Spring boot整合dubbo

偏执的太偏执、 2022-05-14 11:06 215阅读 0赞

### GitHub ###

dubbo的GitHub地址  
[https://github.com/apache/incubator-dubbo][https_github.com_apache_incubator-dubbo]  
![这里写图片描述][70]  
dubbo场景启动器  
[https://github.com/apache/incubator-dubbo-spring-boot-project][https_github.com_apache_incubator-dubbo-spring-boot-project]  
![这里写图片描述][70 1]

### 版本配置 ###

Spring boot使用，2.0.4版本  
dubbo使用，0.2.0版本

参考文档  
[https://github.com/apache/incubator-dubbo-spring-boot-project][https_github.com_apache_incubator-dubbo-spring-boot-project]  
![这里写图片描述][70 2]  
dubbo-spring-boot-starter  
自动配置  
导入了需要的jar包  
![这里写图片描述][70 3]  
配置文件，标签配置  
application.properties

### 提供者 ###

dubbo.application.name=user-service-provider
    dubbo.registry.address=127.0.0.1:2181
    dubbo.registry.protocol=zookeeper
    dubbo.protocol.name=dubbo
    dubbo.protocol.port=20881
    dubbo.monitor.protocol=registry
    dubbo.scan.base-packages=com.atguigu.gmall

### 配置说明 ###

application.name  
是服务名，不能跟别的dubbo提供端重复

registry.protocol  
是指定注册中心协议

registry.address  
是注册中心的地址加端口号

protocol.name  
是分布式固定是dubbo,不要改

base-package  
注解方式要扫描的包

### 消费者 ###

dubbo.application.name=boot-order-service-consumer
    dubbo.registry.address=zookeeper://127.0.0.1:2181
    dubbo.monitor.protocol=registry
    dubbo.scan.base-package=com.atguigu.gmall
    dubbo.protocol.name=dubbo

### 注解配置 ###

生产者  
@Service  
使用dubbo提供的@Service注解

@Service//暴露服务 
    @Component
    public class UserServiceImpl implements UserService { 
    
        @HystrixCommand
        @Override
        public List<UserAddress> getUserAddressList(String userId) {

@EnableDubbo  
开启注解功能

@EnableDubbo //开启基于注解的dubbo功能
    @EnableHystrix //开启服务容错
    @SpringBootApplication
    public class BootUserServiceProviderApplication { 
    
        public static void main(String[] args) {
            SpringApplication.run(BootUserServiceProviderApplication.class, args);
        }
    }

消费者  
@Reference  
使用dubbo提供的@Reference注解

@Service
    public class OrderServiceImpl implements OrderService { 
    
        //@Autowired
        @Reference
        UserService userService;

@EnableDubbo  
开启注解功能

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

### 注意 ###

如果，没有在配置文件中配置  
dubbo.scan.base-package

需要，使用@EnableDubbo注解  
开启Dubbo注解功能

[https_github.com_apache_incubator-dubbo]: https://github.com/apache/incubator-dubbo
[70]: /images/20220514/bc45655932774c898088cb5c9a8080ec.png
[https_github.com_apache_incubator-dubbo-spring-boot-project]: https://github.com/apache/incubator-dubbo-spring-boot-project
[70 1]: /images/20220514/ba964e1ac770424db1c4ebd024afb0d0.png
[70 2]: /images/20220514/0f07ce642ff949589b74e2c786620d1d.png
[70 3]: /images/20220514/6df2124826944c1db6c05c76d33c2936.png