发布Dubbo服务

新建项目

新建一个Maven项目名称为DubboDemo，在该项目下新建一个子模块项目名称为Provider

创建java和resources文件夹

引入依赖

<dependency>
  <groupId>junit</groupId>
  <artifactId>junit</artifactId>
  <version>4.11</version>
  <scope>test</scope>
</dependency>
<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>

Java代码

服务提供者接口DemoProviderService.java

package service;

/**
 * 服务提供者接口
 *
 * @author LeDao
 * @company
 * @create 2021-08-09 22:20
 */
public interface DemoProviderService {

    /**
     * @param name
     * @return
     */
    String sayHello(String name);
}

服务提供者接口实现类DemoProviderServiceImpl.java

package service.impl;

import service.DemoProviderService;

/**
 * 服务提供者接口实现类
 *
 * @author LeDao
 * @company
 * @create 2021-08-10 2:54
 */
public class DemoProviderServiceImpl implements DemoProviderService {

    @Override
    public String sayHello(String name) {
        return "服务员（端口：20880）" + name;
    }
}

新建配置文件

在resources文件夹中新建，命名为dubbo-demo-provider.xml，代码如下：

<?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://localhost: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="service.impl.DemoProviderServiceImpl"/>
    <!--声明需要暴露的服务接口-->
    <dubbo:service interface="service.DemoProviderService" ref="demoProviderService"/>
</beans>

测试

import org.springframework.context.support.ClassPathXmlApplicationContext;

import java.io.IOException;

/**
 * @author LeDao
 * @company
 * @create 2021-08-10 2:55
 */
public class ProviderTest {

    public static void main(String[] args) {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("dubbo-demo-provider.xml");
        context.start();
        System.out.println("服务提供者注册成功（端口：20880）");
        try {
            System.in.read();
        } catch (IOException e) {
            e.printStackTrace();
        }
        context.close();
    }
}