SpringCloud集成Nacos进行服务的注册与发现Demo

文章目录

• ​​创建服务提供者项目[demo-spring-cloud-nacos-service-provider]​​

• ​​项目源码地址​​
• ​​项目结构​​
• ​​引入jar包​​

• ​​父类包​​
• ​​服务发现包和 web项目​​

• ​​配置文件:application.yml​​
• ​​Controller服务：NacosServiceProviderController​​
• ​​启动类:NacosServiceProviderApp​​
• ​​启动后验证​​

• ​​运行启动类查看nacos​​
• ​​访问服务​​

• ​​创建服务消费者项目[demo-spring-cloud-nacos-service-consumer]​​

• ​​源码地址​​
• ​​项目结构​​
• ​​引入jar包​​

• ​​父类包​​
• ​​服务发现包和 web项目​​
• ​​涉及到客户端负载的开启 @LoadBalanced​​

• ​​Controller服务：NacosServiceProviderController​​
• ​​启动类:NacosServiceConsumerApp​​
• ​​验证​​

• ​​nacos客户端​​
• ​​从consumer去调用provider​​

创建服务提供者项目[demo-spring-cloud-nacos-service-provider]

项目源码地址

https://gitee.com/gaoxinfu_admin/demo-spring-cloud/tree/master/demo-spring-cloud-nacos-service-provider

项目结构

引入jar包

父类包

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

服务发现包和 web项目

需要提供给外部服务的调用，所以需要引用web包

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

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
    </dependencies>

配置文件:application.yml

主要配置端口，项目名称，nacos地址

server:
  port: 8079
spring:
  application:
    name: nacos-service-provider
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848

Controller服务：NacosServiceProviderController

package com.gaoxinfu.demo.spring.cloud;

import org.springframework.web.bind.annotation.*;

/**
 * @Description:
 * @Author: gaoxinfu
 * @Date: 2020-10-19 17:33
 */
@RestController
public class NacosServiceProviderController {

    @RequestMapping(value= "/findName/{name}",method = RequestMethod.GET)
    public String findName(@PathVariable String name){
        return "Nacos Service Provider:欢迎 "+name+" 访问";
    }
}

启动类:NacosServiceProviderApp

package com.gaoxinfu.demo.spring.cloud;


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

@SpringBootApplication
@EnableDiscoveryClient
public class NacosServiceProviderApp
{
    public static void main( String[] args )
    {
        SpringApplication.run(NacosServiceProviderApp.class,args);
    }
}

启动后验证

运行启动类查看nacos

访问服务

​​http://127.0.0.1:8079/findName/gaoxinfu​​

综上，服务端已经能够正常访问，并注册到nacos上

创建服务消费者项目[demo-spring-cloud-nacos-service-consumer]

源码地址

​​https://gitee.com/gaoxinfu_admin/demo-spring-cloud/tree/master/demo-spring-cloud-nacos-service-consumer​​

项目结构

引入jar包

父类包

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

服务发现包和 web项目

需要提供给外部服务的调用，所以需要引用web包

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

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
    </dependencies>

涉及到客户端负载的开启 @LoadBalanced

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

Controller服务：NacosServiceProviderController

package com.gaoxinfu.demo.spring.cloud;

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 javax.annotation.Resource;

/**
 * @Description:
 * @Author: gaoxinfu
 * @Date: 2020-10-20 10:17
 */
@RestController
public class NacosServiceConsumerContoller {


    @Resource
    private RestTemplate restTemplate;

    @GetMapping("/findName/{name}")
    public String findName(@PathVariable String name){
        return restTemplate.getForObject("http://nacos-service-provider/findName/"+name,String.class);
    }
}

启动类:NacosServiceConsumerApp

package com.gaoxinfu.demo.spring.cloud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;

/**
 *
 */
@SpringBootApplication
@EnableDiscoveryClient
public class NacosServiceConsumerApp {


    @LoadBalanced
    @Bean
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }

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

验证

nacos客户端

从consumer去调用provider

http://127.0.0.1:8080/findName/gaoxinfu