10.Spring-Cloud-Hystrix之熔断监控Hystrix Dashboard单个应用

SpringCloud完美的整合Hystrix-dashboard，Hystrix-dashboard是一款针对Hystrix进行实时监控的工具，通过Hystrix Dashboard我们可以在直观地看到各Hystrix Command的请求响应时间, 请求成功率等数据。可以实时反馈信息帮助我们快速发现系统中，但是只使用Hystrix Dashboard的话, 你只能看到单个应用内的服务信息。

在上一个项目上重构地址

1.pom.xml(必须包)

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

<!--引入hystrix熔断器 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
</dependency>
<!--引入hystrix dashboard(仪表盘)-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>
</dependency>

2.启动类

package com.niugang;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.web.client.RestTemplate;

/**
 * 负责服务的发现与消费
 *
 * @author niugang
 *
 */
@SpringBootApplication
@EnableDiscoveryClient
@EnableCircuitBreaker
@EnableHystrixDashboard //启动仪表盘

/*
 * @SpringCloudApplication
 * 包含了
 * @SpringBootApplication
 * @EnableDiscoveryClient
 * @EnableCircuitBreaker
 * 着三个注解
 */
@ComponentScan
public class Application {
    //负载均衡
@LoadBalanced
@Bean
public RestTemplate restTemplate() {
return new RestTemplate();
}

public static void main(String[] args) {

SpringApplication.run(Application.class, args);
}
}

3.访问

启动工程后访问 http://localhost:9002/hystrix，看到如下