nacos微服务生产者，消费者，远程调用

Posted 2022-03-12 苏格拉的底

nacos微服务生产者，消费者，远程调用

微服务生产者

运行NacosProviderApp后，可以在nacos的服务列表查看到生产的服务名

ProviderController、

package com.itheima.nacos.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author Administrator
 * @version 1.0
 **/
@RestController
public class ProviderController 

    private static final Logger LOG = LoggerFactory.getLogger(ProviderController.class);

    @GetMapping("/service")
    public String service()
        LOG.info("provider invoke");
        return "provider invoke";
    

NacosProviderApp、

package com.itheima.nacos;

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

/**
 * @author Administrator
 * @version 1.0
 **/

@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class NacosProviderApp 
    public static void main(String[] args) 
        SpringApplication.run(NacosProviderApp.class,args);
        System.out.println("NacosProviderApp启动成功");
    

application.yml、

server:
  port: $port:56010 #启动端口

spring:
  application:
    name: quickstart-provider
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848
logging:
  level:
    root: info
    org.springframework: info

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>nacos-discovery</artifactId>
        <groupId>com.itheima.nacos</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>quickstart-provider</artifactId>
    <dependencies>

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>


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

</project>

服务消费者

ProviderClient、

package com.itheima.nacos.client;

import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;

/**
 * Created by Administrator.
 */
@FeignClient(value = "quickstart-provider")//调用哪个服务
public interface ProviderClient 

    @GetMapping("/service")//调用哪个服务方法
    public String service();

ConsumerController\\

package com.itheima.nacos.controller;

import com.itheima.nacos.client.ProviderClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author Administrator
 * @version 1.0
 **/
@RestController
public class ConsumerController 

    //动态代理对象，内部远程调用服务生产者
    @Autowired
    ProviderClient providerClient;


    @GetMapping("/service")
    public String service()
        //远程调用
        String providerResult = providerClient.service();

//        返回生产者的串
        return "consumer invoke" + "|" + providerResult;

    

NacosConsumerApp\\

package com.itheima.nacos;

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

/**
 * @author Administrator
 * @version 1.0
 **/

@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class NacosConsumerApp 
    public static void main(String[] args) 
        SpringApplication.run(NacosConsumerApp.class,args);
        System.out.println("NacosConsumerApp启动成功");

    

application.yml、

server:
  port: 56020 #启动端口 命令行注入

spring:
  application:
    name: quickstart-consumer
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848
#        namespace: c67e4a97-a698-4d6d-9bb1-cfac5f5b51c4
#        cluster-name: DEFAULT

消费方也是暴露一个服务，也会在服务列表生产一个服务名

服务远程调用

http://localhost:56020/service
成功调用服务生产者的地址

网关配置

新建一个nacos

api-gateway.yaml、NACOS_MICROSERVICE_GROUP

zuul:
    routes:
        application1:
            stringPrefix: false
                path:/application/**

项目地址demo:https://gitee.com/zouxiongnb/nacos-discovery