dubbo项目的搭建（一）创建服务提供者

1.创建dubbo-demo-provider并添加依赖

<dependencies>
    <dependency>
        <groupId>com.alibaba</groupId>
	<artifactId>dubbo</artifactId>
	<version>2.6.0</version>
    </dependency>
    <dependency>
	<groupId>com.101tec</groupId>
	<artifactId>zkclient</artifactId>
	<version>0.10</version>
    </dependency>
    <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-framework</artifactId>
        <version>4.0.1</version>
    </dependency>
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>fastjson</artifactId>
        <version>1.2.46</version>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>1.7.25</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
        <version>3.4</version>
    </dependency>
    <dependency>
        <groupId>io.netty</groupId>
        <artifactId>netty-all</artifactId>
        <version>4.0.35.Final</version>
    </dependency>
</dependencies>

2.新建接口及实现类

package com.java1234.service;

/**
 * 服务提供者接口
 * @author Administrator
 *
 */
public interface DemoProviderService {

	public String sayHello(String name);
}

package com.java1234.service.impl;

import com.java1234.service.DemoProviderService;

/**
 * 服务提供者接口实现类
 * @author Administrator
 *
 */
public class DemoProviderServiceImpl implements DemoProviderService{

	public String sayHello(String name) {
		return "服务001";
	}

}

3.创建配置文件dubbo-demo-provider.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
       xmlns="http://www.springframework.org/schema/beans"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
       http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

	<!-- 提供方应用名称，用于计算依赖关系 -->
    <dubbo:application name="demo-provider" />
    
    <!-- 使用zookeeper注册中心暴露服务地址 -->
    <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
    
    <!-- 使用dubbo协议，在20880端口暴露服务 -->
    <dubbo:protocol name="dubbo" port="20880"/>
    
    <!-- service实现类作为本地的一个bean -->
    <bean id="demoProviderService" class="com.java1234.service.impl.DemoProviderServiceImpl"/>
    
    <!-- 声明需要暴露的服务接口 -->
    <dubbo:service interface="com.java1234.service.DemoProviderService" ref="demoProviderService"/>

</beans>

4.编写服务提供者启动类

import java.io.IOException;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class ProviderTest {

	public static void main(String[] args) {
		ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"dubbo-demo-provider.xml"});
        context.start();
        System.out.println("服务提供者向zookeeper注册中心注册服务成功（端口：20880）");
        try {
			System.in.read();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} // press any key to exit
        context.close();
	}
}