解决Hystrix Dashboard出现的诸多问题【如访问hystrix.stream出现Whitelabel error page, 访问hystrix出现 Unable to connect 】

解决Hystrix Dashboard出现的诸多问题

问题1：访问http://localhost:8764/hystrix.stream

出现Whitelabel error page错误

问题2：在浏览器访问的正确网址是：http://localhost:8764/hystrix:

但是初入监控网址之后出现错误：Unable to connect to Command Metric Stream

问题3：进入http://localhost:8764/hystrix看到的是一直loading状态

以上问题按照下面正确步骤操作都可以解决：

 

1. 在启动类要增加getServlet()的接口，同时要注意addUrlMappings的参数

 

@SpringBootApplication

@EnableEurekaClient

@EnableHystrix        

@EnableHystrixDashboard

public class EmDemoEurekaClientRibbonIiApplication {

 

    public static void main(String[] args) {

        SpringApplication.run(EmDemoEurekaClientRibbonIiApplication.class, args);

    }

   

//  //Howard 2019-02-21 add for HystrixDashboard

    @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;

    }

 

}

 

2，附上pom.xml的依赖

<dependencies>

        <dependency>

            <groupId>org.springframework.bootgroupId>

            <artifactId>spring-boot-starter-webartifactId>

        dependency>

        <dependency>

            <groupId>org.springframework.cloudgroupId>

            <artifactId>spring-cloud-starter-netflix-eureka-clientartifactId>

        dependency>

        <dependency>

            <groupId>org.springframework.cloudgroupId>

            <artifactId>spring-cloud-starter-netflix-ribbonartifactId>

        dependency>

        <dependency>

            <groupId>org.springframework.cloudgroupId>

            <artifactId>spring-cloud-starter-netflix-hystrixartifactId>

        dependency>

       

       

        <dependency>

            <groupId>org.springframework.bootgroupId>

            <artifactId>spring-boot-starter-actuatorartifactId>

        dependency>

       

        <dependency>

            <groupId>org.springframework.cloudgroupId>

            <artifactId>spring-cloud-starter-netflix-hystrix-dashboardartifactId>

        dependency>

       

        <dependency>

            <groupId>org.springframework.bootgroupId>

            <artifactId>spring-boot-starter-testartifactId>

            <scope>testscope>

        dependency>

    dependencies>

 

3，step1,访问http://localhost:8764/hystrix.stream看到是一些ping，没有数据，正常。

step2访问htpp://localhost:8764/hystrix，然后在界面填写：http://localhost:8764/hystrix.stream、2000、howard

看到的是loading，这是因为在等待。

step3再访问htpp://localhost:8764/hi?name=howard

step4再刷新上面step1/step2的操作出现的页面，就能正常看到数据了。

 

参考：

https://blog.csdn.net/dangshushu/article/details/80416042

https://www.cnblogs.com/hejianjun/p/8670693.html

https://www.cnblogs.com/x1mercy/p/9291348.html