开始

是在之前的项目上
https://blog.csdn.net/ko0491/article/details/85166785

provider更改

新建spring.xml

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<?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:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:cache="http://www.springframework.org/schema/cache"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd">
    <!-- 当我们需要使用 注解时 开启注解 -->
    <context:annotation-config />
    <!--配置扫描包 -->
    <context:component-scan base-package="com.ghgcn.dubbo.service" />
        <!--导入dubbo配置文件 -->
    <import resource="service-provider.xml"/>
</beans>

service-provider改变

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:dubbo="http://dubbo.apache.org/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-4.3.xsd
       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd">

    <dubbo:application name="demo-provider" />

    <!-- 注册中心地址 -->
    <!-- <dubbo:registry address="multicast://224.5.6.7:1234" /> -->
    <dubbo:registry protocol="zookeeper" address="zookeeper://127.0.0.1:2181" />

    <!-- 声明协议与商品 -->
    <dubbo:protocol name="dubbo" port="20880" />

    <!-- 声明服务的实现类 旧的方式-->
    <!-- <bean id="greetingService" class="com.ghgcn.dubbo.service.impl.GreetingServiceImpl" 
        /> -->

    <!-- 声明服务 spring -->
    <dubbo:service interface="com.ghg.dubbo.api.GreetingService"
        ref="greetingService" protocol="dubbo" validation="false" />
</beans>

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在provicer实现的service上加注解@Servcie

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package com.ghgcn.dubbo.service.impl;

import org.springframework.stereotype.Service;

import com.ghg.dubbo.api.GreetingService;

@Service("greetingService") //名称
public class GreetingServiceImpl implements GreetingService {

    @Override
    public String sayHello(String name) {
        return "Hello " + name;
    }

}

main启动类改变

第一版

package com.ghgcn.dubbo;

import java.io.IOException;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Main {

   public static void main(String[] args) throws IOException {
       // com.alibaba.dubbo.container.Main.main(args);
       ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
               new String[]{ "META-INF/spring/service-provider.xml" });
       context.start();
       System.out.println("provider启动了");
       System.in.read(); // press any key to exit
   }

}

第二版

package com.ghgcn.dubbo;

import java.io.IOException;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Main {

    public static void main(String[] args) throws IOException {
        // com.alibaba.dubbo.container.Main.main(args);
        //
        // ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
        // new String[]{ "META-INF/spring/service-provider.xml" });
        /**
         * 使用spring文件
         */
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
                new String[]{ "META-INF/spring/spring.xml" });
        context.start();
        System.out.println("provider启动了");
        System.in.read(); // press any key to exit
    }

}

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正常启动

consumer改造

新建spring.xml

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spring.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:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:cache="http://www.springframework.org/schema/cache"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd">
    <!-- 当我们需要使用 注解时 开启注解 -->
    <context:annotation-config />
    <!--配置扫描包 -->
    <context:component-scan base-package="com.ghgcn.consumer" />
    <!--导入dubbo引入配置文件 -->
    <import resource="dubbo-client.xml" />
</beans>

dubbo-client.xml 无更改

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:dubbo="http://dubbo.apache.org/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-4.3.xsd
       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd">

    <dubbo:application name="dubbo-consumer"  />

    <!-- 注册中心 -->
    <dubbo:registry protocol="zookeeper" address="zookeeper://127.0.0.1:2181" />

    <!-- 声明要引用的服务 -->
    <dubbo:reference id="greetingService" check="false" interface="com.ghg.dubbo.api.GreetingService" />
</beans>

新建helloService与实现类

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package com.ghgcn.consumer.service;

public interface HelloService {

    String sayHello(String name);
}

package com.ghgcn.consumer.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.ghg.dubbo.api.GreetingService;
import com.ghgcn.consumer.service.HelloService;

/**
 * 加注解service
 * 
 * @author Administrator
 */
@Service
public class HelloServiceImpl implements HelloService {

    /**
     * 可以作 @Resource @Autowired等psring注解
     */
    @Autowired
    private GreetingService greetingService;

    @Override
    public String sayHello(String name) {

        return greetingService.sayHello(name);
    }

}

main方法启动更改

第一版

package com.ghgcn.consumer;

import java.util.Date;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.ghg.dubbo.api.GreetingService;

public class Main {

    public static void main(String[] args) {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
                new String[]{ "sping/dubbo-client.xml" });
        context.start();
        GreetingService greetingService = (GreetingService) context.getBean("greetingService"); // get remote service

        while (true) {
            try {
                Thread.sleep(1000);
                System.out.println(greetingService.sayHello("刘楠* " + new Date()));
            } catch (Throwable throwable) {
                throwable.printStackTrace();
            }

        }
    }

}

第二版

package com.ghgcn.consumer;

import java.util.Date;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.ghgcn.consumer.service.HelloService;

public class Main2 {

    public static void main(String[] args) {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[]{ "sping/spring.xml" });
        context.start();
        HelloService helloService = context.getBean(HelloService.class);

        while (true) {
            try {
                Thread.sleep(1000);
                System.out.println(helloService.sayHello("刘楠* " + new Date()));
            } catch (Throwable throwable) {
                throwable.printStackTrace();
            }

        }
    }

}

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启动正常

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