RestConfig.java

package com.kwan.springcloud.config;

import com.netflix.loadbalancer.IRule;
import com.netflix.loadbalancer.ZoneAvoidanceRule;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

@Configuration
public class RestConfig {

    @LoadBalanced
    @Bean
    public RestTemplate restTemplate() {
        return new RestTemplate();
    }

    /**
     * 自定义负载均衡
     */
    @Bean
    public IRule microIrule() {
        //return new RandomRule(); //轮训
        //return new BestAvailableRule();
        return new ZoneAvoidanceRule(); //新版本默认的策略
    }
}