version: '2'
services:
  consul-container:
    image: consul
    container_name: consul-dev
    environment:
      - CONSUL_BIND_INTERFACE=eth0
    ports:
      - "8500:8500"
    volumes:
      - "./config:/consul/config/"
      - "./data/:/consul/data/"
    command: agent -dev -client=0.0.0.0

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-starter-consul-discovery</artifactId>
</dependency>
<!--actuator用于心跳檢查-->
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

server:
  port: ${port:8082}

spring:
  application:
    name: provider
  cloud:
    consul:
      #consul服務(wù)地址
      host: 127.0.0.1
      #consul服務(wù)端口
      port: 8500
      discovery:
        #是否注冊(cè)
        register: true
        #實(shí)例ID
        #        instance-id: ${spring.application.name}-${server.port}
        instance-id: ${spring.application.name}:${random.value}
        #服務(wù)實(shí)例名稱
        service-name: ${spring.application.name}
        #服務(wù)實(shí)例端口
        port: ${server.port}
        #健康檢查路徑
        healthCheckPath: /actuator/health
        #健康檢查時(shí)間間隔
        healthCheckInterval: 15s
        #開啟ip地址注冊(cè)
        prefer-ip-address: true
        #實(shí)例的請(qǐng)求ip
        ip-address: ${spring.cloud.client.ip-address}

package com.ldx.provider.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@RestController
public class TestController {
    @Autowired
    private DiscoveryClient discoveryClient;
    @Value("${server.port}")
    private String port;
    @GetMapping("products")
    public String products(){
        List<ServiceInstance> list = discoveryClient.getInstances("consumer");
        if(list != null && list.size() > 0 ) {
            ServiceInstance serviceInstance = list.get(0);
            System.out.println(serviceInstance);
        }
        return "Hello World：" + port;
    }
}

server:
  port: ${port:8081}
spring:
  application:
    name: consumer
  cloud:
    consul:
      #consul服務(wù)地址
      host: 127.0.0.1
      #consul服務(wù)端口
      port: 8500
      discovery:
        #是否注冊(cè)
        register: true
        #實(shí)例ID
        #        instance-id: ${spring.application.name}-${server.port}
        instance-id: ${spring.application.name}:${random.value}
        #服務(wù)實(shí)例名稱
        service-name: ${spring.application.name}
        #服務(wù)實(shí)例端口
        port: ${server.port}
        #健康檢查路徑
        healthCheckPath: /actuator/health
        #健康檢查時(shí)間間隔
        healthCheckInterval: 15s
        #開啟ip地址注冊(cè)
        prefer-ip-address: true
        #實(shí)例的請(qǐng)求ip
        ip-address: ${spring.cloud.client.ip-address}
        metadata:
          #添加自定義元數(shù)據(jù)
          my-name: zhangtieniu-consumer

package com.ldx.consumer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;
@SpringBootApplication
public class ConsumerApplication {
   @Bean
   @LoadBalanced 
   public RestTemplate loadbalancedRestTemplate(){
      return new RestTemplate();
   }
   public static void main(String[] args) {
      SpringApplication.run(ConsumerApplication.class, args);
}

package com.ldx.consumer.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import java.util.List;
@RestController
public class TestController {
    @Autowired
    private RestTemplate restTemplate;
    @GetMapping()
    public String consumer(){
        return this.restTemplate.getForObject("http://provider/products", String.class);
    }
}