springcloud----服务熔断、降级、限流--之--Hystrix-监控中心

Netflix相关文档 ： https://cloud.spring.io/spring-cloud-static/spring-cloud-netflix/2.2.2.RELEASE/reference/html/

1、模块名 cloud-consumer-hystrix-dashboard9001

2、pml.xml

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

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

3、yml 配置文件

server:
  port: 9001

4、主启动

@SpringBootApplication
@EnableHystrixDashboard
public class HystrixDashBoardMain9001 {
    public static void main(String[] args){
        SpringApplication.run(HystrixDashBoardMain9001.class,args) ;
    }
}

5、测试

• 监控中心地址： http://127.0.0.1:9001/hystrix
• 指定监控的地址 ： http://127.0.0.1:8001/hystrix.stream
• 访问后才能参数流量

在需要监控的启动类 增加Bean

/**
 *  此配置是为了服务监控而配置，与服务容错本省无关，spring-cloud 升级后的坑
 *  ServletRegistrationBean 因为 spring boot 的默认路径不是 "/hystrix.stream"
 *  只要在自己的项目里配置下文的 servlet 就可以了
 * @return
 */
@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;
}