ZooKeeper和Dubbo是两个在分布式系统中常用的开源框架，它们可以协同工作，提供服务注册与发现、分布式协调等功能。
- 服务注册与发现：
- Dubbo服务提供者将自己的信息（如IP地址、端口、服务名等）注册到ZooKeeper上，作为服务的提供者。
- Dubbo服务消费者从ZooKeeper上获取服务提供者的信息，实现服务的发现。
公共依赖包common接口
public interface UserService {String getUser();
}生产者和消费者（Springboot版本这里都为2.7.2）都导入公共依赖包，另外都在服务启动类上添加@EnableDubbo注解，导入依赖如下：
<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-spring-boot-starter</artifactId><version>3.0.7</version></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-rpc-dubbo</artifactId><version>3.0.7</version></dependency><dependency><groupId>org.apache.dubbo</groupId><artifactId>dubbo-registry-zookeeper</artifactId><version>3.0.7</version></dependency><dependency><groupId>org.example</groupId><artifactId>common</artifactId><version>0.0.1-SNAPSHOT</version></dependency><dependency><groupId>org.apache.zookeeper</groupId><artifactId>zookeeper</artifactId><version>3.9.1</version></dependency>消费者代码如下：
application.yaml如下：
dubbo:application:name: consumerprotocol:name: dubboport: 20880registry:address: zookeeper://127.0.0.1:2181server:port: 9090@RestController
public class TestController {//UserService接口@DubboReference(version = "1.0")private UserService userService;@RequestMapping("/test")public String test(){return userService.getUser();}
}生产者代码如下：
application.yaml如下：
server:port: 8082dubbo:application:name: providerprotocol:name: dubboport: 20880registry:address: zookeeper://127.0.0.1:2181@DubboService(version = "1.0")
public class UserServiceImpl implements UserService {public String getUser(){return "hello world";}
}
通过访问localhost:9090/test可以访问到8082端口的hello world数据。由此Dubbo可以基本的实现远程服务调用。
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