[Java知识库]【Sping Cloud Netflix】04--Hystrix dashboard 断路器仪表盘

一，介绍

1）Hystrix数据监控仪表盘
2）Hystrix日志，是通过Actuator工具来暴露出来

二，Actuator

1.介绍

springboot 提供的一个项目指标工具，可以通过Actuator获取项目的各种日志数据

• 健康状态
• spring容器中所有的对象
• spring mvc映射的所有路径
• jvm堆内存镜像

2.依赖

Zuul中默认含有Actuator,所以无需添加

3.暴露日志设置

m.e.w.e.i = "*" #暴露所有日志
m.e.w.e.i = health #暴露健康状态日志
m.e.w.e.i = health,beans,mappings,hytrix,stream #暴露多种日志

4.查看日志

http://localhost:3001/actuator
没添加依赖前

添加查看所有的依赖

management:
  endpoints:
    web:
      exposure:
        include: "*"

查看

当我们启用item服务，
访问http://localhost:3001/actuator/hystrix.stream

三，搭建Hystrix dashboard

1.新建模块

新建spring boot 项目


这里不添加任何依赖

2.添加依赖 Hystrix dashboard，配置pom.xml

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>springcloud1</artifactId>
        <groupId>com.drhj</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.drhj</groupId>
    <artifactId>sp07-hystrix-dashboard</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>sp07-hystrix-dashboard</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

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

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

3.yml配置

允许抓取的服务器列表：localhost:…

server:
  port: 4001
hystrix:
  dashboard:
    proxy-stream-allow-list: 
      - localhost

4.启动类添加注解

package com.drhj.sp07;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;

@EnableHystrixDashboard
@SpringBootApplication
public class Sp07HystrixDashboardApplication {

    public static void main(String[] args) {
        SpringApplication.run(Sp07HystrixDashboardApplication.class, args);
    }

}

5.测试

启动项目
访问http://localhost:4001/hystrix


刷新http://localhost:3001/item-service/t45t4?token=100，查看服务波动

红色的0表示请求失败数为0
Circuit表示熔断器的状态
使用压力测试工具测试

四，Turbine

聚合多台服务器的日志数据，提供给仪表盘显示

1.启动网关Zuul高可用

2.新建模块sp08–turbine

创建springboot的moudle

添加依赖

3.配置pom.xml文件

添加eureka client, turbine依赖

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>springcloud1</artifactId>
        <groupId>com.drhj</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.drhj</groupId>
    <artifactId>sp08-turbine</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>sp08-turbine</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-turbine</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

4.配置application.yml文件

spring:
  application:
    name: turbine
# 2001 eureka
# 3001 zuul
# 4001 hystrix dashboard    
server:
  port: 5001
eureka:
  client:
    service-url: 
      defaultZone: http://eureka1:2001/eureka,http://eureka2:2002/eureka
turbine:
  app-config: zuul     #多个的话使用,号隔开
  cluster-name-expression: new String("default")

5.启动类添加注解@EnableTurine

package com.drhj.sp08;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.turbine.EnableTurbine;

@EnableTurbine
@SpringBootApplication
public class Sp08TurbineApplication {

    public static void main(String[] args) {
        SpringApplication.run(Sp08TurbineApplication.class, args);
    }

}

6.测试

启动服务
分别运行两个网关


访问 合并日志版本：http://localhost:5001/turbine.stream

查看断路器仪表盘