使用Dubbo实现RPC远程调用（Maven工程）

本是古典何须时尚 2023-10-12 13:27 16阅读 0赞

server项目目录结构

![10f5b66b99f64dbeb3750b56cf98343c.png][]

创建统一的api接口（提供给服务提供者和服务消费者使用）

public interface ILoginService {
        String login(String username,String password);
    }

将改暴露的接口导出

![d961c1b475c14d33b0894cbfd06ee909.png][]

dubbo-server端

引入pom文件（引入nacos或者zookeeper依赖）

<dependencies>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.11</version>
          <scope>test</scope>
        </dependency>
    
        <dependency>
          <groupId>com.jgh</groupId>
          <artifactId>dubbo-server-api</artifactId>
          <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
          <groupId>org.apache.dubbo</groupId>
          <artifactId>dubbo</artifactId>
          <version>2.7.8</version>
        </dependency>
    
    
    
    
    
    
        <dependency>
          <groupId>org.apache.zookeeper</groupId>
          <artifactId>zookeeper</artifactId>
          <version>3.4.7</version>
        </dependency>
        <dependency>
          <groupId>org.apache.curator</groupId>
          <artifactId>curator-framework</artifactId>
          <version>2.8.0</version>
        </dependency>
        <dependency>
          <groupId>org.apache.curator</groupId>
          <artifactId>curator-recipes</artifactId>
          <version>2.8.0</version>
        </dependency>
    
        <dependency>
          <groupId>com.alibaba.nacos</groupId>
          <artifactId>nacos-client</artifactId>
          <version>1.2.1</version>
        </dependency>
      </dependencies>

server端暴露接口的实现类

public class LoginServiceImpl implements ILoginService{
        public String login(String username, String password) {
            if (username.equals("admin")&&password.equals("admin")){
                return "success";
            }
            return "failed";
        }
    }

dubbo配置实现类application.xml

配置server端启动类（Maven项目启动方式---自行更换成springboot）

public class App 
    {
        public static void main( String[] args )
        {
            Main.main(args);
        }
    }

dubbo-client端

client目录结构

![9b777b1656ed4a73bc270e5ae2290bff.png][]

pom文件(引入nacos和zookeeper注册中心)

<dependencies>
            <dependency>
                <groupId>com.jgh</groupId>
                <artifactId>dubbo-server-api</artifactId>
                <version>1.0-SNAPSHOT</version>
            </dependency>
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo</artifactId>
                <version>2.7.8</version>
            </dependency>
            <dependency>
                <groupId>org.apache.zookeeper</groupId>
                <artifactId>zookeeper</artifactId>
                <version>3.4.7</version>
            </dependency>
            <dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-framework</artifactId>
                <version>2.8.0</version>
            </dependency>
            <dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-recipes</artifactId>
                <version>2.8.0</version>
            </dependency>
    
            <dependency>
                <groupId>com.alibaba.nacos</groupId>
                <artifactId>nacos-client</artifactId>
                <version>1.2.1</version>
            </dependency>
        </dependencies>

此处dubbo-server-api引入不成功的话，可能是本地maven仓库的地址没有统一

![b9d857825a394f3095577913dee6eb94.png][]

设置同一个仓库地址之后就能引入成功了

配置application.xml文件

client端启动程序

public class App {
        public static void main(String[] args) {
            ILoginService loginService = null;
            ApplicationContext applicationContext = new ClassPathXmlApplicationContext
                    ("classpath:META-INF/spring/application.xml");
            loginService = applicationContext.getBean(ILoginService.class);
    
            System.out.println(loginService.login("admin","admin"));
        }
    }

以上就是使用dubbo整合nacos/zookeeper的流程。

如何使用启动nacos和zookeeper可参考下一篇文章。

[10f5b66b99f64dbeb3750b56cf98343c.png]: https://img-blog.csdnimg.cn/10f5b66b99f64dbeb3750b56cf98343c.png
[d961c1b475c14d33b0894cbfd06ee909.png]: https://img-blog.csdnimg.cn/d961c1b475c14d33b0894cbfd06ee909.png
[9b777b1656ed4a73bc270e5ae2290bff.png]: https://img-blog.csdnimg.cn/9b777b1656ed4a73bc270e5ae2290bff.png
[b9d857825a394f3095577913dee6eb94.png]: https://img-blog.csdnimg.cn/b9d857825a394f3095577913dee6eb94.png