Spring Boot 2.X - 整合Dubbo分布式框架

柔情只为你懂 2022-04-03 13:50 155阅读 0赞

# springboot2-dubbo-demo #

*  Desc:  
    Spring Boot 2 整合 Dubbo 的一个小 Demo;

## 1. 创建一个Maven父工程springboot2-dubbo-demo： ##

以Intellij IDEA 为例:  
File->New->Project-Maven,直接Next,![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0UwOTYyMDEyNg_size_16_color_FFFFFF_t_70]  
填写GroupId,ArtifactId;  
![组织信息][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0UwOTYyMDEyNg_size_16_color_FFFFFF_t_70 1]  
Next->Finish.

## 2. 创建子模块: ##

在创建的父工程项目名字上右击New->Module-Maven(或者用Spring Initialize创建一个Spring Boot模块,然后再改);  
创建三个Module,分别为:

<table> 
 <thead> 
  <tr> 
   <th>springboot-dubbo-api</th> 
   <th>springboot-dubbo-provider</th> 
   <th>springboot-dubbo-consumer</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>存放API接口、Entity等</td> 
   <td>Dubbo服务提供者</td> 
   <td>Dubbo服务消费者、Web等</td> 
  </tr> 
 </tbody> 
</table>

## 3. 修改项目pom文件结构; ##

## 4. 导入Dubbo依赖: ##

<dependency>
        <groupId>com.alibaba.boot</groupId>
        <artifactId>dubbo-spring-boot-starter</artifactId>
        <version>0.2.0</version>
    </dependency>

这里要注意版本要求:

<table> 
 <thead> 
  <tr> 
   <th>versions</th> 
   <th>Java</th> 
   <th>Spring Boot</th> 
   <th>Dubbo</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>0.2.0</td> 
   <td>1.8+</td> 
   <td>2.0.x</td> 
   <td>2.6.2 +</td> 
  </tr> 
  <tr> 
   <td>0.1.1</td> 
   <td>1.7+</td> 
   <td>1.5.x</td> 
   <td>2.6.2 +</td> 
  </tr> 
 </tbody> 
</table>

## 5. 定义API接口: ##

在springboot-dubbo-api模块中新增一个接口:

public interface DemoService { 
        /** * say Hello. * @param name * @return */
        String sayHello(String name);
    }

## 6. 提供Provider服务: ##

1-实现DemoService接口:

@Service // 注意这个是dubbo的service注解,com.alibaba.dubbo.config.annotation.Service
    public class DemoServiceImpl implements DemoService { 
        /** * say Hello. * @param name * @return */
        @Override
        public String sayHello(String name) { 
            return "Hello, " + name + " (from Spring Boot)";
        }
    }

2-在xxxApplication的启动类上标注@EnableDubbo,启用Dubbo配置  
3-配置dubbo:

server.port=8081
    dubbo.application.name=springboot-dubbo-provider
    dubbo.application.version=1.0.0
    dubbo.registry.address=zookeeper://localhost:2181 #这个为自己的zookeeper地址,默认开放端口2181
    dubbo.provider.timeout=1000

配置完成,启动服务;

## 7. 编写消费者Consumer: ##

1-引入API依赖关系:

<dependency>
        <groupId>com.xudc</groupId>
        <artifactId>springboot-dubbo-api</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </dependency>

2-编写DemoController测试:

@RestController
    public class DemoController { 
    
        @Reference //用Dubbo提供的注解@Reference引入Spring Bean,com.alibaba.dubbo.config.annotation.Reference
        private DemoService demoService;
    
        @GetMapping("/hello")
        public String hello(String name){ 
            return demoService.sayHello(name);
        }
    }

3-编写properties配置文件:

server.port=80
    dubbo.application.name=springboot-dubbo-consumer
    dubbo.application.version=1.0.0
    dubbo.registry.address=zookeeper://localhost:2181
    dubbo.consumer.timeout=1000

4-启动xxxApplication,浏览器输入http://localhost/hello?name=andy测试;

## 项目地址 ##

*  GitHub:[https://github.com/xudc0521/springboot2-dubbo-demo][https_github.com_xudc0521_springboot2-dubbo-demo]
 *  码云:[https://gitee.com/xudc/springboot2-dubbo-demo][https_gitee.com_xudc_springboot2-dubbo-demo]

--------------------

因个人能力有限,如有不足或错误,欢迎指正~

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[https_github.com_xudc0521_springboot2-dubbo-demo]: https://github.com/xudc0521/springboot2-dubbo-demo
[https_gitee.com_xudc_springboot2-dubbo-demo]: https://gitee.com/xudc/springboot2-dubbo-demo