springboot dubbo demo

1、代码结构

2、整体 pom.xml

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <modules>
        <module>dubbo-api-boot</module>
        <module>dubbo-movie-provider-boot</module>
        <module>dubbo-user-consumer-boot</module>
    </modules>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <groupId>com.test</groupId>
    <artifactId>dubbomicroservice-boot</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>dubbomicroservice-boot</name>
    <description>Demo project for Spring Boot</description>

    <packaging>pom</packaging>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>


<!--        <dependency>-->
<!--            <groupId>org.springframework.boot</groupId>-->
<!--            <artifactId>spring-boot-starter-test</artifactId>-->
<!--            <scope>test</scope>-->
<!--            <exclusions>-->
<!--                <exclusion>-->
<!--                    <groupId>org.junit.vintage</groupId>-->
<!--                    <artifactId>junit-vintage-engine</artifactId>-->
<!--                </exclusion>-->
<!--            </exclusions>-->
<!--        </dependency>-->
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

3、dubbo-api-boot

3.1 dubbo-api-boot 整体代码结构

3.2 dubbo-api-boot pom.xml

<?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">
    <parent>
        <artifactId>dubbomicroservice-boot</artifactId>
        <groupId>com.test</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>dubbo-api-boot</artifactId>

<dependencies>
    <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo-spring-boot-starter</artifactId>
        <version>2.7.6</version>
    </dependency>

<!--    <dependency>-->
<!--        <groupId>org.apache.zookeeper</groupId>-->
<!--        <artifactId>zookeeper</artifactId>-->
<!--        <version>3.6.1</version>-->
<!--        <exclusions>-->
<!--            <exclusion>-->
<!--                <groupId>org.slf4j</groupId>-->
<!--                <artifactId>slf4j-log4j12</artifactId>-->
<!--            </exclusion>-->
<!--        </exclusions>-->
<!--    </dependency>-->

    <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-framework</artifactId>
        <version>4.3.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-recipes</artifactId>
        <version>4.3.0</version>
    </dependency>
    
</dependencies>
</project>

3.3 dubbo-api-boot bean

Movie

package com.test.dubbo.bean;

import java.io.Serializable;

public class Movie implements Serializable {


    private Integer id;
    private String movieName;
    private Double price;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getMovieName() {
        return movieName;
    }

    public void setMovieName(String movieName) {
        this.movieName = movieName;
    }

    public Double getPrice() {
        return price;
    }

    public void setPrice(Double price) {
        this.price = price;
    }


    @Override
    public String toString() {
        return "Movie{" +
                "id=" + id +
                ", movieName='" + movieName + '\'' +
                ", price=" + price +
                '}';
    }
}

User

package com.test.dubbo.bean;

import java.io.Serializable;

public class User implements Serializable {

    private Integer id;
    private String username;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }
}

3.4 dubbo-api-boot service接口

MovieService

package com.test.dubbo.service;

import com.test.dubbo.bean.Movie;

public interface MovieService {

    public Movie getNewMovie();
}

UserService

package com.test.dubbo.service;

import com.test.dubbo.bean.Movie;

public interface UserService {

    public Movie buyNewMovie();

}

4、dubbo-movie-provider-boot

4.1 dubbo-movie-provider-boot 代码整体结构

4.2 dubbo-movie-provider-boot pom.xml

<?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">
    <parent>
        <artifactId>dubbomicroservice-boot</artifactId>
        <groupId>com.test</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>dubbo-movie-provider-boot</artifactId>

    <dependencies>

        <dependency>
            <groupId>com.test</groupId>
            <artifactId>dubbo-api-boot</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

    </dependencies>

</project>

4.3 dubbo-movie-provider-boot 服务接口实现类

MovieServiceImpl

package com.test.dubbo.service.impl;

import com.test.dubbo.bean.Movie;
import com.test.dubbo.service.MovieService;
import org.apache.dubbo.config.annotation.Service;
import org.springframework.stereotype.Component;

@Component //本工程内的组件可以Autowire
@Service //使用dubbo家的service暴露出来,为别的工程远程调用
public class MovieServiceImpl implements MovieService {
    public Movie getNewMovie() {
        //模拟经过数据库操作，等一些列操作获取了最新的电影
        Movie movie = new Movie();
        movie.setId(1);
        movie.setMovieName("电影名");
        movie.setPrice(96.99);
        System.out.println("电影服务被调用");
        return movie;
    }
}

4.4 dubbo-movie-provoder-boot application.properties

dubbo.application.name=dubbo-movie-provider-boot
dubbo.registry.address=zookeeper://127.0.0.1:2181
dubbo.protocol.port=20881
dubbo.protocol.name=dubbo

4.5 dubbo-movie-provoder-boot DubboMovieProviderBootApplication启动类

package com.test.dubbo;
import org.apache.dubbo.config.spring.context.annotation.DubboComponentScan;
import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/*
1、引入dubbo的starter
2、dubbo的相关场景配好了吗？
    1）以前配置的再配一下
    2）服务提供者使用@Service暴露服务
    3) 服务消费者使用@Reference引用服务
3、开启Dubbo基于注解的功能
 */

//@DubboComponentScan
@EnableDubbo
@SpringBootApplication
public class DubboMovieProviderBootApplication {

    public static void main(String[] args) {
        SpringApplication.run(DubboMovieProviderBootApplication.class, args);
    }
}

5、dubbo-user-consumer-boot

5.1 dubbo-user-consumer-boot 代码整体结构

5.2 dubbo-user-consumer-boot pom.xml

<?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">
    <parent>
        <artifactId>dubbomicroservice-boot</artifactId>
        <groupId>com.test</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>dubbo-user-consumer-boot</artifactId>

    <dependencies>
        
        <dependency>
            <groupId>com.test</groupId>
            <artifactId>dubbo-api-boot</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

    </dependencies>
</project>

5.3 dubbo-user-consumer-boot 服务实现类

UserServiceImpl

package com.test.dubbo.service.impl;

import com.test.dubbo.bean.Movie;
import com.test.dubbo.service.MovieService;
import com.test.dubbo.service.UserService;

import org.apache.dubbo.config.annotation.Reference;
import org.springframework.stereotype.Service;


@Service
public class UserServiceImpl implements UserService {

    @Reference
    MovieService movieService;

    public Movie buyNewMovie() {
        //Order order = new Order();
        //1.远程查询最新电影，并返回

        System.out.println("consumer消费者工程开始调用远程电影服务");
        Movie movie = movieService.getNewMovie();
        System.out.println("consumer消费者工程调用远程电影服务，获取了最新的电影"+movie);
        System.out.println("consumer消费者工程调用远程电影服务结束");

        //2.封装Order对象，并返回

//        order.setUserName(user.getUsername());
//        order.setMovieId(movie.getId());
//        order.setMovieName(movie.getMovieName());
        return movie;
    }
}

5.4 dubbo-user-consumer-boot Controller

package com.test.dubbo.controller;

import com.test.dubbo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@ResponseBody
public class HelloController {
    @Autowired
    UserService userService;

    @RequestMapping("/hello")
    public Object hello(){

       userService.buyNewMovie();

        return "OK";
    }
}

5.5 dubbo-user-consumer-boot application.properties

dubbo.application.name=dubbo-user-consumer-boot
dubbo.registry.address=zookeeper://127.0.0.1:2181

server.port=8180

5.6 DubboUserConsumerBootApplication

package com.test.dubbo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


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

}

6、测试

启动dubbo-movie-provider-boot及dubbo-user-consumer-boot 工程
通过consumer消费者接口调用 http://127.0.0.1:8180/hello 查看调用效果

7、代码下载地址

github下载地址