springboot集成dubbo生产者&消费者方法

1. pom.xml添加maven依赖

        <!--spring-boot-starter-dubbo-->
        <dependency>
            <groupId>com.gitee.reger</groupId>
            <artifactId>spring-boot-starter-dubbo</artifactId>
            <version>1.1.1</version>
        </dependency>
        <!-- 引入zookeeper，去除其中的log4j，否则会因为日志原因导致堆栈溢出 -->
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.4.10</version>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!--Dubbo的API-->
        <dependency>
            <groupId>com.test</groupId>
            <artifactId>test-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

2. application.yml增加dubbo配置信息

spring:
  dubbo:
    application:
      name: demo-consumer
    base-package: com.test.api # dubbo服务发布者所在的包
    registry:
      address: 127.0.0.1 # zookeeper注册中心的地址
      port: 2181   # zookeeper注册中心的端口
      protocol: zookeeper
      register: true
    protocol:
      name: dubbo
      port: 20880
      accesslog: true
    provider:
      retries: 1
      delay: -1

3. 启动类增加Dubbo注解

@SpringBootApplication
@EnableDubbo
public class DemoApplication {
    
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

}

 4. 生产者service接口定义

package com.demo.api;


public interface TestServiceApi {
    /**
     * 输出问候
     */
    void sayHello();
}

5. 生产者接口实现（注意@Service的包路径是dubbo的包路径， 不是Spring的）

package com.demo.api.impl;

import com.alibaba.dubbo.config.annotation.Service;

@Service
public class TestServiceApiImpl implements TestServiceApi {
    /**
     * 输出问候
     */
　　@Override    
　　public void sayHello() {
         return "Hello world!";      
    }
}

6. 消费者调用示例

import com.alibaba.dubbo.config.annotation.Reference;
import com.demo.api.TestServiceApi;

@Reference
private TestServiceApi testServiceApi;

public void hello() {
     String result = testServiceApi.sayHello();
     System.out.println("result = " + result);
}