SpringCloud -根据服务名获取服务运行实例并进行负载均衡

Nacos注册中心

每个服务启动之后都要向注册中心发送服务注册请求，注册中心可以和各个注册客户端自定义协议实现服务注册和发现。

• pom.xml

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

• 启动服务

获取服务实例测试

@EnableDiscoveryClient
@SpringBootApplication
public class Main83
{
   
    public static void main(String[] args)
    {
   
        ConfigurableApplicationContext applicationContext = SpringApplication.run(Main83.class, args);

        DiscoveryClient discoveryClient = applicationContext.getBean(DiscoveryClient.class);
        List<ServiceInstance> instances = discoveryClient.getInstances("nacos-payment-provider");
        for (ServiceInstance instance : instances) {