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  • consul集成openfeign负载策略

    consul 集成openfeign 依赖如下:

     <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>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-consul-discovery</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-openfeign</artifactId>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <optional>true</optional>
            </dependency>   
        </dependencies>
    

    默认策略是轮询:RoundRobinLoadBalancer.java类
    可以自定义负载策略
    官方提供了随机策略RandomLoadBalancer.java
    切换随机策略代码:

    @Configuration
    @LoadBalancerClients(defaultConfiguration = LoadBalancerConfig.class)
    public class LoadBalancerConfig {
    
        @Bean
        public ReactorLoadBalancer<ServiceInstance> randomLoadBalancer(Environment environment,
                                                                       LoadBalancerClientFactory loadBalancerClientFactory) {
            String name = environment.getProperty(LoadBalancerClientFactory.PROPERTY_NAME);
            return new RandomLoadBalancer(
                    loadBalancerClientFactory.getLazyProvider(name, ServiceInstanceListSupplier.class), name);
        }
    }
    
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  • 原文地址:https://www.cnblogs.com/stubborn-dude/p/15339994.html
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