SpringCloud + Nacos +Springboot + Dubbo 集成做注册中心（2）

项目结构：

server 消息提供者

nacos-consumer 消息消费者

server-dubbo-provider-api api接口

父项目依赖：

<?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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.jq</groupId>
    <artifactId>test</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>

    <modules>
<!--
        子工程
-->
        <module>server</module>
        <module>nacos-consumer</module>
        <module>nacos-config</module>
        <module>nacos-feign</module>
        <module>server-dubbo-provider-api</module>
    </modules>

    <properties>
        <java.version>1.8</java.version>
        <spring-boot.version>2.0.4.RELEASE</spring-boot.version>
        <spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
        <nacos.version>0.2.2.RELEASE</nacos.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

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

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

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${nacos.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

</project>

1.创建提供方SpringBoot项目

项目命名为server

引入pom依赖

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <artifactId>test</artifactId>
        <groupId>com.jq</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <groupId>com.jq</groupId>
    <artifactId>server</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>server</name>
    <description>Demo project for Spring Boot</description>

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

        <!-- cloud-dubbo依赖 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-dubbo</artifactId>
            <version>2.1.1.RELEASE</version>
        </dependency>

        <!-- 引入provider-api -->
        <dependency>
            <groupId>com.jq</groupId>
            <artifactId>server-dubbo-provider-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>
</project>

在application.yml配置

server:
  port: 10000

spring:
  application:
    name: server   #项目名称


  cloud:
    nacos:
      discovery:
        server-addr: 192.168.230.136:8848  #注册中心地址

dubbo:
  scan:
    base-packages: com.jq.service   #扫描包范围
  protocol:
    name: dubbo   # 遵循的协议
    port: 19003  #dubbo服务端口  自定义
  registry:
    address: spring-cloud:// 192.168.230.136:8848

启动类加注解

package com.jq;

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

@SpringBootApplication
@EnableDiscoveryClient
public class ServerApplication {

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

创建控制器

package com.jq.controller;

import com.jq.service.IDubboProviderService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("hell")
public class testController {

    @Autowired
    private IDubboProviderService iDubboProviderService ;

    /**
     * dubbo 调用
     * @param
     * @return
     */
    @GetMapping("/getDubboRemoteInfo")
    public String getDubboRemoteInfo(){

        return iDubboProviderService.getRemoteDubboInfo();
    }
}

创建DubboProviderServiceImpl 实现类

package com.jq.service.impl;

import com.jq.service.IDubboProviderService;

@org.apache.dubbo.config.annotation.Service
 //@org.apache.dubbo.config.annotation.Reference：生成代理对象，就像调用本地方法一样调用远程业务方法
public class DubboProviderServiceImpl implements IDubboProviderService {


    public String getRemoteDubboInfo() {
        return "你好!!!!!!!!!!!";
    }
}

2.创建api接口Maven项目

项目命名为 server-dubbo-provider-api

创建IDubboProviderService接口

package com.jq.service;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

public interface IDubboProviderService {
    /**
     * 获取信息
     * @param
     * @return
     */
    @GetMapping("/getRemoteDubboInfo")
    String getRemoteDubboInfo();
}

访问提供者数据 ，下图为效果 http://localhost:10000/hell/getDubboRemoteInfo

3.创建消费方项目

项目命名为nacos-consumer

引入pom依赖

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <artifactId>test</artifactId>
        <groupId>com.jq</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <groupId>com.jq</groupId>
    <artifactId>nacos-consumer</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>server</name>
    <description>Demo project for Spring Boot</description>

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

        <!-- 引入provider-api -->
        <dependency>
            <groupId>com.jq</groupId>
            <artifactId>server-dubbo-provider-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!-- cloud-dubbo依赖 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-dubbo</artifactId>
            <version>2.1.1.RELEASE</version>
        </dependency>
    </dependencies>
</project>

在application.yml配置

server:
  port: 10001

spring:
  application:
    name: nacos-consumer #项目名称


  cloud:
    nacos:
      discovery:
        server-addr: 192.168.230.136:8848  #注册中心地址

dubbo:
  scan:
    base-packages: com.jq.service   #扫描包范围
  protocol:
    name: dubbo   # 遵循的协议
    port: 19004  #dubbo服务端口  自定义
  registry:
    address: spring-cloud:// 192.168.230.136:8848

启动类加注解

package com.jq;

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

@SpringBootApplication
@EnableDiscoveryClient
public class NacosConsumerApplication {

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

}

创建控制层

package com.jq.controller;

import com.jq.service.IDubboProviderService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/consumer")
public class ConsumerController {



    /***
     * 
     * 方式一
     * 
     * 
     * */
    @org.apache.dubbo.config.annotation.Reference
    //@org.apache.dubbo.config.annotation.Reference：生成代理对象，就像调用本地方法一样调用远程业务方法
    private IDubboProviderService iDubboProviderService ;


    /**
     * dubbo 远程调用
     * @param
     * @return
     */
    @GetMapping("/getDubboRemoteInfo")
    public String getDubboRemoteInfo(){

        return iDubboProviderService.getRemoteDubboInfo();
    }


    /***
     *
     * 方式二
     *
     *
     * */


    @Autowired
    private RestTemplate restTemplate;

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

    @GetMapping("/consumer")
    public String test() {
        //server 服务名称
        //hell控制层
        //getDubboRemoteInfo 方法
        return restTemplate.getForObject("http://server/hell/getDubboRemoteInfo",String.class);
    }





}

访问消费者,下图为效果 http://localhost:10001/consumer/getDubboRemoteInfo