解决springCloud2020 feign 熔断失效的问题

忘是亡心i 2023-10-11 15:54 3阅读 0赞

我们使用spring cloud做服务熔断时，断开服务进行测试，结果发现提示  
![在这里插入图片描述][20210714160958347.png_pic_center]

这是由于feign中没有开启hystrix，于是我们按照网上的教程添加配置进行开启

feign.hystrix.enabled=true

结果发现没有任何用处，这是因为feign.hystrix.enabled已经找不到了，对应新的控制装配的是

# 开启hystrix
    feign.circuitbreaker.enabled=true

下面贴出我的maven配置

<?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">
        <modelVersion>4.0.0</modelVersion>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.5.2</version>
            <relativePath/> 
        </parent>
        <groupId>com.cloud</groupId>
        <artifactId>fegin-consumer</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>fegin-consumer</name>
        <description>Demo project for Spring Boot</description>
        <properties>
            <java.version>11</java.version>
        </properties>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</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-eureka</artifactId>
                <version>1.4.7.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-feign</artifactId>
                <version>1.4.7.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
                <version>2.2.9.RELEASE</version>
            </dependency>
        </dependencies>
        <dependencyManagement>
            <dependencies>
                
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>2020.0.2</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>

application.properties配置

server.port=9001
    spring.application.name=feign-consumer
    # 注册服务的时候使用服务的ip地址
    eureka.instance.prefer-ip-address=false
    # 关闭默认使用的Ribbon的负载均衡
    spring.cloud.loadbalancer.ribbon.enabled=false
    hello-service.ribbon.ConnectTimeout=500
    hello-service.ribbon.ReadTimeout=2000
    # 开启重试机制
    hello-service.ribbon.OkToRetryOnAllOperations=true
    # 尝试更换两次实例重试，失败之后进行重试
    hello-service.ribbon.MaxAutoRetriesNextServer=2
    # 先尝试访问首选实例一次，失败之后才更换实例访问
    hello-service.ribbon.MaxAutoRetries=1
    # 开启hystrix
    feign.circuitbreaker.enabled=true
    # 注册服务
    eureka.client.service-url.defaultZone=http://peer1:1111/eureka/,http://peer2:1112/eureka/
    # 设置日志级别
    logging.level.root=info

主配置类的设置

import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    import org.springframework.cloud.openfeign.EnableFeignClients;
    
    @SpringBootApplication
    @EnableDiscoveryClient
    //开启Feign
    @EnableFeignClients
    //开启断路器
    @EnableCircuitBreaker
    public class FeginConsumerApplication {
        
    
        public static void main(String[] args) {
        
            SpringApplication.run(FeginConsumerApplication.class, args);
        }
    
    }

下面在进行测试应该就没什么问题了

[20210714160958347.png_pic_center]: https://img-blog.csdnimg.cn/20210714160958347.png#pic_center