springcloud集成ribbon负载均衡的实例代码

package com.example.nacosribbonconsumers.config;

import com.netflix.loadbalancer.IRule;
import com.netflix.loadbalancer.RoundRobinRule;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.netflix.ribbon.RibbonClient;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.WEB.client.RestTemplate;

@Configuration
// 如果多个服务可以选择不同的策略

@RibbonClient(name = "nacos-ribbon-provider")
public class RibbonConfig {

    //定义负载均衡规则
    @Bean
    public IRule ribbonRule(){
        return new RoundRobinRule();

        
    }

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

}

package com.example.nacosribbonconsumers.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
public class RibbonTest {

    @Autowired
    private RestTemplate restTemplate;

    @GetMapping(value = "/ribbon-consumers/ribbon-test")
    public String printProviderLog(){
        String result = restTemplate.getForObject("Http://nacos-ribbon-provider/ribbon-test", String.class);
        return result;
    }

}

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