Spring--Hystrix仪表盘Unable to connect to Command Metric Stream

Unable to connect to Command Metric Stream 这个是错误是链接不上，错误原因可能是缺少jar包或者没有Enable相关服务。

针对ribbon实现断路由监控

1.则pom中需要加入以下jar包

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

2.boot启动程序启动下面标签对应的服务

@EnableHystrix
@EnableHystrixDashboard

3.对应的service上肯定要加上断路由设定的

@HystrixCommand(fallbackMethod = "hiError")

针对fegin的实现断路由监控

因为fegin中本身自带断路器的，所以跟ribbon的处理稍有不同

1.则pom中需要加入以下jar包，本身实现断路处理不需要引入spring-cloud-starter-hystrix这个jar就可以实现，但是要加入监控则还是需要引入下面3个jar包

 
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<span style="font-size:14px;"><dependency>  
            <groupId>org.springframework.cloud</groupId>  
            <artifactId>spring-cloud-starter-hystrix</artifactId>  
        </dependency>  
        <dependency>  
            <groupId>org.springframework.boot</groupId>  
            <artifactId>spring-boot-starter-actuator</artifactId>  
        </dependency>  
        <dependency>  
            <groupId>org.springframework.cloud</groupId>  
            <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>  
        </dependency></span>  

2.boot启动程序启动下面标签对应的服务（一定不能少@EnableCircuitBreaker，刚开始就是少这个报的unable to connect错误）

@EnableHystrixDashboard
@EnableCircuitBreaker

3.对应的service上肯定要加上断路由设定的

@FeignClient(value = "service-hi" ,fallback = SchedualServiceHiHystric.class)
public interface SchedualServiceHi {
    @GetMapping("/hi")
    String sayHiFromClientOne(@RequestParam(value = "name") String name) ;
}

blues_ygw

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Spring--Hystrix仪表盘Unable to connect to Command Metric Stream

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