SpringCloud应用集成Nacos和Dubbo

第一步：引入依赖

版本见 => 附录：根pom文件=>版本控制片段

		<!-- Spring Boot依赖 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!-- dubbo -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
        </dependency>

第二步：配置 application.yml 文件

（1）服务提供者

server:
  port: 8084

dubbo:
  application:
    name: nacos-dubbo-provider
  protocol:
    name: dubbo
    port: -1
  registry:
    address: nacos://127.0.0.1:8848

（2）服务消费者

server:
  port: 8085

dubbo:
  application:
    name: nacos-dubbo-consumer
  protocol:
    name: dubbo
    port: -1
  registry:
    address: nacos://127.0.0.1:8848

第三步：启动类加`@EnableDubbo`注解开启服务注册与发现

（1）服务提供者

package com.anhaoyang.test.nacos.dubbo.provider.start;

import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * 服务提供者启动类
 * 该类位于 boot-nacos-dubbo-provider  项目子模块 boot-nacos-dubbo-provider-start中
 **/
@SpringBootApplication
@EnableDubbo //开启Dubbo
public class NacosDubboProviderStartApplication {

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

package com.anhaoyang.test.nacos.dubbo.provider.start;

import com.anhaoyang.test.nacos.dubbo.provider.api.NacosDubboProviderApi;
import org.apache.dubbo.config.annotation.DubboService;

/**
 * 测试接口
 * 该类位于 boot-nacos-dubbo-provider  项目子模块 boot-nacos-dubbo-provider-start中
 **/
@DubboService
public class NacosDubboProviderApiImpl implements NacosDubboProviderApi {
    @Override
    public String sayHello(String name) {
        return "Provider received: " + name;
    }
}

package com.anhaoyang.test.nacos.dubbo.provider.api;

/**
 * 服务提供者api定义
 * 该接口位于 boot-nacos-dubbo-provider  项目子模块 boot-nacos-dubbo-provider-api 中
 **/
public interface NacosDubboProviderApi {
    String sayHello(String name);
}

（2）服务消费者

package com.anhaoyang.test.nacos.dubbo.consumer;

import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@EnableDubbo //开启dubbo
public class NacosDubboConsumerApplication {

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

package com.anhaoyang.test.nacos.dubbo.consumer;

import com.anhaoyang.test.nacos.dubbo.provider.api.NacosDubboProviderApi;
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * 消费者调用测试
 **/
@RestController
public class NacosDubboConsumerController {
 	//需依赖  服务提供者定义的接口，即 boot-nacos-dubbo-provider-api 
    @DubboReference
    private NacosDubboProviderApi nacosDubboProviderService;

    @GetMapping("/get")
    public String get() {
        return nacosDubboProviderService.sayHello("ConsumerBody");
    }
}