spring cloud 之 dubbo nacos整合

整体思路:

+  搭建本地nacos服务,详见docker安装nacos_xgjj68163的博客-CSDN博客

+   共三个工程,生产者服务、消费者服务、生产者和消费者共同依赖的接口工程(打成jar,供生产者和消费者依赖);

+   生产者注册服务到nacos,消费者调用nacos上的生产者服务;

目录

1. 共同依赖的接口服务搭建

1.1 pom

1.2 公共接口

1.3 maven install , 将可依赖jar包安装到本地仓库 

 2. 生产者服务搭建

2.1 生产者服务pom

2. 配置文件及注册服务

3. 消费者服务搭建

3.1 消费者服务pom

3.2 nacos及dubbo配置

 3.3 调用dubbo服务

4. 测试

4.1 生产者服务注册成功

 4.2 消费者服务注册成功

 4.3 测试controller,消费者调用生成者服务


1. 共同依赖的接口服务搭建

1.1 pom

注意:

其中build plugins spring-boot-maven-plugin插件,classifier为exec,表示构建可依赖的jar包及可启动的jar包spring cloud 之 dubbo nacos整合_第1张图片



    4.0.0
    
        hj.example
        springboot-provider
        0.0.1-SNAPSHOT
         
    

    sample-api
    0.0.1-SNAPSHOT
    sample-api
    sample-api
    
        1.8
    
    
        
            org.springframework.boot
            spring-boot-starter-web
        
    
    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
                
                    exec
                
            
        
    


1.2 公共接口

spring cloud 之 dubbo nacos整合_第2张图片

package hj.example.sample;

public interface IHelloService {
    String sayHello(String name);
}

1.3 maven install , 将可依赖jar包安装到本地仓库 

 2. 生产者服务搭建

2.1 生产者服务pom

包括4个依赖:接口依赖sample-api、nacos配置中心依赖spring-cloud-starter-alibaba-nacos-config、nacos注册中心依赖spring-cloud-starter-alibaba-nacos-discovery,spring-cloud dubbo依赖spring-cloud-starter-dubbo



    4.0.0
    
        hj.example
        springboot-provider
        0.0.1-SNAPSHOT
         
    

    sample-provider
    0.0.1-SNAPSHOT
    jar

    sample-provider
    sample-provider
    
        1.8
    

    
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            hj.example
            sample-api
            0.0.1-SNAPSHOT
        
        
        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-nacos-discovery
            2.2.5.RELEASE
        
        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-nacos-config
            2.2.5.RELEASE
        
        
            com.alibaba.cloud
            spring-cloud-starter-dubbo
            2.2.5.RELEASE
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
                
                    exec
                
            
        
    

2. 配置文件及注册服务

通过@DubboService注解,将dubbo服务注册到nacos上;

dubbo配置,如果不在bootstrap.properties上配置spring.cloud.nacos.config.prefix,默认连接nacos配置中心的dubbo.properties配置文件;

程序优先读取bootstrap.properties配置文件,内容为:

spring.cloud.nacos.config.server-addr=127.0.0.1:8948
spring.cloud.nacos.config.username=nacos
spring.cloud.nacos.config.password=

spring.cloud.nacos.config.enabled=false

application.propertes文件内容为:

spring.application.name=sample-provider
server.port=8089

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8948
spring.cloud.nacos.discovery.username=nacos
spring.cloud.nacos.discovery.password=
spring.cloud.nacos.discovery.service=sample-provider

nacos上dubbo.properties文件内容:

spring cloud 之 dubbo nacos整合_第3张图片

 spring cloud 之 dubbo nacos整合_第4张图片

 启动类:

package hj.example.sampleprovider;

import org.apache.dubbo.config.spring.context.annotation.DubboComponentScan;
import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.context.ConfigurableApplicationContext;

@DubboComponentScan
@EnableDiscoveryClient
@SpringBootApplication
@EnableDubbo(scanBasePackages="hj.example.sampleprovider.sample")
public class SampleProviderApplication {

    public static void main(String[] args) {
//        Main.main(args);
        ConfigurableApplicationContext context = SpringApplication.run(SampleProviderApplication.class, args);
        String info = context.getEnvironment().getProperty("info");
        System.out.println("==========" + info);
    }
}

注册服务类:

package hj.example.sampleprovider.sample;

import hj.example.sample.IHelloService;
import org.apache.dubbo.config.annotation.DubboService;
import org.springframework.beans.factory.annotation.Value;

@DubboService
public class HelloServiceImpl implements IHelloService {

    @Value("${dubbo.application.name}")
    private String serviceName;
    public String sayHello(String name) {
        return String.format("[%s]: Hello, %s", serviceName, name);
    }
}

3. 消费者服务搭建

3.1 消费者服务pom



	4.0.0
	
		org.springframework.boot
		spring-boot-starter-parent
		2.2.10.RELEASE
		 
	

	hj.example
	sample-consumer
	0.0.1-SNAPSHOT
	sample-consumer
	sample-consumer
	
		1.8
	
	
		
			org.springframework.boot
			spring-boot-starter
		
		
			org.springframework.boot
			spring-boot-starter-web
		

		
			org.springframework.boot
			spring-boot-starter-test
			test
		
		
			hj.example
			sample-api
			0.0.1-SNAPSHOT
		
		
		
			com.alibaba.cloud
			spring-cloud-starter-alibaba-nacos-discovery
			2.2.5.RELEASE
		
		
			com.alibaba.cloud
			spring-cloud-starter-alibaba-nacos-config
			2.2.5.RELEASE
		
		
			com.alibaba.cloud
			spring-cloud-starter-dubbo
			2.2.5.RELEASE
		
	

	
		
			
				org.springframework.boot
				spring-boot-maven-plugin
				
					exec
				
			
		
	


3.2 nacos及dubbo配置

配置中心配置bootstrap.properties及nacos配置中心文件dubboConsumer.properties

bootstrap.properties

spring.cloud.nacos.config.server-addr=127.0.0.1:8948
spring.cloud.nacos.config.username=nacos
spring.cloud.nacos.config.password=

spring.cloud.nacos.config.prefix=dubboConsumer.properties

dubboConsumer.properties

spring cloud 之 dubbo nacos整合_第5张图片

 spring cloud 之 dubbo nacos整合_第6张图片

 3.3 调用dubbo服务

使用注解@DubboReference调用dubbo服务,测试controller

package hj.example.sampleconsumer.controller;

import hj.example.sample.IHelloService;
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestController {

    @DubboReference
    private IHelloService iHelloService;

    @RequestMapping("/test")
    public ResponseEntity test() {
        System.out.println("=========consumer test");
        String sayHelloRs = iHelloService.sayHello("hj");
        return new ResponseEntity<>(sayHelloRs, HttpStatus.OK);
    }
}
 
  

启动类:

package hj.example.sampleconsumer;

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

@SpringBootApplication
@EnableDubbo
@EnableDiscoveryClient
public class SampleConsumerApplication {

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

4. 测试

4.1 生产者服务注册成功

spring cloud 之 dubbo nacos整合_第7张图片

 4.2 消费者服务注册成功

spring cloud 之 dubbo nacos整合_第8张图片

 4.3 测试controller,消费者调用生成者服务

spring cloud 之 dubbo nacos整合_第9张图片

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