使用Spring Cloud Gateway实现代理服务

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

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@SpringBootApplication
@EnableDiscoveryClient
public class GatewayApplication {

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

}

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.cloud.gateway.route.RouteLocator;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;

@Configuration
public class GatewayConfig {

    @Bean
    public RouteLocator myRoutes(RouteLocatorBuilder builder) {
        return builder.routes()
            .route(p -> p
                .path("/api/**")
                .uri("lb://backend-service")
            )
            .build();
    }

}

spring:
  cloud:
    gateway:
      discovery:
        locator:
          enabled: true
      routes:
        - id: backend-service
          uri: lb://backend-service
          predicates:
            - Path=/api/**