SpringCloud中熔断组件Hystrix表盘Dashboard在Greenwich.SR1版本的使用

￡神魔★判官ぃ 2022-02-22 15:03 96阅读 0赞

最近在学习Spring Cloud微服务时，配置熔断器仪表盘Hystrix Dashboard时，出现一些问题，无法看到图形化得页面，经过多次试验后发现是因为新旧版本暴露的终端路径不一致导致的。

首先是构建的服务结构是两个Eureka Server服务互相注册，负责服务发现和服务注册，暴露端口1111和1112，两个服务提供者HELLO-SERVICE通过Ribbon进行客户端负载均衡，一个服务消费者RIBBON-CONSOMER通过Hystrix熔断器请求服务提供者。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70][]

然后新建一个SpringBoot项目hystrix-dashboard用于展示hystrix仪表盘。

服务消费者RIBBON-CONSOMER配置如下：

![20190409152610746.png][]

启动类，通过注解开启了Eureka发现客户端和熔断器：

![20190409152624792.png][]

pom.xml内容如下：

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.1.4.RELEASE</version>
            <relativePath/> 
        </parent>
        <groupId>com.springboot</groupId>
        <artifactId>ribbon-consumer</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>ribbon-consumer</name>
        <description>Demo project for Spring Boot</description>
    
        <properties>
            <java.version>1.8</java.version>
            <spring-cloud.version>Greenwich.SR1</spring-cloud.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
                <version>2.1.1.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
                <version>2.1.1.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
            
            <dependency>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
                <version>1.2.17</version>
            </dependency>
        </dependencies>
    
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>${spring-cloud.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    </project>

Hystrix仪表盘服务启动类通过注解开启hystrix仪表盘，如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 1][]

所有服务启动后，访问服务消费者RIBBON-CONSOMER：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 2][]

然后访问仪表盘服务地址：[http://localhost:2001/hystrix][http_localhost_2001_hystrix]，

输入服务消费者开发的终端地址：[http://localhost:9000/hystrix.stream][http_localhost_9000_hystrix.stream]，显示如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 3][]

在hystrix-dashboard项目的终端日志中看到如下内容：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 4][]

我访问的明明是[http://localhost:9000/hystrix.stream][http_localhost_9000_hystrix.stream]，为什么会变成[http://localhost:9000/actuator/hystrix.stream][http_localhost_9000_actuator_hystrix.stream]，查了一下资料，发现不同版本开发的终端路径发生了变化。因此这里需要配置新的终端路径。可以有两种配置方式，一种是在属性文件中配置，一种是在启动类中通过代码配置。

1.  属性文件配置、

修改服务消费者RIBBON-CONSOMER的application.properties，增加端点路径：

management.endpoints.web.exposure.include=hystrix.stream,health,info

1.  修改启动类

修改RibbonConsomerApplication类，设置HystrixMetricsStreamServlet的映射路径，这里可以设置成/hystrix.stream，也可以设置成/actuator/hystrix.stream，相应的仪表盘的访问路径要和这里的设置一致。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 5][]

下面重新访问服务消费者RIBBON-CONSOMER开放的端点路径：[http://localhost:9000/actuator/hystrix.stream][http_localhost_9000_actuator_hystrix.stream]，这次可以看到提示打开文件：

![20190409152731759.png][]

其中的内容就是请求的内容：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 6][]

现在我们想要查看图表形式的数据就可以访问[http://localhost:2001/hystrix][http_localhost_2001_hystrix]，输入服务消费者提供的端点地址：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 7][]

点击Monitor Stream，内容如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 8][]

再次通过服务消费者访问服务提供者，仍然是加载状态，百思不得其解。。

后来无意中更换浏览器，使用Chrom成功，原来是Edge浏览器的问题。。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 9][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70]: /images/20220222/de9b5199aa68495797cc3f9e0654cc04.png
[20190409152610746.png]: /images/20220222/62fb9e4fb05e4b4482ad979cd23f44d5.png
[20190409152624792.png]: /images/20220222/617109f583d841379cd4efefb21c2e05.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 1]: /images/20220222/d5bd80ce8154434b969c92bc42d1f957.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 2]: /images/20220222/ed57bf1b4c724fc288a45d97764e5e90.png
[http_localhost_2001_hystrix]: http://localhost:2001/hystrix
[http_localhost_9000_hystrix.stream]: http://localhost:9000/hystrix.stream
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 3]: /images/20220222/ee0fb6d226874609b147c29f83cfd066.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 4]: /images/20220222/ef36ca16c8aa4f9289981182922d9e69.png
[http_localhost_9000_actuator_hystrix.stream]: http://localhost:9000/actuator/hystrix.stream
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 5]: /images/20220222/21c7a0063fc64b268fde026892831b9b.png
[20190409152731759.png]: /images/20220222/dbbce7234fce47f1983da4673ffbeb15.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 6]: /images/20220222/49df09e3ef674d75b616e865f66ebf9a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 7]: /images/20220222/4e1538fbb7b84c6cb10b39e576ae2539.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70 8]: /images/20220222/05cd3a0a9e87423b990eb6daa55bfce5.png
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