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.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.feign.EnableFeignClients;
import org.springframework.cloud.netflix.hystrix.EnableHystrix;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;

@SpringBootApplication
@EnableEurekaClient
@RestController
@EnableHystrix
@EnableHystrixDashboard
@EnableCircuitBreaker
public class SayHelloServiceApplication {
   
	public static void main(String[] args) {
        SpringApplication.run(SayHelloServiceApplication.class, args);
    }

    @Value("${server.port}")
    String port;
    @RequestMapping("/sayHello")
    @HystrixCommand(fallbackMethod = "sayHelloFallback")
    public String home(@RequestParam String name) {
        return "hello, " + name + " from port:" +port;
    }
    
    public String sayHelloFallback(String name) {
		return "error, " + name;
	}
    
    @Bean
    public ServletRegistrationBean getServlet(){
        HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
        registrationBean.setLoadOnStartup(1);
        registrationBean.addUrlMappings("/actuator/hystrix.stream");
        registrationBean.setName("HystrixMetricsStreamServlet");
        return registrationBean;
    }
}

2.正常访问输入localhost:8762/hystrix.stream，2000，title这些值，这里改为输入

localhost:8762/actuator/hystrix.stream，2000，title，其他内容不变

3.单独访问地址则可以出现Hystrix Stream页面，访问有延时，请稍等或者刷新