@LoadBalanced 负载均衡

@SpringBootApplication
public class ConsumerApplication {

    public static void main(String[] args) {
        SpringApplication.run(ConsumerApplication.class, args);
    }

    @Bean
    @LoadBalanced //具有负载均衡的请求
    RestTemplate restTemplate() {
        return new RestTemplate();
    }
}

客服端服务consumer

@Autowired
@Qualifier("restTemplate")
RestTemplate restTemplate; //具有负载均衡的

@GetMapping("/hello3")
public void hello3() throws IOException {
    String s = restTemplate.getForObject("http://provider/hello", String.class); //服务端的名和接口地址.
    System.out.println(s); //打印服务端hello注册2000s
}

启动 http://localhost:3000/hello3

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RestTemplate 类上加@LoadBalanced注解,发起请求调用服务端,请求就被拦截具有负载均衡