一、项目结构

二、Maven依赖

consumer

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

    <dependency>
      <groupId>com.alibaba.spring.boot</groupId>
      <artifactId>dubbo-spring-boot-starter</artifactId>
      <version>${
    dubbo.starter.version}</version>
    </dependency>

    <dependency>
      <groupId>${
    project.groupId}</groupId>
      <artifactId>dubbo-common</artifactId>
      <version>${
    project.version}</version>
    </dependency>

    <dependency>
      <groupId>com.101tec</groupId>
      <artifactId>zkclient</artifactId>
      <version>${
    zkclient.version}</version>
    </dependency>

    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <optional>true</optional>
    </dependency>

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

provider

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

    <dependency>
      <groupId>com.alibaba.spring.boot</groupId>
      <artifactId>dubbo-spring-boot-starter</artifactId>
      <version>${
    dubbo.starter.version}</version>
    </dependency>

    <dependency>
      <groupId>${
    project.groupId}</groupId>
      <artifactId>dubbo-common</artifactId>
      <version>${
    project.version}</version>
    </dependency>

    <dependency>
      <groupId>com.101tec</groupId>
      <artifactId>zkclient</artifactId>
      <version>${
    zkclient.version}</version>
    </dependency>

    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <optional>true</optional>
    </dependency>

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

三、各个模块

common提供接口接口，接口实现类在provider中，在consumer中调用方法

common

public interface HelloService {
    
    /**
     * 问好
     *
     * @param name 姓名
     * @return 问好
     */
    String sayHello(String name);
}

consumer

@RestController
@Slf4j
public class HelloController {
    
    @Reference
    private HelloService helloService;

    @GetMapping("/sayHello")
    public String sayHello(@RequestParam(defaultValue = "hello dubbo") String name) {
    
        log.info("i'm ready to call someone......");
        return helloService.sayHello(name);
    }
}

配置

server:
  port: 8080
  servlet:
    context-path: /demo

spring:
  dubbo:
    application:
      name: spring-boot-demo-dubbo-consumer
      registry: zookeeper://127.0.0.1:2181

provider

@Service // 这注解不是spring的是com.alibaba.dubbo.config.annotation.Service下的注解
@Component
@Slf4j
public class HelloServiceImpl implements HelloService {
    
    /**
     * 问好
     *
     * @param name 姓名
     * @return 问好
     */
    @Override
    public String sayHello(String name) {
    
        log.info("someone is calling me......");
        return "say hello to: " + name;
    }
}

配置

server:
  port: 9090
  servlet:
    context-path: /demo

spring:
  dubbo:
    application:
      name: spring-boot-demo-dubbo-provider
      registry: zookeeper://localhost:2181

四、需要安装zookeeper

zookeeper 默认端口是2181

参考文章：https://blog.csdn.net/y1534414425/article/details/110748867

五、运行

先运行zookeeper，在运行provider 和 consumer

1. 进入服务提供方 spring-boot-demo-dubbo-provider 目录，运行 SpringBootDemoDubboProviderApplication.java
2. 进入服务调用方 spring-boot-demo-dubbo-consumer 目录，运行 SpringBootDemoDubboConsumerApplication.java
3. 打开浏览器输入 http://localhost:8080/demo/sayHello ，观察浏览器输出，以及服务提供方和服务调用方的控制台输出日志情况

六、使用dubbo-admin进行监控

项目地址：https://github.com/apache/dubbo-admin

这是一个前后端分离的项目，所以要运行两个项目。

运行后端的时候默认端口是8080，可能会和其他程序端口冲突。自行修改一下，我这用的是8088

后端端口地址修改了，前端也要跟着改。配置地址如图所示

前后端项目都运行起来后，浏览器打开：http://localhost:8082/，用户名密码都是root

这是我们刚才搭建的dubbo的服务

提供者和消费者监控


还有很多其他的监控功能