[Dubbo开发]配置简单的生产者和消费者

 

配置好jdk1.7、Zookeeper和Maven环境之后,开始尝试第一次搭建简单的dubbo生产者和消费者。

dubbo服务的原理,引用经典的官方图(cr.Dubbo官网):

关于Dubbo的原理和机制,在此不做赘述,具体可以查询官方文档:http://dubbo.apache.org/#!/?lang=zh-cn。

接下来开始搭建生产者和消费者。

1.生产者(Provider)

创建一个maven项目,

 

 

代码如下:

(1)接口ProviderService.java

package com.mohrss.service;

public interface ProviderService {
	public void sayHello();
}

(2)实现类ProviderServiceImpl.java

package com.mohrss.service.impl;

import com.mohrss.service.ProviderService;

import org.springframework.stereotype.Service;

@Service("providerService")
public class ProviderServiceImpl implements ProviderService {

	public void sayHello() {
		// TODO Auto-generated method stub
		System.out.println("Hello I am Provider");
	}

}

(3)程序入口TestProviderService.java

package com.mohrss.service;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestProviderService {
	public static void main(String[] args) {
        ClassPathXmlApplicationContext context=new ClassPathXmlApplicationContext(new String[]{"dubbo-provider.xml"});
        context.start();
        System.out.println("生产者服务已经注册成功!");
        try {
            System.in.read();//让此程序一直跑,表示一直提供服务
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

(4)dubbo配置文件dubbo-provider.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"  
	xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"  
    xsi:schemaLocation="http://www.springframework.org/schema/beans  
        http://www.springframework.org/schema/beans/spring-beans.xsd  
        http://code.alibabatech.com/schema/dubbo  
        http://code.alibabatech.com/schema/dubbo/dubbo.xsd
        http://www.springframework.org/schema/context  
        http://www.springframework.org/schema/context/spring-context-3.0.xsd ">   
        

	<!--用注解方式实现bean-->
	<context:component-scan base-package="com.mohrss.service">  
		<context:include-filter type="annotation" expression="org.springframework.stereotype.Service"/>   
	</context:component-scan>
    
    <!-- 提供方应用信息,用于计算依赖关系 -->  
    <dubbo:application name="provider"  />    
    
    <!-- 使用zookeeper注册中心暴露服务地址 -->  
    <dubbo:registry address="zookeeper://127.0.0.1:2181" />     
    
    <!-- 用dubbo协议在20880端口暴露服务 -->  
    <dubbo:protocol name="dubbo" port="29014" />  
    
    <!-- 声明需要暴露的服务接口 -->  
    <dubbo:service interface="com.mohrss.service.ProviderService" ref="providerService" />  
</beans>

(5)依赖文件配置pom.xml

 

<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.mohrss</groupId>
  <artifactId>provider</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <properties>  
      <spring.version>4.3.2.RELEASE</spring.version>  
  </properties>  

  <dependencies>  
      <dependency>  
          <groupId>com.alibaba</groupId>  
          <artifactId>dubbo</artifactId>  
          <version>2.5.6</version>  

      </dependency>  
      <dependency>  
          <groupId>com.github.sgroschupf</groupId>  
          <artifactId>zkclient</artifactId>  
          <version>0.1</version>  
      </dependency>  

  </dependencies>  
 
</project>

2.消费者(Consumer)

 消费者搭建和生产者相同的maven项目

(1)TestConsumerService.java

package com.mohrss.consumer;

import java.io.IOException;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.mohrss.service.ProviderService;

public class TestConsumerService {
    public static void main(String[] args) {
        ClassPathXmlApplicationContext context=new ClassPathXmlApplicationContext(new String[]{"dubbo-consumer.xml"});
        context.start();
        ProviderService testService = (ProviderService) context.getBean("testProviderService");
        testService.sayHello();
        try {
            System.in.read();
        } catch (IOException e) {       
            e.printStackTrace();
        }  
    }
}

(2)dubbo-consumer.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"  
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"  
    xsi:schemaLocation="http://www.springframework.org/schema/beans  
        http://www.springframework.org/schema/beans/spring-beans.xsd  
        http://code.alibabatech.com/schema/dubbo  
        http://code.alibabatech.com/schema/dubbo/dubbo.xsd ">   
             
    <!-- 消费方应用名,用于计算依赖关系,不是匹配条件,不要与提供方一样 -->  
    <dubbo:application name="consumer" />     
    
      <!-- 使用multicast广播注册中心暴露发现服务地址 -->  
    <dubbo:registry  protocol="zookeeper" address="127.0.0.1:2181" />       
    
      <!-- 生成远程服务代理,可以和本地bean一样使用demoService -->  
    <dubbo:reference id="testProviderService" interface="com.mohrss.service.ProviderService" />  
</beans>

3.启动zookeeper,右键启动TestProviderService.java,将看到生产者成功注册:

然后右键TestConsumerService.java, Run as Application,将看到:

 

注意:消费者调用服务方接口,应当将provider编译成jar包放到消费者中进行引用,此处为了方便,直接引用了生产者的接口文件ProviderService.java

 

注:原创博客,转载请注明。

 

 

posted @ 2018-08-02 23:27  圣所SANCTUARY  阅读(3276)  评论(0编辑  收藏  举报