spring dubbo集成(nacos dubbo)

大家好，又见面了，我是你们的朋友全栈君。

springBoot整合dubbo集成

	传统Spring 整合dubbo，需要繁琐的编写一堆堆的*.xml 配置文件
	而springBoot整合dubbo后，不在需要写*.xml,通过jar包引用，完
	成整合，通过注解的形式完成配置。提高我们的开发效率

目录结构
在这里插入图片描述
1 服务层生产者开发（hs-ldm-server-service）
1.1添加dubbo依赖包

<dependencies>
  <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-framework</artifactId>
        <version>2.8.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-recipes</artifactId>
        <version>2.8.0</version>
    </dependency>

		<dependency>
		    <groupId>com.alibaba.spring.boot</groupId>
		    <artifactId>dubbo-spring-boot-starter</artifactId>
		    <version>2.0.0</version>
		</dependency>
		
	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>dubbo</artifactId>
		<version>2.6.1</version>
	</dependency>
	<dependency>
		<groupId>org.apache.zookeeper</groupId>
		<artifactId>zookeeper</artifactId>
		<version>3.4.6</version>
	</dependency>
	<dependency>
		<groupId>com.101tec</groupId>
		<artifactId>zkclient</artifactId>
		<version>0.9</version>
	</dependency>

如果不加curator-recipes和curator-framework依赖启动java.lang.NoClassDefFoundError: org/apache/curator/RetryPolicy 问题。
启动如果报错，请检查依赖版本是否过低！
1.2 配置application.properties
server.port=8050
#dubbo配置
spring.dubbo.application.name=hs-ldm-server-service
#注册中心地址
spring.dubbo.registry.address=zookeeper://192.168.228.52:2181
#配置了这个后，就会一直有守护京城，而不是启动就怪盗了
spring.dubbo.server=true
#扫描的包
spring.dubbo.scan=com.gy.ldm.server
#Dubbo Protocol
spring.dubbo.protocol.name=dubbo
spring.dubbo.protocol.port=29999
spring.dubbo.protocol.version=1.0.0
#DemoService version
service.version=1.0.0
1.3服务类

package com.gy.ldm.server.service;

import org.springframework.stereotype.Component;

import com.alibaba.dubbo.config.annotation.Service;
@Component
@Service(version="${service.version}" ,interfaceClass = DubboServiceApi.class)
public class DubboService implements DubboServiceApi{ 
   

	public String getDubbo() { 
   
		// TODO Auto-generated method stub
		return "dubbo";
	}

}

@component （把对象实例化到spring容器中）
注意这里的service引用！（com.alibaba.dubbo.config.annotation.Service）
1.4 服务启动类

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

启动成功！
2.接入层消费者开发
添加依赖和服务层提供者依赖一样
2.1配置application.properties

server.port=8051
#dubbo配置
#服务名称
spring.dubbo.application.name=ldm-client
#注册中心地址
spring.dubbo.registry.address=zookeeper://192.168.228.52:2181 
#扫描的包
spring.dubbo.scan=com.gy.ldm.client
## DemoService version
service.version=1.0.0

2.2Controller层服务

package com.gy.ldm.client.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.alibaba.dubbo.config.annotation.Reference;
import com.gy.ldm.server.service.DubboServiceApi;

@Controller
public class TestController { 
   
	@Reference(version="${service.version}",check = false)
	private DubboServiceApi dubboServiceApi;
	@RequestMapping("customer")
	@ResponseBody
	public String customer(){ 
   
		
		return dubboServiceApi.getDubbo();
	}
}

2.3启动服务

package com.gy.ldm.client;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;

import com.alibaba.dubbo.spring.boot.annotation.EnableDubboConfiguration;



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