dubbo使用spring注解出现无法注入

求助问答
1

导入的service包

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

消费者的service 代码

@Service
public class MeetingPubServiceImpl implements MeetingPubService {
    @Autowired(required = true)
    private UserService userService;
    @Override
    public MeetingPub selectByPcode(String pcode) {
        //查询数据库
        MeetingPub meetingPub = new MeetingPub();
        meetingPub.setId("1001");
        meetingPub.setPcode(pcode);
        meetingPub.setTitle("学习dubbo");
        meetingPub.setContent("Dubbo是一个RPC框架，是一个分布式服务解决方案");
        meetingPub.setUid("123");
        //根据用户id查询用户信息
        //调用的  user-service-provider信息
        System.out.println("远程服务访问 " + userService);
        User user = userService.selectById(meetingPub.getUid());
        meetingPub.setUser(user);
        return meetingPub;
    }
}

消费者的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://dubbo.apache.org/schema/dubbo"
       xmlns:context="http://www.springframework.org/schema/context"
       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
       http://www.springframework.org/schema/context
	   http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.liu.service.impl">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!-- 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="meeting-service-consumer"  />

    <!-- 使用zookeeper注册中心暴露发现服务地址 -->
    <dubbo:registry 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="userService" interface="com.liu.service.UserService" />

    <dubbo:provider server="netty4"/>
</beans>

对应的main

public class App 
{
    public static void main( String[] args ) throws IOException {
        ClassPathXmlApplicationContext context =
                new ClassPathXmlApplicationContext(
                        new String[] {"classpath:consumer.xml"});
        context.start();
        MeetingPubService meetingPubService = context.getBean(MeetingPubService.class);
        //通过会议编号查询会议信息
        MeetingPub meetingPub = meetingPubService.selectByPcode("10001011");
        // 显示调用结果
        System.out.println( meetingPub );
        //添加阻塞
        System.in.read();//按任意键退出
    }
}

消费者的依赖

<?xml version="1.0" encoding="UTF-8"?>

<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.liu</groupId>
  <artifactId>meeting-service-consumer</artifactId>
  <version>1.0-SNAPSHOT</version>

  <name>meeting-service-consumer</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <dubbo.version>2.7.5</dubbo.version>
  </properties>
  <dependencies>
    <dependency>
      <groupId>com.liu</groupId>
      <artifactId>meeting-interface-api</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.10</version>
    </dependency>
    <!--dubbo依赖  zookeeper依赖-->
    <dependency>
      <groupId>org.apache.dubbo</groupId>
      <artifactId>dubbo</artifactId>
      <version>${dubbo.version}</version>
    </dependency>

    <dependency>
      <groupId>org.apache.dubbo</groupId>
      <artifactId>dubbo-dependencies-zookeeper</artifactId>
      <version>${dubbo.version}</version>
    </dependency>
  </dependencies>
</project>