spring cloud (五) 熔断面板聚合熔断 turbine

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改造feign 项目

1 启动类添加注解 @EnableHystrix

2 添加如下配置文件

#ji
eureka.instance.metadata-map.cluster=MAIN
#actuator
management.server.port=9003
management.endpoints.web.exposure.include="*"
management.endpoints.web.cors.allowed-origins="*"
management.endpoints.web.cors.allowed-methods="*"

feign.hystrix.enabled=true

3 添加如下 pom依赖

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

<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-actuator</artifactId>
</dependency>

创建一个springboot项目 spring-cloud-turbine

1 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 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.</modelVersion>

    <groupId>com.example</groupId>

    <artifactId>Spring-Cloud-Turbine</artifactId>

    <version>0.0.-SNAPSHOT</version>

    <packaging>jar</packaging>

    <name>Spring-Cloud-Turbine</name>

    <description>Demo project for Spring Boot</description>

    <parent>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-parent</artifactId>

        <version>2.0..RELEASE</version>

        <relativePath/> <!-- lookup parent from repository -->

    </parent>

    <properties>

        <project.build.sourceEncoding>UTF-</project.build.sourceEncoding>

        <project.reporting.outputEncoding>UTF-</project.reporting.outputEncoding>

        <java.version>1.8</java.version>

        <spring-cloud.version>Finchley.SR1</spring-cloud.version>

    </properties>

    <dependencies>

        <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-turbine</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.cloud</groupId>

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

        </dependency>

        <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-test</artifactId>

            <scope>test</scope>

        </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>

2 配置文件

server.port=

spring.application.name=turbine

eureka.client.service-url.defaultZone=http://127.0.0.1:8080/eureka/

turbine.app-config=feign-consumer

# dan ge setting

#turbine.cluster-name-expression=new String("default")

#turbine.combine-host-port=true

#ji qun setting

turbine.aggregator.clusterConfig=MAIN

turbine.cluster-name-expression=metadata['cluster']

3 启动类

@SpringBootApplication

@EnableTurbine

@EnableHystrixDashboard

public class SpringCloudTurbineApplication {

    public static void main(String[] args) {

        SpringApplication.run(SpringCloudTurbineApplication.class, args);

    }

}

依次启动 eureka ,feign,turbine 三个项目

访问 http://127.0.0.1:7032/hystrix ，出现如下网页